Do It Yourself Solar Energy

DIY 3D Solar Panels

Almost everyone in the United States is currently paying higher electricity bills. This usually eats deep into your salary. Fortunately, switching to solar energy is one way to save money and make your home eco-friendly. In DIY 3D Solar Panel, a pioneer in the field of solar panels known as Zak Bennet will teach you exactly how to set up a 3D Solar Panels in your home within 24 hours. You can be able to do this using tools you can easily find in your garage. He will also show you other tools you need to make this dream of living off-the-grid and saving money on electricity bill come true. This course contains an eBook and video guide. It is very affordable and you can get a refund if you don't like it. Read more here...

DIY 3D Solar Panels Summary


4.8 stars out of 48 votes

Contents: Videos, Blueprints
Author: Zack Bennet
Official Website:
Price: $39.00

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My DIY 3D Solar Panels Review

Highly Recommended

Recently several visitors of blog have asked me about this manual, which is being advertised quite widely across the Internet. So I decided to buy a copy myself to find out what all the fuss was about.

I personally recommend to buy this ebook. The quality is excellent and for this low price and 100% Money back guarantee, you have nothing to lose.

Learn Solar Energy

PV Systems Installation Solar Energy For International Development Solar Homes Healthy Buildings Ken Olson, principal Instructor, is formerly of Solar Energy International (SEI) and is an accredited Certified Vocational Instructor with over 25 years fulltime experience teaching practical hands-on & how-to Solar Energy.

Letters to Home Power

In 1978 my wife and I set out to develop this 9 acres of land we own on top of a mountain here in Vermont, to be as near as possible, self-sufficient by the time we retire. We have constructed a 65 foot tower on top of which we have put a 450 watt, 12 volt DC windmill. Also we have built, as a back-up charging unit, a 12 volt DC alternator, designed our own control panel that feeds 2 separate battery packs. We also have a commercial built AC generator which we start up approximately once a week to do our washing, vacuuming, etc. We hope very soon to add solar panels for charging these batteries also. We have pure mountain spring water, gravity fed into our home. We also built our own compost toilet and garbage disposal. We heat our place with firewood cut from our own land, in a stove we built from 2 oil barrels which utilizes a catalytic combustor. We have set out fruit and nut trees, a variety of berries, grapes and of course we grow our own garden for vegetables. Any project...

Green Buildigng Solar

Shunting Solar Power

Me the ability to power AC electronics off the solar panels. The boom box was the only load that got consistent use besides the motor. I found pedaling to the rhythm of my personal music selections to be blissful it made riding even more enjoyable than it already was. I am starting a small business selling solar trikes and trailers over the Internet. Initially, I am focusing on the solar-powered recumbent tricycle. Rather than having the PV canopy over the trailer, as my first solar cycle had, the PV is over the trike, providing shade and rain cover. Recumbent trikes have two wheels in the front, and because they are very low to the ground, they are incredibly stable. Like the solar trailer, the solar trike is also a contained and mobile power station. Solar Energy International, PO Box 715, Carbondale, CO 81623 970-963-8855 Fax 970-963-8866 sei Solar powered or AC

From Us to YOU

Here are some arguments in favor of using renewable energy sources to produce our electricity. 1. The development and use of renewable energy resources makes good solid financial sense. If the real costs (including environmental clean-up costs) of commercial power are considered, then the renewable alternatives are cheap by 2. The development and use of renewable energy sources is politically good for the country. Renewable sources reduce our dependence on foreign energy supplies. 3. Renewable energy sources are good for our environment. We have already demonstrated the clean nature of solar, microhydro, and wind power. Only these types of sources now offer us long term, non-polluting, energy. 4. Research and development in renewable energy will produce spin-off technologies that will benefit every lifeform sharing our fragile environment. For example, consider solar powered water pumping for arid areas. We can use these arguments on Senators, Congressmen, or any elected official...

Forum 2001

Solar Energy The Power to Choose American Institute of Architects American Society of Heating Refrigerating and Air Conditioning Engineers American Society of Mechanical Engineers American Solar Energy Society Interstate Renewable Energy Council National Association of Home Builders Solar Energy Industries Association Sustainable Buildings Industry Council Utility PhotoVoltaics Group American Solar Energy Society 2400 Central Avenue, Suite G-1 Boulder, CO 80301 Phone 303-443-3130, Fax 303-443-3212 E-mail ases,Web site Dear Mr. Perez, Over the last few years that I have been studying residential renewable energy projects, I have noticed an interesting trend people always seem to crave more energy. Once a system is installed, people seem to fantasize about more solar panels or more battery capacity. I assume that since the energy is green, people feel justified in running as much stuff as they can.

Nomad 300

Solarex Solar Panels

Ill and Carol Hoover live in a remote California mountain canyon, isolated from the hubbub of city streets and highways. Their concrete house is cut into the canyon wall, overlooking a stream and pond. Wildlife regularly visits this sanctuary, especially deer, raccoon, wild pig, and bird life of all sorts. The Hoovers' home has been independent of the utility grid since it was built. They chose renewable energy sources to avoid ugly and expensive power lines intruding into the canyon. In trying to cool the house, the Hoovers tried some portable swamp coolers. These helped some, and for more improvement, they changed to window-mounted swamp coolers powered by Siemens solar panels. These worked just well enough to be teasers. The water source had enough mineral salts to rapidly build deposits (mostly magnesium). Maintenance was a problem, so they decided to search for something better. In 1998, Bill came to me asking about air conditioning. For several years, I have been his consultant...


A car designed & built by Dartmouth College students will compete in the 4th annual running of the Tour de Sol, a 6 day race for solar powered vehicles from Zurich to Lausanne, Switzerland, ending July 3, 1988. The PVs for the vehicle are standard models from Heliopower, Inc., Piscataway, NJ. Call 201-980-0707 for more info.

New York

Apr. 16-21, '01 PV Design & Installation, Ashokan Field Campus, Woodstock NY. Solar site analysis, system sizing, equipment, appliances, demonstrations, lab exercises, & hands-on installation. US 550. Solar Energy International (SEI), PO Box 715 Carbondale, CO 81623-0715 970-963- 8855 Fax 970-963-8866 sei Housing & logistical info Larry Brown, Sun Mountain, PO Box 1364, Olivebridge, NY 12461 914-657-8096


Apr. 23-28, '01 PV for Ecovillages workshop. Basic PV for the off-grid home. Lectures, labs, & hands-on instruction. Eco Village Training Center at The Farm in Summertown. US 550. Camping & lodging available. Solar Energy International (SEI), PO Box 715, Carbondale, CO 81623 970-963-8855 Fax 970-963-8866 sei

Windy Dankoff

While multi-national corporations commit massive resources to developing photovoltaics, small companies and private inventors are putting PV power to use in small-scale, appropriate applications. Special water pumps required for solar use are among these innovations. Solar power differs fundamentally from conventional electric or engine-powered systems, so solar pumps often depart from the conventional. PV arrays produce DC power, rather than the AC from conventional sources. And, the power available varies with the sun's intensity. Since it costs less to store water (in tanks) than energy (in batteries) solar pumps tend to be low in power, pumping slowly through the duration of the solar day. This article is vague, of necessity -- the subject matter could easily fill an entire book AND a good sized catalog. Solar pumps are utilizing many new, innovative designs and specifications are ever-changing. For more information, refer to the latest catalogs from PV suppliers, and consult a...


Colorado Solar Energy Industries Association (CoSEIA) New Product Exposition and Annual Meeting. 11 AM to 5 PM. CoSEIA, 2170 S. Parker Rd., 255, Denver, Colorado 80231 303-750-9764 Fax 750-0085 Carbondale, CO. SEI hands-on workshops. 1 & 2 week sessions. PV design & installation, advanced PV, wind power, microhydro, solar cooking, environmental building technologies, solar home design, & straw bale construction. Experienced instructors & industry reps. US 550 week. Solar Energy International (SEI), PO Box 715, Carbondale, CO 81623 970-963-8855 Fax 970-963-8866 sei


Feb. 12-17, '01 Line-Ties and More workshop, Sacramento. Basic PV for off-grid applications & utility line-ties. Lectures, labs, tours, & hands-on installation. Co-sponsored by NCSEA& Sacramento Municipal Utility District. US 550. Solar Energy International (SEI), PO Box 715, Carbondale, CO 81623 970-963-8855 Fax 970-963-8866 sei


Mar. 5-10, '01 PV for Park Services workshop, Phoenix. Basic PV for off-grid applications. Focus on national park public land applications water pumping, gate entry systems, restrooms, etc. Lectures, labs, & hands-on components. US 550, camping available. Co-sponsored by AZ Dept. of Commerce Energy Office & Tonto National Forest District. Solar Energy International (SEI), PO Box 715, Carbondale, CO 81623 970-963-8855 Fax 970-963-8866 sei August 8-10, '01. Flagstaff, Arizona. Third annual Southwest Renewable Energy Fair. To be held at the NAU campus in conjunction with a national RE conference. Greater Flagstaff Economic Council, 1300 South Milton Rd., Suite 125, Flagstaff, Arizona 86001 800-595-7658 or 520-779-7658 Fax 520-556-0940 swref Glendale & Scottsdale, AZ. Living with the Sun Lecture series by AZ Solar Energy Assoc. Save money & the environment. History & current overview of concepts, design,...


April 2-7, '01 Solar, Wind, & Water Power For Off-Grid Living Lasqueti Island, BC. Site analysis, system sizing, equipment, appliances, lab exercises, & tours of local systems. US 550. Solar Energy International (SEI), PO Box 715, Carbondale, CO 81623-0715 970-963-8855 Fax 970-963-8866 sei Local housing & logistics Melinda Auerbach, Morewater Road, Lasqueti Island, BC V0R 2J0 Canada 250-333-8898 Fax 250-333-8670 melinda


Mar. 14-16, '01 Greenprints 2001, Sustainable Communities by Design Conference & Green Trade Show. Building solutions, high performance building design, clean energy, & sustainable community development. Westin Peachtree Plaza & AmericasMart, downtown Atlanta. Info Sponsorship marci Exhibitor mstar 404-325-1007

F Word Power

Renewable Energy Terms What does it mean when you read that a renewable energy generating source is rated at x watts Well, that depends on the device. This term can be pretty confusing. If you're looking at photovoltaic (PV) panels, they are rated at 1,000 watts per square meter (full sun), at 25 C (77 F), and at their maximum power point. Since this point is where the voltage is generally at 17 or 18 volts, and your system voltage will be 12 to 15 volts, it doesn't represent what you'll get out of your PV panel in a battery-based renewable energy system. The real-world temperature of a PV panel in operation can be 45 C (113 F) or higher. Since PV output drops in higher temperatures, the rated output can be even more misleading.

Welcome to Home Power

We do hear all of you who are complaining about the Third Class service that the US Post Office offers. Well, the USPO considers Home Power advertising junk mail. As such, Home Power moves last, is not forwardable, and can be trashed if the Post Office has trouble delivering your copy (imperfect address or whatever). We tried to get Second Class magazine mailing status from the Post Office, but were refused because our parent company (Electron Connection) is in the renewable energy business. So if we want to distribute Home Power free, there is only one avenue-Third Class mail. bucks you get faster, more secure, forwardable delivery of your year's issues (also with address correction should you move and forget to tell us). And you help Home Power spread the word about renewable energy resources. If you want to help out Home Power, if you feel that HP's info is worth something, or if you just want your copy quickly & securely, then First Class Home Power is for you. One more thing,...

For Function For Form For Life

Ceramic tile performs as an energy saver, as well, retaining heat and emitting It slowly, for efficient building climate control. Partnerships with Spain's pioneers In solar energy have resulted In a patented system of photovoltaic facades. Tiles clad with solar cells actually produce energy year round. Ventilated facades - photovoltaic or not - create a thermal barrier between building surface and tile, conserving energy, and reducing heating and cooling costs and noise pollution.

Presented By Ecostructure

Before acknowledging this year's winners, we'd like to take a moment to thank our judges Lee Durston, building scientist at BCRA in Tacoma, Wash. Dan Heinfeld, senior principal and president of LPA, in Irvine, Calif. Dan Rockhill, J. L. Constant distinguished professor of architecture at Kansas University in Lawrence, Kan. and Paul Torcellini, commercial building research group manager at the National Renewable Energy Laboratory in Golden, Colo.

Water Powered PV Tracker

This is the second water-powered tracking system I have built. I first came up with the idea several years ago after installing my first solar powered pumping system on another, very low-producing well. I mounted a single 50 watt PV panel on a fixed mount, figuring this low-powered setup would approximately match the well's low water production. The well turned out to produce more water than the solar-electric system could extract each day. So I looked at using a tracking mount to boost pump output.

Materials And Sources

Millwork Skyblend, Certified Wood Products, Dan Haugen, Paints and finishes Pure Performance, Zero VOC, PPG, ppg Pavers VAST Enterprises, Photovoltaics and solar domestic hot water Westwood Renewables, Spruce Line 195W, Outback inverter and batteries, Evergreen Solar Panels, Solar hot water Solar Skies flat plate collectors, Rheem Soleraide HE tank, Caleffi pump, Caleffi Hydronic Solutions, Plumbing and water systems Astracast, Toto, Grohe, Roofing Fully adhered membrane roofing, Firestone UltraPly TPO, roofing tpo ultraplytpo

Passive Solar Building Design

Solar energy travels through the windows of a building, increasing the energy used by air conditioners and degrading occupant comfort. An ideal passive solar building minimizes internal energy use by optimizing its design to suit the annual path of the sun and the local climate. A primary goal in energy-efficient design for buildings in warm climates such as Shenzhen is that they must minimize solar heat gain during much of the year. Based on solar energy calculations for each window direction (north, south, east, and west), recommendations were made regarding optimum window shape and orientation, as well as shading options. The passive design incorporated knowledge of the sun's path, including sun angles during different days and azimuth angles (sun-path from a bird's-eye view) throughout each day of the year. Figure 6 shows elevations at noon on three dates for Shenzhen (latitude 22.18 N), and Figure 7 shows azimuth angles for Shenzhen throughout the day on those dates. In addition...

Daybreak Energy for Your

12 VOLT WASHING MACHINE In response to A.L.'s letter in 8, we offer a solution. We have produced an AUTOMATIC WASHER CONVERSION KIT since 1983, for both 12 and 24 volts. It adapts Kenmore and Whirlpool washers (only). 120 vac power is required to run the timer and controls, but the smallest available inverter (100 watt) can handle that. The big job of running the machine is handled by a high efficiency DC motor. This eliminates the need for a 2000 watt inverter, and uses much less energy too (average 25 amps at 12V). The kit is pre-wired and simple to install. A similar conversion is available for gas driers. Thank you for being the finest source of user information in the field We are proud to contribute articles to the cause. Windy Dankoff, Flowlight Solar Power, Santa Cruz, NM. Solar Energy Convention in Georgia Thanks to you - Our free Solar Energy Convention in Georgia was the beginning of Great events to come. The day of the convention finally arrived, there was a cloudless sky,...

Robert L Neuileb PhD and Marilyn K Neulieb MS

With study, ingenuity and determination, the sun's energy may serve many of our needs. Technologies to capture the winds and radiant solar energy are emerging. However, there is no assurance that the use of solar energy will create order on the earth. For millions of years, fires on prairies and forests alike have been started by lightning from sun-driven storms. The magic sun has repeatedly converted prairies and forests into a disordered scattering of ashes. The sun can work its magic for man, but it comes with no guarantees, only opportunities.

Linear Current Boosters

Several manufacturers are now marketing devices that promise to triple current output from a PV panel. These linear current boosters (LCBs) help eliminate the need for storage batteries or oversized arrays when running electric motors directly from the panels. Is this magic or simply alot of hype Actually it's neither. In keeping with Home Power's philosophy of delivering accurate and useful information on new renewable energy products, these devices were tested and their performance documented. The following article explains their operation and gives the facts and figures in how well they perform.

Appliance Consumption in Watthours per day Total Consumption 2704 Watthoursday

These components were selected to provide the most cost effective power for Roger and Ana. A renewable energy system is more personalized than a pair of shoes. One size does not fit all. This set of components is a specific match for their energy requirements, site and lifestyle. A system for different folks in a different location would have different amounts and types of equipment. A renewable energy system's success or failure depends on the amount and quality of the planning done before a single piece of hardware is ever purchased. Consult an individual or company with the experience necessary to see that you get the system you require without spending more than necessary.

Po Box 548 Santa Cruz Nm 87567 505 7539699

FLOWLIGHT SOLAR POWER is a leading supplier of independent electrical systems by mail order. Please call or write for details on pumping or home power. To deal with the three bigs we must develop exsisting renewable energy technologies. We must investagate promising edge level processes. We must discover new physical and biological systems for energy generation. the free lunch is around the corner. Let's turn that corner.

Using solar distillation PVs for pumping

Practically any seacoast and many desert areas can be made inhabitable by using sunshine to pump and purify water. A 10 gallon day solar still now purifies sea water for drinking, cooking and other household needs for a residence near George Town, Exuma, in the Bahamas. Solar energy does the pumping, purification, and controls seawater feed to the stills. WASHINGTON STATE'S ONLY RENEWABLE ENERGY STORE Purify your water with Solar Energy

Direct electric resistance heating

The conversion factor will hopefully improve in the near future as conventional sources of primary energy are increasingly replaced by renewable sources. The growth rate of all renewable energy sources together has been anticipated to increase to about 25 per cent of the total energy production by 2020. Yet, even if this ambitious goal is reached, the amount of renewable energy available will still be limited and prices for electricity can be expected to rise. So there is a strong argument that electricity is and will continue to be too valuable to be 'burned' merely to produce low temperature heat

Greenhouse Category

Efficient Greenhouse

The multiple decks and terraces of architect Ray Kappe's exploded box design (right) expand living space by extending it outdoors. Drought-resistant native plantings add vibrancy while requiring little water or maintenance. Photovoltaics integrated into awnings and attached to trellises (above) collect solar energy while helping provide shade. Active solar technologies include a 2.4-kW rooftop solar array linked to a battery storage system that generates 60 percent to 75 percent of the home's electrical power. A solar water heater (also situated on the roof) serves the radiant floor heating and domestic water systems, and some of the solar panels double as awnings to shade roof decks.

Arrouf Abdelmalek Courtyard House

Dana Raydan trained as an architect in the Lebanon and the UK. Her research at the University of Cambridge was into the potential of renewable energy in urban environments, a subject on which she has published widely. Dana combines architectural practice in London with teaching and research.

Home Power Magazine Post Office Box 130 Hornbrook CA 960440130

We've been busy compiling the survey data that comes in with your subscription forms. We thought all of you might be interested in a look at what we're doing with renewable energy, what we're planning on doing, what equipment we now use, and what equipment we are planning on using. We began collecting this data in November of 1987 and here is an update as of 26 March 1989. Feel free to add your data to this survey by using the subs form on page 23. Renewable Energy Use - NOW Renewable Energy Use - FUTURE Renewable Energy Usage Renewable Energy Resource Potential Renewable Energy Equipment Usage

Learn Photovoltaic Design Installation

Register now for an intensive hands-on photovoltaic workshop beginning July 10th in Colorado. Entitled PV Design and Installation for Practitioners, this unique five or ten day program gives participants practical information on solar powered electrical systems. Former Colorado Mountain College (CMC) instructors, Steve McCarney, Ken Olson, and Johnny Weiss are now offering their training program as Appropriate Technology Associates. ATA personnel are professional designers, installers and industrial trainers in the field of renewable energy technologies. Our ATA team has been working together continuously and full-time for the last eight years. We have been involved in such projects as remote power systems, low cost solar food dryers, solar water distillation, award winning passive solar homes, commercial scale greenhouses and construction management of multi-million dollar solar projects. Home Power readers can review the feature article about our program in HP 3.

Climaterelated Revenue Booms

Within the awards, the Green Power Purchasing category recognizes partners who distinguish themselves through purchases of green power from a utility green-pricing program, a competitive green marketer, or a renewable energy certificate (REC) supplier. Among the 10 award recipients in this category are several companies in the building, design, and construction realm including

Program Supports Climate Positive Growth

Earth's population increases and our cities grow, we need to ensure we have the models in place to sustain our way of life in an increasingly urbanized world, says former president William J. Clinton. The Climate Positive Development Program will set a new global standard for developments that will minimize environmental impacts and benefit economies as we build and rebuild homes, schools, and businesses. Property developers and local governments will partner on initiatives including implementing economically viable innovations in building generating clean energy waste and water management and outdoor lighting systems. When the initial 14 projects are completed, nearly 1 million people will live and work in the communities. For more information, visit

A22 International Energy Agency

Collaborative programmes in the various energy technology areas are conducted under implementing agreements, which are signed by contracting parties (government agencies or entities designated by them). There are currently 42 implementing agreements covering fossil-fuel technologies, renewable energy technologies, efficient energy end-use technologies, nuclear fusion science and technology, and energy technology information centres.

Home Power Mercantile

Alternative Energy Engineering - 2 Bobier Electronics- 14 Drag-A-Mouse - 37 Electron Connection - 30 Energy Depot- 22 Energy Tech- 14 Flowlight Solar Power- 17 Heliotrope General - 33 Home Power Magazine - 38 Kyocera America - 29 Mercantile Ads - 47 & 48 MicroAds - 46 Photocomm- 42 Ramona Works - 15 Real Goods Trading Co. - 42 Sacks Securities - 41 Trace Engineering -15

Where Construction Meets Education

Pittsburgh Corning has expanded its LightWise Architectural Systems to include energy-efficient glass-block panels. Each block features a low-E coated glass panel that filters out most solar energy, helping to lower heating and cooling costs. It has an insulating U-value of 0.34 unframed (0.38 framed) and is available in prefabricated, graffiti-resistant systems with a range of visibility and privacy options. (800) 624-2120 CIRCLE NO. 86

Other means of heat storage

Heat Sink Types

This means of energy storage is superior to all the above means. The classic example is petroleum. Solar energy has been stored in plant material, which decomposed into oil, and now millions of years later, with no energy loss during the storage, 10,000 kWh m3 can be released by simply burning it -an incredible energy density. The only small problem is that the rate of use exceeds the rate of geological production, given the millions of years' time span

Water storage technology

Klagenfurt University

The storage need in a solar system is often determined by the ratio of the maximum to minimum monthly solar radiation. Figure 13.1.2 gives this data for different latitudes. When the maximum-minimum ratio is less than 5, even wintertime solar energy may be enough to provide the heat load, whereas values higher than 10 mean such a large fluctuation that a seasonal storage or

Groundcoupled and geothermal heat

Geothermal Depth Collector

Geothermal heat can be used to generate electricity and heat but the geology of Central Europe limits its application for heating purposes. In spite of its huge energy potential, this environmentally friendly technology is currently only rarely used. In comparison to solar energy that reaches the Earth (5.4 x 1015 MJ a), the terrestrial heat flux through the Earth's crust is nearly 6000 times smaller (1012 MJ a). This is, however, still three times greater than the total worldwide energy consumption.

Carsten Petersdorff 1231 Concept

In high-performance houses, while the heat demand is reduced to a very low level and occurs during only a few months of the year, it does not decrease to zero. Certainly, a significant part of the space heating and major part of the hot water demand can be covered by solar energy. However, to cover 100 per cent of the demand would be economic nonsense. Such a system would be grossly over-dimensioned most of the year, having to dispose of heat. A backup heating system to cover the peaks is essential. Burning a fossil fuel is a proven means of providing this backup. Due to the small absolute quantities of fuel consumed, the environmental impact is negligible. Especially in high-performance houses, the following should be considered

Active solar heating Water

Heating DHW with solar energy in a high-performance house is sensible. In such houses, the energy needed to heat domestic water can equal or even exceed the energy needed for space heating since the latter has been so far reduced by insulation and heat recovery. Furthermore, demand for heating domestic water is a 12-month energy demand, including the high insolation summer months. Using a solar system is therefore an effective way of reducing the total primary energy demand. Increasingly, the market for solar water systems also includes systems that provide, in addition to water heating, space heating in winter.

Motorized Sources for Equalizing Charges

A lawnmower powerplant just to equalize their batteries. The very nature of wind and solar energy makes it very difficult to equalize the batteries without such a motorized power source. This generator makes excellent backup power for times when Mother Nature isn't cooperating with our energy demands. To understand our increasing need for renewable energy, we must know that our future lies not in the hands of those who abuse, but in the hands of those who efficiently use our valuable resources.

Recommendations for Windows and Walls

As shown in Table 2, solar gain through windows accounts for approximately 40 percent of the total cooling energy load for a base case unit in Shenzhen. Over a year, the energy from direct sunlight per area incident on all building surfaces (north, south, east, and west) totaled nearly 2.53 MWh 2. Northern windows received 3 percent of the total direct annual solar energy per area, while southern windows received 33 percent, and western and eastern facing windows each received 32 percent (64 percent combined). As a result, it was desirable that building designs minimized western and eastern exposures in order to maximize energy-efficient designs. Recommendations for window design in Shenzhen follow in the next several paragraphs.

Careers in Photovoltaics Start with Training

Job placement in the solar energy field, particularly in photovoltaics, has become more like job selection for graduates of the Colorado Mountain College Solar Program. Energy Technologies Symposium and International Exposition (RETSIE) and the annual meeting of the American Solar Energy Society (ASES). Groups and organizations sponsoring CMC trainees include the PV industry, Peace Corps, Department of Defense, World Health Organization, Agency for International Development, state and local governments, university and national solar energy laboratories. In addition the CMC instructors have authored numerous technical papers published by the International Solar Energy Society and the American Solar Energy Society. Magazine articles on the CMC Solar program have appeared in PV International, Solar Age, Energy Report, Mother Earth News, and Energy Talk. Editor's Note I was part of a PV seminar with Steve McCarney and Johnny Weiss at the 1987 American Solar Energy Society's annual meeting...

Energy performance and performance calculation

For solar wall heating and solar insulation, the same methodology can be used for characterizing the wall construction. The U-value can be calculated according to ISO 6946 (EN ISO 6946, 1996). In general, the wall construction is an inhomogeneous building element consisting of wall material, transparent insulation product and frame part. Similar to a window, the solar gains are proportional to a total solar energy transmittance (g-value) of the complete system gSWH - or, in collector terminology, a solar efficiency nSWH. The basis for the determination of this parameter is the thermal resistance network of Figure 9.4.6 the solar energy transmitted is proportional to the g-value of the transparent insulation gTI and the relation of the resistance from the wall surface to the exterior Rtii + R to the total resistance R

Saving Energy Saves Money

After space heating and cooling, the largest user of home energy is usually the hot water heater. Fortunately this energy drain can easily be reduced with only moderate expense. Some people seem to think that solar hot water was a 70's fad, and faded with the times. Not true Solar hot water was very popular in the Los Angeles area in the early 1900's, and disappeared only when the hot water heater manufacturers gave people free gas and electric hot water heaters in exchange for their old-fashioned solar units, assuring a perpetual market for their supplies of then cheap gas and electricity. Well, it may have made sense back then, but one quick glance at our utility bill tells us that we've been had. A family of four often spends 50 per month or more to operate their electric hot water heater. Solar energy is presently making hot water for thousands of people all over the world, many in climates where sunshine is limited. Solar hot water does not have to be complicated or expensive. A...

Utilities Meet Solar Challenge

O Last October, Julia Hamm, executive director of Washington, D.C.-based Solar Electric Power Association, challenged solar and utility industries to deploy solar power on a massive scale despite new economic barriers. SEPA recently issued a report demonstrating the industry has responded. The 2008 Top Ten Utility Solar Integration Rankings report identifies those utilities in the U.S. that have the most significant amounts of solar electricity integrated into their portfolio and records the increased collaboration of U.S. electric utility and solar energy industries. The overall installed solar capacity of the Top 10 ranked utilities rose from 711 megawatts to 882 megawatts, reflecting a 25 percent growth since the challenge was issued. Ninety-two utilities participated in this year's survey. Renewable portfolio standards, impending carbon policy, and fluctuating costs of power generation and fuel resources top the list of drivers towards improved perception of solar electric...

New Accolades In New Orleans

Sustainable features of the homes include solar power, geother-mal heating and cooling systems, tankless water heaters, Energy Star appliances, and efficient lighting. The homes also include storm-resistance features such as 5-foot or 8-foot elevations to protect the structure from flooding impact-resistant glass or hurricane fabric to protect windows rooftop access and mold-free paperless dry wall.

Design Principles For Sustainable Urban Housing In China

Others are about quality of life and the ability of people to live together without alienation. At the qualitative building level, the design team at MIT sought design solutions where the housing can be far more energy efficient, principally through the reduction of air-conditioning and improvements in the design of the building fabric, to reduce carbon dioxide emissions through the dependence upon climate-destructive energy sources such as coal-fired power plants, and to maximize the use of natural ventilation and solar energy for daylighting and winter heating. At an urban scale, we sought to develop plans that were more ecologically responsive in relation to water conservation and retention, wind patterns in and around buildings, and to landscape space that built a sense of community. However, rather than developing a design that might contain a large palette of available sustainability techniques, we sought to develop an understanding of those that would work best, that would be...

Heat production and distribution

The 48 single family houses in the southern tract have a micro-district heating system per house row. Solar heat and electricity produced on the house roof tops are also centrally collected and distributed. Solar energy also covers 65 per cent of the DHW need. These central units are managed by the local utility.

Experience with Appliances

Encouraging the use of energy-efficient appliances requires that standards be introduced and that consumers are aware of energy efficiency. Several energy efficiency programs have been introduced in China to date, with mixed success.The China Green Lights program addresses two major barriers to reform, the high initial cost of efficient technologies and poor quality of some of the products manufactured in China. Screw-in compact fluorescent lights have been observed to fail very prematurely, negating the life cycle savings and losing consumer acceptance. The CFC-Free Energy-Efficient Refrigerator Project aims to improve the energy efficiency of Chinese refrigerators through a series of

Team Germany Shines At The Solar Decathlon

Team Germany's surPLUShome (left) took first place in the U.S. Department of Energy's 2009 Solar Decathlon. The competition pitted solar-powered homes designed and constructed by 20 student teams (16 U.S. teams and four foreign teams) against one another in 10 competitions from Oct. 9-18, including architecture, market viability, engineering, lighting design, communications, comfort, hot water generation, appliances, home entertainment, and net metering.

The Edge The Edge Ah Yes The Edge

We can look at the relatively inexhaustible resources which are available to us right now. If these can be effectively harnessed we will be all right energy wise for at least a million years. Two of these, wind and water, have been used for many years as energy saving and energy creating systems. These will be here as long as the Earth survives. Another, solar, will be around even longer. It is the opinion of many intelligent people that with proper technological engineering these three sources alone could provide all the energy that human society needs. Solar energy is also the best bet to power many extraplanetary ventures.

CBWIBTOnE Igctrolyacr

I've studied and researched fuel cells and hydrogen for several years, and I find them fascinating and technically challenging. It was always frustrating to learn only from books, without any hands on experience with real equipment. This lead me to create KATTEL (Klamath Advanced Transportation Technology and Energy Lab), a nonprofit organization dedicated to advancing renewable energy, with special emphasis on fuel cells and hydrogen. We offer all services free of charge. Recently, legislation was passed to establish the Oregon Renewable Energy Center on campus. This fall, OIT will offer bachelor's degrees in engineering with emphasis on PV, fuel cells, and other renewable technologies.

The Authors

Lara Greden completed her Ph.D. in the Building Technology Program at MIT in June 2005 and is now a consultant with The Weidt Group, an energy and sustainable design consulting firm. Her research focuses on flexible approaches to sustainable building design to address risk using real options theory. Applications include hedging risk in naturally ventilated buildings and implementing other innovative, sustainable technologies. She received dual M.S. degrees from MIT in civil and environmental engineering and in technology and policy, and she holds a B.S. in mechanical engineering from the University of Minnesota. Greden's Master's thesis research aimed to understand the market and policy conditions for sustainable housing in urban China. She is also a team member of the Fab Tree Hab design team (winner Habitat for Humanity SECCA design competition) and did sustainable design work (renewable energy systems and passive design aspects) for the 1999-2001 Turkey Workshops at MIT. She was a...

Richard Perez

Roger and Ana decided to investigate alternatives to commercial power. They contacted their neighbors at Electron Connection and together we specified and installed a self-contained electrical system. The first step in any renewable energy system is a thorough survey of how much and what kind of electricity is needed. And this is where we started with Roger and Ana. Roger and Ana Murray decided early on to use only very efficient appliances within their system. And they decided to practice the cardinal rule of energy conservation, Turn it OFF if you aren't using it. As such, their electrical power consumption is much smaller than the average household. Their choices of appliances represents the same compromises every user of renewable energy faces.

Top Secret

The unauthorized placement of renewable energy on a utility grid. GUERRILLA SOLAR DEFINED Energy is freely and democratically provided by nature. This century's monopolization of energy by utilities both public and private threatens the health of our environment. Solar guerrillas believe that clean renewable energy should be welcomed by utilities. But utilities and governments continue to put up unreasonable barriers to interconnection, pushing common citizens to solar civil disobedience Guerrilla systems do not endanger utility line workers (see HP71, page 58). They share clean, renewable energy with others on the utility grid, and reduce the need for polluting generation plants. When interconnection for small-scale renewables becomes fair, simple, and easily accessible to all, there will be no more need for guerrilla action.

Ource List

Solar Energy Industries Association (SEIA) Energy Efficiency and Renewable Energy Clearinghouse (EREC) P.O. Box 3048 Merrifield, VA 22116 E-mail doe.erec Fax (l03) 893-0400 TDD (800) 2l3-295l BBS (800) 2l3-2955 (800) DOE-EREC (363-3l32) erec factsheets

Home Power Micro Ads

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Wind Data

To design naturally ventilated buildings and or comfortable outdoor environments, the first step is to obtain reliable wind information, such as wind speed and direction. For example, the National Renewable Energy Laboratory derived a set of typical meteorological weather data for 229 stations throughout the United

WindPV System

I have been a renewable energy buff since the 1974 energy crisis. Windmachines for generating electrical power always fascinated me. In 1974, I bought a 200 Watt 12 Volt windcharger and installed it on a 35 foot steel tower. It generated a small amount of power for the house. At the time, I had 5 24V aircraft 35 Ampere-hour batteries (wired in series to produce a pack of 130 VDC). The batteries fed a 1kW. rotary converter, 130 VDC in and 120 vac out, which ran the house. The 12V output of the wind charger fed a 12V to 120V, 150 watt Tripplite inverter which in turn fed a rectifier driven by a small auto transformer to boost the voltage up high enough to charge the 130V battery. I made a device this past summer called a maximizer which boosts the voltage output of the solar panels about 15 . It makes use of the solar panels ability to produce higher voltage when they are cool. I use two electronic Ampere-hour meters from Natural Power in my system, one measures DC Ampere-hour input to...

Pob 442

We had forgotten the 9th, more distant house until the last week. Bill located a battery in town and we set up a shuttle system to the charging station. The following month, Dave Katz of Alternative Energy Engineering went down with solar panels and but that's another story.


The lights have not replaced the candles completely as we still love the soft glow of candles. There is obviously a place for both forms of energy. Our 13 year old son, with a mischievous glow in his eye, suggested placing an array of candles in front of the solar panels. Another alternative to a wind, hydro or generator back-up system, if you will. Leo Morin who advertises in your publication as Free Energy Options gave very generously of his time in answering my many questions and helping me understand alot of the basics of photovoltaics. I would recommend him without reservations to anyone contemplating energy alternatives who lives in our neck of the woods, which in this case is Eugene to the coast of Oregon. He is very conscious of keeping the cost down and building with the option of expanding later, if you desire, incorporated into his recommendations. Enclosed is a small contribution as a way of thanking you for your publication. May the Force Be With You, Gerry & Nancy,...

PbO2 Pb 2H Sp

A battery rated at 100 Ampere-hours will deliver 100 Amperes of current for 1 hour. It can also deliver 10 Amperes for 10 hours, or 1 Ampere for 100 hours. The average car battery has a capacity of about 60 Ampere-hours. Renewable energy battery packs contain from 350 to 4,900 Ampere-hours. The specified capacity of a battery pack is determined by two factors-- how much energy is needed and how long the battery must supply this energy. Renewable energy systems work best with between 4 and 21 days of storage potential. A battery is similar to a bucket. It will only contain so much electrical energy, just as the bucket will only contain so much water. The amount of capacity a battery has is roughly determined by its size and weight, just as a bucket's capacity is determined by its size. It is difficult to water a very large garden with one small bucket, it is also difficult to run a homestead on an undersized battery. If a battery based renewable energy system is to really work, it is...

Basic Principles

Example, (4) home ventilating or cooling uses excess solar power exactly when it is needed most. (3) Water storage for irrigation has enormous potential for making the most of solar power, especially because the most water is required when there is the most sun It is ideal to store at least a two week supply of water. When your storage tank fills, allow it to overflow to some trees the GROUND stores water energy too Use drip irrigation, mulching etc. to minimize evaporation losses. (4) House or attic ventilation or cooling is a prefect way to blow off excess summertime solar power during hot weather.

Bri Institute Buraan

Somalia Karte

However, much has happened since the fall of Said Barre and the American Blackhawk debacle of the early 1990s. Peace has come to the northern regions, now called Somaliland and Puntland, and elections in Djibouti are breathing fresh hope for peace in the ragged war-torn regions of the south. With all electricity infrastructure destroyed, and among the best solar resources in the world, many Somalis are committed to using solar energy as a new building block for their infrastructure. Given that Somalia has largely been isolated from the rest of the world over the past ten years, it has not been exposed to the solar revolution. People in rural areas have concentrated on simply surviving and avoiding conflicts. So an entire generation of people is without education and relevant skills. As bright as they are, our students have had little opportunity to access formal education. When Frank began holding introductory classes, he had to start with the basics, from DC...


Midwest Renewable Energy Association (MREA) workshops. April 6-7, Wind Power for Rural Areas. May 5, Basic PV. May 6, Intermediate PV. May 26, Solar Hot Water Installation. June 10, Solar Water & Space Heating. June 11-15, Utility Intertie Wind Installation. June 16-20, Advanced PV installation. Call for cost, locations, instructors, & further workshop descriptions. Significant others half price. MREA, 7558 Deer Rd., Custer, WI 54423 715-592-6595 Fax 715-592-6596 mreainfo June 22-24, '01 Renewable Energy & Sustainable Living Fair (MREF), Amherst, WI. Exhibits, workshops, & demonstrations. The best fair. MREA, 7558 Deer Rd., Custer, WI 54423 715-592-6595 Fax 715-592-6596 mreainfo

RL Measures

A length of wire is known to have a resistance of 2W. If the wire is carrying 11A of current, how much Electro-Motive-Force or voltage E will be lost in the wire and i how much power is lost as heat in the wire Solution E IR E 11A x .2W 2.2V. . The power that is lost in the wire can be found using P IE P 11A x 2.2V 24.2 Watts W . This would be about half of the available power from a typical solar-panel.

Fuel cells

Fuel Cell Natural Gas

Fuel cells, like batteries, are electrochemical power sources. Whereas batteries store energy, fuel cells transform energy. A fuel cell steadily supplied with fuel generates electricity. The fuel can be virtually any chemical substance containing hydrogen. When hydrogen alone is not readily available as a fuel, it can be produced from substances such as natural gas, oil or methanol by a process called 'reforming'. Reforming, however, consumes energy, produces waste heat and is generally not emission free. Ideally, hydrogen is produced from water by electrolysis, where the electricity is generated by solar power (solar hydrogen).


Not all sources of renewable energy are as ethereal as sunlight or the wind. Some are as solid as a tree. Gasification of waste wood offers a renewable energy source for combustion. I recently met Richard and Karen Perez and we discussed Renewable Energy Lifestyles. It appears we have been traveling along parallel paths for the past 14 years. While Richard and Karen were concentrating on electricity, my work was and is toward home thermal self sufficiency (i.e. zero supplemental heat). By specifying appropriate insulation, adequate thermal mass and solar gain, most homes can operate the majority of the year without the additional thermal input of heating or air conditioning. Most people would not consider thermal conservation at such an intense level to be a practical investment. Just as there are trade offs in renewable energy equipment, (PV's, batteries, generators, etc.), so there are trade offs in thermal design (solar gain, thermal mass, heating systems, etc.). With the...

Market Drivers

Large-scale companies including BMW, Mars, and Interface tout LFG projects as part of their sustainability efforts, and other corporate citizens are purchasing renewable energy credits from LFG projects. Through green power energy initiatives, such as the EPA's Green Power program, a company can buy and trade the renewable attribute of electricity generation from a renewable source, helping to meet renewable energy goals and offset the company's fossil fuel use. Businesses including Staples, DuPont, and Pitney Bowes all have purchased RECs from LFG, and utilities such as Cinergy, Exelon, and We Energies are using LFG in their renewable energy portfolios. Using LFG for energy is a win-win opportunity. LFG energy projects involve citizens, nonprofit organizations, local governments, and industry in sustainable community planning and creative partnerships. These projects go hand in hand with commitments to cleaner air, renewable energy, economic development, improved public welfare, and...

Micro Ads

What a super magazine How incredibly fortunate that I somehow ended up on your mailing list, and I've enclosed a subscription form to cinch the deal. Although I'm not now a home power producer, I do have occasional need for batteries and PV panels to power oceanographic and meteorological data acquisition equipment, and being an oceanographer by training and not an electrical engineer, I've found many of the articles in HOME POWER right on target. My enthusiasm for your magazine, however, stems from my work with a renewable energy resource that is not as well known as wind or solar, but which has great promise, and that is the power of ocean waves. More on that in a moment, but first some quick business. company. One dream I have is to be involved in the design, construction, and operation of a community power plant that utilizes wave devices and PV panels for its renewable energy supply, with a diesel (or better yet, biomass or waste-derived fuel) generator for calm, cloudy days. I'm...


The second silo now houses state-of-the-art equipment that cleans and reuses up to 200,000 gallons of fresh and salt water at a time. In comparison, the center's old facility could handle only 43,000 gallons of water. Employing salt-water brining, backwash recovery, and solar-powered processing equipment, all of the center's water is reused with the exception of water that is lost to evaporation or used for cleaning.

More on Entropy

If a system can produce energy transitions within an ultra-short time interval, then the possibility exists for free energy during this interval. Free energy may lurk in the cracks between our perceptual intervals. In order to use this energy, a collection and storage system must only receive energy from the ultra-short system. This second system may be a one-way, inductive field system with internal dynamic equilibrium. On May 22 23, Flowlight Solar Power and Sun Selector will present a seminar in Santa Cruz, NM to explain & demonstrate photovoltaic water pumping equipment for livestock watering, small-scale irrigation and domestic water supply. Windy Dankoff will present a session on System Design encompassing both deep and shallow pumping systems. Featured will be a demonstration of two workings systems on site. Joseph Bobier will present Electrical Interfacing, highlighting Linear Current Booster (LCB) installation, adjustment and performance. His hands-on presentation will...

National Us

Appalachia Science in the Public Interest offers 42 videos, incl. Solar Dry Composting Toilets, Solar Hot Water Systems, PV, Solar Space Heating, Solar-Powered Automobiles, Quilted Insulated Window Shades, & more. US 25 + S& H, broadcast-quality tapes available. ASPI Publications, 50 Lair St., Mt. Vernon, KY 40456 606-256-0077 Fax 606-256-2779 aspi aspi Energy Efficiency & Renewable Energy Clearinghouse (EREC) Insulation Basics (FS142), New Earth-Sheltered Houses (FS120), PV Basic Design Principles & Components (FS231), Cooling Your Home Naturally (FS186), Automatic & Programmable Thermostats (FS215), & Small Wind Energy Systems for the Homeowner (FS135). EREC, PO Box 3048, Merrifield, VA 22116 800-363-3732 TTY 800-273-2957 energyinfo Energy Efficiency & Renewable Energy Network (EREN) links to gov. & private internet sites & Ask an Energy Expert online questions to...

Be Involved

SOLAR TODAY helps readers to make a difference by highlighting successful clean energy projects and providing access to the state, regional and student chapters of the American Solar Energy Society, now in 36 states. On Saturday, October 13, 2001, solar homeowners around the U.S. will open their homes to the public for the 6th Annual National Tour of Solar Homes. For more information, see the September October 2001 issue of SOLAR TODAY or visit the American Solar Energy Society web site at American Solar Energy Society

The Role of Policy

Has been in the development of energy standards for appliances. Programs such as China Green Lights and the CFC-Free Energy-Efficient Refrigerator Project have extended the traditional technology-based efforts by reaching consumers, dealers and other stakeholders with the product information needed to make responsible choices. Furthering the success of these projects is a new, unified energy informational label developed by the China Sustainable Energy Project (CSEP). The project encapsulates three key aspects of China's policy initiatives mandatory energy efficiency standards, mandatory (and unified) energy information labeling, and voluntary energy efficiency labeling. In August of 1999, China formally launched the label, awarding the first one to refrigerators. These ideas must be transferred to the building material industry to give the necessary instruction and incentive to supply certified, quality insulation, windows, and other products.

Home To Canadians

Making solar energy pay Solar energy is a subject that often comes up. According to BC Hydro, the average B.C. household uses 122.2 kilowatts of energy per day, making the family home one of the premier energy users. There are two options when it comes to solar energy. Photovoltaic, which converts solar energy into electricity and solar hot-water heat that harnesses solar energy to heat only the water used in the home.


Green Empowerment finances microhydro power projects & other renewable energy projects in the third world. We are continuing the work of Ben Linder in Nicaragua & working with indigenous groups in the Philippines & Borneo. Volunteers needed to work on projects in developing countries. Solar On-Line Internet-based courses. Revolving basis, year-round. PV Technology & Opportunities PV Systems Design Basics PV Systems Design Professional Solar Homes Healthy Buildings Solar Energy for Global Development. SoL, PO Box 217, Carbondale, CO 81623 Fax 559-751-2001 SoL

Floor Finishes

The concrete floor slab, representing a large thermal mass, could store solar energy during the day for release later at night. This would utilize excess solar energy at night that otherwise would not be harnessed, and could help to reduce peak heating loads late at night. However, heat transfer to and from the slab could be hampered by the use of insulating finishing materials such as carpet or woods, as shown in Figure 17. Though the heating rate from the floor was substantially improved when the slab was very thick, the consequent increased construction costs and materials did not justify the benefits.

Cq Home Power Hams

Solar Energy Research Institute (SERI) Another one of SERI's partnership efforts is paying off. The biggest news in solar cell research this year, according to Jack Stone, Director of Solar Electric Research at SERI, is ARCO Solar's new low-cost 1 square foot solar panel. Fabricated of copper-indium-diselenide (CIS), the new panel converts 11.1 percent of the sun's energy into electricity, a 30 percent increase in prior performance levels.


Features affecting the energy use of a typical residential unit. These energy simulations were created using the DOE-2 building energy simulation program (AEC 2006). The program performed a dynamic energy balance at each hour of the simulation period, accounting for heat flows across the building's exterior surfaces, heat gains from solar energy, lights and equipment, and heat storage in the building structure. It computed indoor temperatures when the building was not conditioned, and heating or cooling loads when equipment was used to maintain aspecified indoortemperature.Simulations took into account the building geometry, equipment, materials, surroundings, occupants, and other details that affect energy usage. These simulations were performed using natural ventilation with airflow of five to ten air changes per hour (ACH) air-conditioning was used to maintain comfort conditions when natural ventilation was not sufficient. In the CFD studies presented later in this case study, the...

Solar insulation

Non-transparent materials like cardboard structures or mineral wool can also be used in wall constructions for utilization of solar gains, when covered with a glazing instead of an opaque construction, see Figure 2.4.2. The efficiency of these systems is certainly rather low. The intention here is not to convert the wall into a solar collector but to use the solar gains to reduce the heat losses further down towards approaching the zero energy balance over the heating season. The absorbed solar energy is used mainly to raise the average temperature of the outer shell to the interior temperature level thus bringing down the average temperature gradient over the heating season. There will be no solar heating, but the insulation level will be increased without using too large material thickness.

Solar wall heating

With a transparent insulation element covering the outside of a massive wall, this part of the building can be converted to a solar wall heating area. Solar energy is converted to heat at the absorber and conducted with a phase delay of some hours - depending on thickness and building material -through the massive wall into the interior. This is the reason why windows and solar wall heating with transparent insulation fit very well together the solar gains of a south-oriented solar wall reach the room mainly at night time and thus extend the period with passive solar heating considerably.

And More

AstroPower is the world's leading independent PV company. We are supported by shareholders who believe in the future of solar power, not by fossil fuel or nuclear power interests. All of our products are made from silicon -abundant and non-toxic. Our unique process of recycling silicon wafers from the computer chip industry enables us to manufacture high quality solar cells

Upcoming Events

Led Solar Outdoor Underground

Solar Power International Solar Electric Power Association and Solar Energy Industries Association From 1 30 p.m. to 5 30 p.m., tours are available with a focus on the following topics Downtown Phoenix Sustainable Tempe Arizona State University Tempe Campus Higher Education and Infrastructure in the East Valley North Scottsdale Heritage K-12 Education in the West Valley Metropolitan Offices Phoenix Convention Center in Motion Solar Energy and Scottsdale Residential Green Building Program.


The objective of the project was to build houses that are affordable for young families. Therefore, the houses were targeted to cost between 180,000 and 235,000 Euros (including VAT and the building site). The ministries in North Rhine-Westphalia coordinated their subsidy programmes for solar energy housing estates. As a result, photovoltaic and solar thermal systems were subsidized. The local energy utility also supported the solar systems.

System Operation

John and Anita are their own power company. They both watch their battery voltage and electrical consumption like hawks Generating their own electricity has taught them the lessons of conservation and energy management. They are looking forward to completing their system by adding more PVs and more batteries. Four more PV modules will make them almost totally solar powered. This will reduce their operating expenses and allow them to use more energy. Anita has a washing machine on the back porch that she's giving the eye. Since the data was collected for this report, John has moved his refrigerator freezer. This move from the warm kitchen to the much colder back bedroom has cut John's wintertime power consumption by about 40 . One such details the success or failure of AE systems rest.

Power Sources

The Pryors use two energy sources- photovoltaics and a homemade 12 VDC gasoline engine generator. The computer specified eight PV panels, each 48 Watts, for this system. However, finances forced John and Anita to make do with only four 48 Watt Kyocera photovoltaic modules. These 4 modules produce about 950 Watt-hours of energy on an average sunny day at John & Anita's location. This makes their system about 47 solar powered. One of the nice things about PVs is their expandability. John and Anita can add more panels to their system whenever they wish. The cost of the four Kyocera PV modules was 1,400.

More Power NOW

Portable Solar Power System 32 watt solar panel (UNI-SOLAR amorphous silicon) The NOMAD 600 can use up to 3 solar panels to decrease charge time - 42 and 50 watt panels are also available. Multiple recharging options -- from the solar panel, utility power, a vehicle or a generator.

I3 The technologies

As mentioned at the beginning of this chapter, the first objective is to ensure that the heat inside remains inside during the heating season, and that the heat outside stays outside during summer. This is the job of the envelope. For comfort and energy reasons, the envelope must be air tight, so the next job is to guarantee a supply of fresh air - hence, a ventilation system is needed. The third job is to produce and distribute the small amounts of heat still required for space and water heating. The final job is to supply the electricity. As with building heating, the first objective is to minimize the need for electricity. According to the budget of the client, electricity can then be produced from solar energy.

Exemplary buildings

The row houses in Gelsenkirchen, Germany, provided an ideal field laboratory to examine how effective different constructions and design are in achieving high performance. Of interest here was not just the energy consumed over the operational life of the buildings, but also energy consumption over the whole life cycle, from construction through 50 anticipated years of service to demolition at the end. It was also interesting to see what proportion the infrastructure (streets and utilities) make of the total energy picture of a community. The project also served as a demonstration project, promising the transition from a coal and heavy industry economy and fossil fuel dependency to a new era based on solar energy. This was one of the first of an ambitious state programme to build 50 solar communities.

Power Consumption

A schematic of Roger & Ana's Renewable Energy System. On the left side of the heavy vertical grey line are 120 or 240 vac circuits. On the right side of the heavy vertical grey line are 12 VDC circuits. The illustration is divided into four levels by the heavy horizontal lines. The top level is Power Sources, the next level down Power Conversion & Control, the next Power Storage, and finally Power Consumption. Roger and Ana's system is basically solar powered. They produce about 2,500 Watt-hours from the tracked PV array on a sunny day. They store about 5 days worth of energy in their battery pack. The PV array's almost daily production stretches the time between engine generator battery recharging to over 16 days on the average. Most of the only 300 hours per YEAR of generator operation happens during the winter's cloudy periods. This system will not require starting the generator at all during the summer. All cost and operating figures (like kWh) for this system are...


April 21, '01 Columbia Gorge Earth Day, Renewable Energy Fair, Earth Day Run downtown, Hood River electric cars, electric bikes, hybrid cars, & other enviro info Columbia Gorge Earth Network, PO Box 276, Hood River, OR 97031 earthnetwork July 28-29, '01 John Day, OR. SolWest Renewable Energy Fair. Over 80 exhibits, demonstrations, workshops, & Tour de John Day electrathon race. See above for EORenew access.

Powerful Speakers

Rural Renewable Energy Alliance helping folks make sustainable choices for the future. Rural Renewable Energy Alliance helping folks make sustainable choices for the future. Just a short bus ride away from the fair, near the town of Custer, is a living example of sustainable living ethics. ReNew the Earth Institute (REI) is the Midwest Renewable Energy Association's (MREA) showcase of many RE technologies. Tours to REI were included in the solar home tours that departed from the fair each day. Visitors saw renewable energy in action The fair experience did not fall short of my expectations. I won't think twice about making the pilgrimage from Oregon to Wisconsin again next year. My experience was informative, fun, challenging, and entertaining. If you didn't get a chance to attend the 12th annual Renewable Energy and Sustainable Living Fair, I recommend that you come and check it out for yourself next year. Midwest Renewable Energy Association, 7558 Deer Rd., Custer, WI 54423...

No Power No Problem

There is more to a working renewable energy system than a cheap deal on a pile of hardware. Complete service.We do solar, wind, microhydro and pumping systems. Load analysis, site survey, system design, sales, installation, user training, and tech support long after the warranties expire. We live on renewable energy, have 20 years of experience, and have established over 500 systems. We specialize in NEC compliant, safe systems that will make your Electrical Inspector smile


Alas, it has been reported that the end of the independent renewable energy (RE) installer is near. At least this is what I've been told by some of my PV industry colleagues. They delivered this message with conviction and earnestness, and I don't consider it an attack. Of course, they are wrong. There has been some angst regarding the future direction of Xantrex. These gestures (coupled with action) help dispel that. Though fuel cells may well be a significant future application for Xantrex technology, it's good to know that Xantrex is making a significant commitment to renewable energy applications today. PV is a reality, while small-sized fuel cells exist as prototypes only. In past issues, we have discussed the ongoing California Public Utilities Commission Order Instituting Rulemaking and Distributed Generation. As part of these proceedings, the PV industry has made a proposal called the Independent Clean Energy Tariff (ICE-T). The proposal would eliminate all standby charges,...

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Getting Started With Solar

Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.

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