- 21st Century Solar
 - Offers solar products for auto, home, and small electronic devices, including panels, battery chargers, lanterns, radios, and more. - AAA Solar Service and Supply Inc.
- Advanced Energy Group
- Offers solar power assistance and support with a complete line of solar power panels and equipment from leading manufacturers.
- AJL Solar Electric
- Offers a variety of solar panels, inverters, battery chargers, and more.
- Akeena Solar
- Provides solar power and renewable energy services including energy audits, conservation, backup electric power, photovoltaic information, and financing.
- American Photovoltaics & Homes, Ltd.
- Offers solar electric products and systems.
- Apex Solar
- Solar energy power company. Designs solar power systems for commercial and residential customers.
- Apricus Solar
- Produces solar water heaters for household, swimming pool, spa, and floor heating.
- Arabian Solar Energy & Technology Co. - Cairo, Egypt
- Solar energy (photovoltaics) products, design, sales, projects.
- Arcon Solvarme A/S
- Manufacturer of solar heating systems from large plants to domestic systems.
- ARISE Technologies Corporation
- Offers remote powered and portable solar energy systems, computerized temperature and humidity probes, and more.
- ATON Solar Systems
- Offers domestic and commercial systems.
- Backwards to the Future Solar Energy Systems
- Supplier and contractor installer of vacuum tube heat pipe technology.
- Backwoods Solar Electric Systems
- Variety of products for creating a solar-powered home.
- BCN Cambra Logica Projectes SL - Barcelona, Spain
- Sustainable and efficient architecture. Solar and environmental engineering.
- Becosolar
- Distributors for Solarex, manufacturers of premium quality poly-crystalline and amorphous silicon solar electric (photovoltaic) modules.
- Bella Energy
- Residential and commercial solar electric power for systems both on and off the grid. Bella Energy installs sophisticated state of art systems and provides solar electric system design and consultation.
- Big Frog Mountain
- Manufacturer of solar panels, wind generators, inverters, batteries, and other renewable energy equipment.
- Blue Sky Energy
- Manufactures and sells battery chargers, converters, solar controllers, and solar panel inverters for RVs, boats, and homes.
- Bogart Engineering
- Manufacturers the TriMetric battery monitor to measure volts, amps, and usage for solar electric, Caravan, and boat systems. Specifications available for download.
- BP Solar
- International solar system design and installation services from BP Solar.
- CalFinder Residential Solar Power Contractors
- Contractors for installing solar panels and systems in residential homes.
- Canrom Photovoltaics
- Manufacturer and distributor of solar cells, modules, and photovoltaic systems for home, marine, and industrial uses.
- CIS Solar
- Makes rigid and flexible PV cells using electrodeposition of CIS materials.
- Colorado Solar Electric
- Specialises in renewable energy components and complete systems.
- Conserval Engineering - Downsview, Ontario, Canada
- Produces Solarwall, a way to heat large buildings and to dry crops, and manufactures humidification systems. Office locations in Downsview, ON and Buffalo, NY.
- Dankoff Solar Products
- Wholesale distributors of photovoltaic system components, and manufacturers and importers of solar water pumps.
- Deluge, Inc
- Offers thermal hydraulic engines to replace electric motors, steam turbines, and other engines in any application.
- Divpower
- Importer, distributor, and designer of photovoltaic systems and products.
- dmsolar
- Supplier of solar energy products. dmsolar carries high-efficiency photovoltaic (PV) cells, solar panels, solar modules, and integrated solar power kits.
- Eagle-1 Manufacturing
- Manufacturer of solar powered lighting and water distribution systems as well as agricultural/pest control sprayers.
- EcoSystems
- Develops, promotes and markets technologies and products that use solar energy. Also information on sustainable living and petroleum issues.
- Effective Solar Products
- Authorised distributor of BP Solar, Inc. products. specialised in supplying packaged systems.
- EnergoSolar SA
- Dedicated to the development of renewable energy solutions for the mass market including solar thin-film module production lines and turn-key solar solutions.
- Energy Enterprises, Inc.
- Offering renewable solar clean energy systems and options.
- Energy Matters
- Specialises in grid connected solar energy equipment, including panels, regulators, inverters, cables, batteries, appliances, and more.
- Energy Service Co., The
- Design, sales, and installation of solar energy equipment and systems.
 Enolar Systems Marketing
- Manufactures water heaters, cookers, and lightings.- Entech Engineering, Inc.
- Providing photovoltaic and solar design and consulting services to residential, commercial, industrial and municipal customers.
- Environmental Power Company
- Provides commercial and residential renewable energy system design, sales, and installation featuring online sales of solar panels, inverters, and batteries.
- Environmental Solar Systems
- Manufacturer of solar coffee bean dryers, food and vegetable dehydrators, water and air heaters, photovoltaic installations, sunrooms, and other solar products.
- Ericson Solar
- Providing custom design and installation of photovoltaic systems in Northern California and sales of components.
- ETA Engineering, Inc.
- Offers renewable energy systems design and distribution specialising in solar modules, inverters, and photovoltaic charge regulators.
- Evergreen Solar
- Developer and manufacturer of photovoltaic modules used in remote power and emerging grid-connected markets.
- G-teK
- Develops photovoltaics projects and solar energy systems ( zero emission ) for civil and industrial power applications.
- GE Power
- Develops solar electric power products based on crystalline silicon. Offers photovoltaic cells, solar modules, and complete packages for residential, commerical, and industrial systems.
- GO Solar Company
- Design, installation, and service of solar electrical and heating equipment.
- Green Energy Solutions
- Offers renewable energy products, including green energy books, solar panels, lights, landscaping products, fountains, chargers, and more. Also hosts Green University, a multimedia learning centre for renewable energy.
- Harmony Solar
- Providing design, installation, and maintenance for passive solar and solar electric arrays.
- Helioakmi S.A.
- Manufacturers and exporters of solar energy systems, solar water heaters, solar pool heating, and forced circulation systems.
- Home Solar Power Systems
- Directory of solar power and solar energy companies that supply solar products worldwide.
- Horizon Industries
- Installs and services solar domestic hot water, solar pool heating, and solar electric systems for residential and commercial customers in San Diego County.
- Intersolar Group Ltd
- Manufactures and markets thin film silicon solar modules, supplies solar generators, and solar powered consumer products.
- John Drake Services, Inc.
- Sells and buys solar photovoltaic systems and components.
- Konarka Technologies
- Developers of versatile, affordable photovoltaic products based on the dye-sensitized solar cell, a new technology for low temperature sintering of titanium dioxide.
- Kyocera Solar
- Network of solar energy companies answering the growing worldwide demand for reliable, economical, solar-generated electrical power.
- Microsolar
- Manufacturer and exporter of multivalve solar water heating systems and solar panels for residential and industrial applications.
- Morningstar Corporation
- Photovoltaic controllers.
- Mr Solar (Australia)
- Advice, design, installation, and service solution for renewable energy systems. Also provides information, products and services about the aspects of renewable energy resources.
- Mr. Solar
- Specialises in renewable energy products including solar panels, batteries, solar kits, and other items.
- Nanosolar
- Developer of proprietary technology that makes it possible to simply roll-print solar cells that require only 1/100th as thick an absorber as a silicon-wafer cell, yet with similar perfomance and durability.
- Northern Arizona Wind & Sun
- Offers solar electric panels and photovoltaic systems as well as components for remote power, solar water pumping, and grid tie.
- Occidental Power
- Design, installation, sales, and service of solar thermal, photovoltaic, and cogeneration systems.
- OkSolar
- Manufacturer of advanced renewable energy systems for commercial and residential use.
- OY Not Solar
- Design, installation, and service of solar electric systems for homes and small business. Based in Arkansas.
- Pacific Energy Company
- Supplying San Luis Obispo with clean burning stoves, fireplaces, solar energy equipment, and more.
- Pacific Solar
- Developing affordable solar photovoltaic systems for a world market.
- Photovoltaics.com
- Buy and sell used, broken and new solar cells and panels.
- Plastecs
- Offers a selection of crystalline solar cells and panels cut to size. Features a photovoltaic and fibre optic educational kits.
- PyronSolar
- Designers of a photovoltaic powerplant concept using optical tracking to maximize energy conversion.
- Remote Power International
- Provides renewable energy to assist in conservation for the world¿s parks and preserves.
- RV Solar
- Suppliers solar battery charging systems for the caravan industry.
- Sea Solar Power International
- Has designed a system to harness the solar energy from the tropical oceans to generate electricity.
- Shell Solar
- Manufacturer of solar modules.
- Shenzhen Smart Sun Technology Co., Ltd.
- Manufactures solar power products, including garden lighting, battery chargers, flashlights, traffic lights, fan caps, toys, and more.
- Shenzhen Xinji Industrial Co., Ltd.
- Manufacturers of solar power chargers, solar cell phone chargers, solar air purifiers, waterproof LCD flashing key chains, and solar panels.
- Sierra Solar Systems
- Engineers solar electric and solar pumping systems worldwide.
- Signet Solar
- Signet Solar designs, develops, and manufactures thin film, photovoltaic (PV) solar panels and modules for solar farms, commercial solar installations, and building integrated solar photovoltaics (BIPV) and remote habitation.
- Silicon Solar
- Manufactures solar cells and panels, as well as battery chargers, rechargeable batteries, and solar kits.
- Simpler Solar Systems
- Sirius Solar
- Sells renewable energy products, including flash lights, lanterns, jump-start systems, laundry accessories, pumps and aquatic systems, birdbaths, fountains, garden accents, lighting, and more.
- Solar Cell Sales
- Offers solar panels, cells, wind turbines, inverters, batteries, and charge controllers.
- Solar Cells Limited
- Provides solar cells and rechargeable batteries along with distribution of solar panels and kits.
- Solar Electric Specialties
- Manufacturer of integrated photovoltaic power systems and wholesale distributor of photovoltaic modules and system components.
- Solar Energy Limited
- Devoted to the development of high-tech solutions to the world's energy problems by utilizing the power of the sun.
- Solar Light Company - Philadelphia, PA
- Manufactures radiation measuring instrumentation for the entire spectrum, from UV to IR, as well as ultraviolet radiation sources.
- Solar Outdoor Lighting, Inc. (SOL)
- Manufactures industrial grade solar lighting systems for a range of outdoor applications including streets, car parks, parks, billboards, and rural areas.
- Solar Panels for Energy
- Sells solar panels, cells, and supporting energy equipment.
- Solar Panels Plus
- Offers nationwide wholesale, retail sales, and installation of solar products. Includes solar hot water heaters, solar air conditioning systems, and solar electric PV panels.
- Solar Services
- Solar energy products for home, pool, office and Caravan.
- Solar Solutions
- Solar education kits to teach children about solar energy.
- Solar Source
- Distributorship for the Tampa Bay area.
- Solar Storefront
- Sells solar-powered products for the home, garden, and car, including portable panels, emergency preparedness products, solar kits for kids, and more.
- Solar Water Technologies Inc.
- Manufacturer and distributor of solar powered water pumps and related renewable energy technologies.
- Solar-Tec Systems
- A solar energy contractor that designs, installs, and supplies solar electric (PV) power systems, solar pool heating systems, hot water, and home heating systems.
- SolarAttic, Inc.
- Sells a pool heater that uses hot attic air to heat your swimming pool.
- Solardepot.com
- Wholesale distributor of solectrogen solar electric generators and related solar thermal systems and products.
- Solardyne
- Supplies solar PV modules and systems as well as wind generators, power conditioning equipment, and system integration and water pumping systems.
- Solarpath Energy Systems
- Offers solar panels, pv, modules, and generators, and wind generators and turbines.
- SolarSense.com
- Offers portable solar energy systems, including battery charging systems, panels, inverters, and charge controllers.
- Solarworks
- Offering alternative and renewable energy products.
- solterra SA
- Manufacturer of solar cells.
- SOLutions in Solar Electricity
- PV systems.
- Southwest Photovoltaic Systems
- Supplier of solar electric products and systems.
- Spire Corporation
- Develops highly-engineered photovoltaic module manufacturing equipment and provides advanced surface treatments for the biomedical industry.
- Standard Engineering Company
- Manufactures and exports solar water heaters.
- Sterling Solar Power
- Offers an engine that converts heated refrigerant vapor into power.
- Sun Trapper Solar
- Patented solar water heaters composed of stainless steel and titanium manufactured for residential and commercial needs.
- Sun-Mate Corporation
- Specialising in solar-powered consumer products such as radios, hats, and battery chargers, as well as solar panel, cells, and Bill Nye the Science Guy kits.
- Sundance Solar
- Offers solar products including battery chargers, educational kits, radios, panels, and lighting, as well as rechargeable batteries.
- Sunelco
- Solar electric products distributor and systems intigrator. Specialising in alternative energy for remote homes and livestock water pumping.
- Sunlight Solar Systems
- Solar batteries, panels, and controlers.
- SunPower Corporation
- Makers of silicon solar cells for concentrator, race cars, aeroplanes, and space applications.
- Sunpower Systems
- Manufactures and markets fully integrated solar charged cellular phone batteries.
- SunQest, Inc.
- Manufacture and distribute solar collectors of all shapes and sizes.
- Sunsearch Solar Systems
- Sunsearch installs and services solar energy systems for residential and commercial customers throughout the Northeast U.S. Get an online quote.
- Suntech Solar Technology Co., Ltd.
- Manufactures DIY solar hot water heating systems, circulation& temperature control devices, and solar battery sets.
- SunWize Technologies, Inc.
- Develops, manufactures, and markets photovoltaic power products and systems providing renewable, wireless, clean, solar power generation.
- Surry Solar Services
- Repairs all types of solar systems, differential controllers, pumps, and leaking solar tanks. Also offers a solar domestic hot water system.
- Suryodaya Hi-Tech Engineering
- Manufacturer of solar water heating systems.
- Thermo Dynamics Ltd.
- Manufacturers of solar products, including collectors and water heating systems.
- Thermomax
- Dedicted to the latest innovative solar technologies, services, solar controllers, energy monitors, evacuated heat pipe solar collectors, and related components.
- Togo Technology Co., Ltd.
- Solar manufacturer specialising in solar lights, panels, energy systems, chargers, and other solar products.
- Transsolar Energietechnik GmbH - Germany
- Leistungsspektrum-Auszug: Entwurfsberatung für Architekten bezüglich des Energiekonzepts und einer Niedrigenergiebauweise-Wärme, Kälte, Strom.
- Westerncanadian Solar Distributors
- Offers a full range of solar panels and parts.
- Wuseltronik - Berlin, Germany
- Focuses on research and development in renewable energy resources.
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