- ABS Alaskan
 - Alternative energy information and products, including solar, wind, and water power, as well as inverters, batteries, appliances, and accessories. - Advanced Alternatives Engineering Corporation
- Specialists in alternative heating and power generation.
- Advanced Service Corporation
- Provides services to the energy, chemical, built environment, and petrochemical industries.
- AirMarine Australia
- Provides wind and solar systems.
- Alternative Energy Store
- Offers solar panels, windmills, batteries, water pumps, inverters, and more.
- American Ref-Fuel
- Develops, owns and operates facilities which convert municipal solid waste into energy in the form of steam and electricity.
- Associated Power Ltd.
- Proposal for alternative energy system that uses gravity.
- Bitterroot Solar
- Offers solar, wind, and hydro power generation components and systems.
- Clean Edge
- Helps investors, industry, and society understand and profit from the clean-tech revolution. Site offers news, stock tracking, analysis, and more.
- Creative Energy Technologies
- Renewable energy products and supplies.
- Daedalus Informatics
- Wave energy industrial researcher and manufacturer. Hybrid wind and wave renewable energy technology. Desalinization, irrigation, nitrogen energy storage, and electricity production.
- de Montaigne Group, The
- Provides finance and consultancy services in projects that involve renewable energy, alternative energy, energy efficiency, sustainable design, and development. Site features brochure, joint venture partner details, and contact details.
- DonRowe.com
- Sells inverters for renewable power systems, trucks, and RVs.
- Dulas
- International suppliers of renewable energy products including solar, hydro, wind, and biomass products. Also offers consultancy services.
- DynaMotive Energy Systems
- Develops and commercializes energy systems based on fuels produced from biomass.
- EcoDirect
- Products include solar panels, wind turbines, and more.
- Energotech S.A.
- Specialises in research design and manufacturing of renewable energy systems such as wind, solar, and hydroelectric power.
- EnergyAnswers Corporation
- Designers, developers and operators of resource recovery plants and other energy and environmental facilities.
- Evans Engineering
- Maker of small water turbines, water wheels, and pumping systems which generate power, especially suitable for remote or rural needs. Offers informative overview of waterpower basics.
- Fillmore Fuels
- Online community for buyers, sellers, and users who are passionately seeking out renewable fuel options. Find auctions for renewable fuel, feedstock, vehicles, equipment, and motors.
- Generation Solar Renewable Energy Systems Inc.
- Design and sales company offers detailed articles on renewable energy for residential, commercial, agricultural, and recreational use.
- Genesis World Energy
- Develops a viable, abundant, low cost, and totally environmentally-friendly source of energy, capable of immediately eliminating the world's dependence on oil, gasoline, natural gas, coal, and nuclear energy.
- GreenEnergyChoice
- Order renewable energy service from GreenEnergyChoice.
- Greenworks Renewable Energy Solutions
- U.K. expert in solar heating panels, ground source heat pumps, underfloor heating, domestic wind turbines, condensing boilers, and rainwater harvesters.
- Inertialess Drive Technologies
- Develops various commercial products from rotor technology including, micro-hydro generators, magnetic fuel catalytic converter, and water treatment systems.
- Jetstream Power International
- Offers alternate energy (solar, wind, thermal, and manual power) products for water pumping, residential electricity, food cooking, and water heating.
- Maine Interfaith Power and Light
- Nonprofit organisation that brings Mainers and Maine organisations and businesses together to buy green electricity.
- Mainstay Energy
- Buys and sells green tags from small-scale renewable energy installations nationally.
- Matrix Energy Inc.
- Diversified renewable energy company providing energy efficient technologies, products, and information.
- National VegOil Board
- Organisation focused on spreading information and promoting the use of vegetable oil fuel made without chemical modifications.
- Nekolux Renewable Energy
- Designs and installs renewable energy systems.
- Notoco
- Presenting low energy heating and cooling units utilizing solar energy and heat pumps.
- Oasis Montana Inc.
- Alternative energy system designers using solar, wind, hydro, propane, and generators.
- OtherPower.com
- Offers resources, information, and store for home power enthusiasts, hobbyists, and experimentalists.
- Pacific Hydro Limited@
- Planet Earth Home
- Reference book by Mel Moench covering the construction of self-sufficient earthship homes that provide food and power, including solar, wind, recycling, and more.
- Rainbow Power Company
- Specialised manufacturer and distributor of renewable energy equipment. Site includes information about renewable energy including solar, wind, hydro, & biomass energies.
- Real Goods
- Source for knowledge, products, and tools for renewable energy and sustainable living.
- Renewable Energy Concepts Incorporated
- Specialising in wind and solar energy kits. Products include solar panels, wind turbines, inverters, and batteries.
- Renewable Energy Technologies (RENTEC)
- Offers biogas plant design and implementation.
- Solar Electric.com
- Information and equipment for generating electricity from solar photovoltaic, wind, and hydro power.
- SolarAccess.com
- Offers a business directory, auction, news, employment search, and more.
- Solartronic
- Design and supply of solar, wind, and small hydro energy systems.
- Solatron Technologies: Systems
- Offers bundled solar electric and wind generating systems for homes and businesses featuring in-house repair services and technical support.
- Solstice International L.L.C.
- Design, supply and installation of alternative energy systems.
- SolutionsForPower.com
- Provides and installs grid-tie, off-grid home power systems, back-up power, solar water pumping, and other energy efficient utilities.
- Source for Renewable Energy, The
- Locate renewable energy businesses and organisations by product type, business type, and geographic location.
- SunAmp Power
- Designs and supplies solar energy systems for the home.
- TenderLand Power Company
- Supplies deregulated electricity from renewable power facilities and other environmentally conscious producers.
- Tidal Electric, Inc.
- Electrical power generation using the oceans' tides as a power source.
- UPC Wind
- Specialises in wind farm development, ownership, and operation with projects in the Northeast, the West, and Hawaii.
- Vermont Solar Engineering
- Nationwide designer and supplier of renewable energy systems. Packages include solar electric, wind, and micro-hydro power, as well as solar domestic water heating.
- Vestas
- Specialises in development, manufacture, sale, marketing, and maintenance of wind power systems including wind turbines.
- WOW Energies
- Uses a revolutionary yet simple process to generate electricity from any heat source, without consuming fuel, while eliminating emissions.
- York Research
- Develops, constructs, owns, and operates electric power and thermal generation facilities fueled by natural gas, solar energy, and windpower.
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