Hydroelectricity is the world’s largest—and cleanest—source of renewable -energy. But despite lively interest in renewables generally, there is an information vacuum about the smallest version of the technology dubbed “the simplest, most reliable and least expensive way to generate power off grid.” Highly illustrated and practical, Microhydro is the first complete book on the topic [More]

The cold water circulates through your existing pool pump filter and into the panels while the circulating water is heated by the sun. As the water is pumped through the solar heating panels, the warmed water returns to the pool through the return hose. Product Features Has three 1-Foot by 10-Foot panels Could increase your [More]

Harness the Power of the Sun to Heat your Pool The Solara pool heating system uses polymeric glazed insulation panels to create greenhouse effect to trap heat and raise pool water temperature by up to 10 degrees! Proprietary Technology Revolutionary core design generates more heat with a smaller panel for above ground pools Simple Installation [More]

TS5 SOLAR DC CIRCULATION PUMP Application The TS5 solar DC pump can be used for most circulation pump applications without connection to the power grid. Highly efficient, the TS5 can be connected directly to a photovoltaic panel and is characterized by its small size, high efficiency, and extreme low power consumption. The long life brushless [More]

This vertical version of ALEKO brand wind generator can be used around the home, farm, boat, business, or anywhere else where the power is needed. This is a great working conversation piece to show the potential of what can be done with renewable energy today. Not only is it perfect for battery maintenance, it can [More]

. Product Features Note: this is the polymer version shown in our photos. Bare bones inexpensive turbine lets you experiment for almost nothing. we use 100% recycled packaging right out of the dumpster at the local post office 🙂 Comes in white, black and yellow depending upon what colors we are making at the time [More]

Electrical Specifications Optimum Operating Voltage (Vmp): 18.9V Optimum Operating Current (Imp): 5.29 A Open – Circuit Voltage (Voc): 22.5 V Short- Circuit Current (Isc): 5.75 A Maximum Power at STC: 100 W Operating Module Temperature: -40°C to + 90°C Maximum System Voltage: 600 V DC (UL) / 1000 V DC (IEC) Maximum Series Fuse Rating: [More]

This durable 20×40 foot rectangular in-ground solar blanket is made to give you maximum heating and insulation properties, combined with long life. This 12-mil blanket is loaded with thermal bubbles that retain heat at night and on cloudy cool days. The transparent blue color helps ensure that the sun’s heating rays are reaching your pool [More]

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. [More]