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Tel (305) 536-9917 Fax (305) 371-2353 E-mail info sunelec.com Web www.sunelec.com Wood energy is the black sheep of the renewable energy family. Of all the renewable options, it causes environmentalists the most discomfort. Mostly they worry that burning wood means making a lot of smoke pollution and cutting down precious trees for fuel. Besides, woodstoves are not as technologically sexy as glittering solar panels and whirling wind turbines. As one anti-wood burning activist said at a public...

Powering Your Future

Winter Production in Pennsylvania without A rainbow over Steve and Carol's solar powered greenhouse marks their pot of gold sustainable food production. A rainbow over Steve and Carol's solar powered greenhouse marks their pot of gold sustainable food production. Thirty years ago, we started farming as a family with the principles of organic agriculture and limited fossil fuel use. This ethic stemmed both from our concern for the environment and from our interest in self-sufficiency. We used...

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11.2 mph 5 m s Average Wind Speed at Hub Height, Rayliegh Distribution. Based on manufacturer's published power curves. 2001 Priestley Ave. Norman, OK 73069 T 405-364-4212 F 405-364-2078 sales bergey.com www.bergey.com The shock to owners of most grid-tied PV systems comes when the power goes out. Many homeowners are shocked to discover that when the grid goes down, their grid-tied inverter goes right down with it. And even owners of systems with battery backup are finding that, although these...

Sharp

2003 Sharp Electronics Corporation. 2003 Sharp Electronics Corporation. Build your business with Sharp, the world leader in solar technology. When you install Sharp Solar, you offer your customers the enlightened home energy choice. Sharp's new fully integrated residential system includes photovoltaic modules, inverters, trim, mounting hardware and wiring all designed to work together. The Sunvista inverter allows you to blend power from up to three input strings, each varying by number, model...

Thermoelectric Generator

After the boiler is fired up, the water rises naturally into the generator, which is directly connected to a small centrifugal pump, such as an El-Sid from Ivan Labs. In 2 to 5 minutes, enough water has risen to the thermoelectric generator to exceed the starting voltage of the pump. As it starts pumping, more hot water reaches the generator and the voltage rises. Suddenly, there is vigorous pumping in the system and the heat spreads quickly to the radiators. A small, 3.5 watt...

From the Ground Up

Earthbag Trench

2004 Rachel Ware amp Laurie Stone This straw bale building creates a warm, quiet, nurturing environment for kindergarten students at the Waldorf School in Colorado's Roaring Fork Valley. Many people, especially Home Power readers, think about the energy they use in their home. But how many people think about the energy that goes into the materials of the home itself Embodied energy, the energy consumed by harvesting, transporting, manufacturing, and disposal of materials, can be very high in...