moonwatcher13 posted a photo:
For over 25 years, the Greenhaven Press Opposing Viewpoints Series has developed and set the standard for current-issue studies. With more than 90 volumes covering nearly every controversial contemporary topic, Opposing Viewpoints is the leading source for libraries and classrooms in need of current-issue materials. Each title explores a specific issue by placing expert opinions [Read More...]
This wind turbine is quiet, bird friendly and can generate electricity in low wind speeds. That is because it funnels the wind into the center of the turbine.
The Aleko R4 Wind Generator Tower Kit supports wind generators, such as Aleko WG100, WG200, WG300, WG400, WG450, WG500, WG700, WG800, WG900 Wind Generator. Pole diameter: 2 inches (49mm). This all-weather tower kit is easy to assemble, and an excellent choice for almost any portable wind generator. Product Features Tower kit supports wind generators right [Read More...]
This is the Enercon E-126, the first wind turbine with 6 MW rated power, rotor diameter: 126m (413ft), hub height: 135m(450ft).
tigger11th posted a photo: Wind turbine generating electricity on blue sky.
The Sunforce 60012 7 Amp Charge Controller prevents overcharging and discharging of 12 Volt batteries. It is intended for use with 12 Volt solar panels and maintains 12 Volt batteries in a fully charged state. It can handle up to 7 amps of array current and up to 105 watts of solar power. The controller [Read More...]
Co-founder and VP, Kelly King, tells how a recycling project on Maui developed into a multi-million dollar business.
landscapelifescape: Forget Energy Star and LEED, Green Building is Passivhaus “It is hard to believe, but this “mountain hut” in Austria needs next to no heating; it is all done with body heat, cooking heat and passive solar heat. it is an example of a Passivhaus design, built to a standard developed by the Passivhaus [Read More...]