Volt-Star Eco Charger with Apple Compatible Adapter for Cell Phone – White Completely shuts off to ZERO power when it senses your cell phone is charged for the maximum savings and benefits possible unlike lesser “Eco” branded chargers that only reduce their power draw during idle Saves energy when charging due to high efficiency exceeding [...]

Solar Engineering of Thermal Processes List Price: $150.00 Your Price: $75.97 … The updated, cornerstone engineering resource of solar energy theory and applications. Solar technologies already provide energy for heat, light, hot water, electricity, and cooling for homes, businesses, and industry. Because solar energy only accounts for one-tenth of a percent of primary energy demand, [...]