Title: Guide to Renewable Energy Author: Office of Energy Efficiency and Renewable Energy Subject: Learn about using renewable energy sources such as geothermal heat pumps, solar systems, and wind turbines to save energy and utility costs.
Solar Energy: The Ultimate Renewable Resource a well-designed passive solar home can reduce energy bills by 75% with an added construction cost of only 5-10%. Active System Heating Water—Last Thoughts Efficiency of solar heating system is always less than 100% because:
Small Wind Electric Systems 3 Is Wind Energy Practical for Me? A small wind energy system can provide you with a practical and economical source of electricity if: