Energy-Efficient Technology

Energy-Efficient Technology
"America's swelling thirst for oil is one of our leading economic and national security problems. We use a quarter of the world's petroleum, but have just three percent of known reserves. As a result, we're importing more than half the oil we use each day from some of the most unstable regions of the world- spending more than $20 billion each year on Persian Gulf oil alone" (Lashof and Hwang1).
There are effective technologies that can substantially reduce our need for foreign oil and help alleviate environmental harm. For instance, Photovoltaic energy, another term for solar energy, as well as wind power, are unlimited sources of energy that does not cause environmental harm, nor do they cost anything. Energy-efficient designed homes using renewable energy sources are demonstrated technologies that are readily available. In addition, the energy efficient designed buildings allow consumers to save money by improving the building layou...