Tag:

EIA

Cleantech is a Bunch of Hot Air

While renewable energy often captures most of the cleantech headlines, if anyone doubts why energy efficiency must play a significant part in the cleantech effort – as significant, if not more so, than the role of renewable energy — just examine the energy flow graphic developed by McCall and Bassett and reprinted in the June edition of Technology Review. At least half of U.S. energy consumption goes to nothing more than creation of hot air through waste heat. And, when one realizes that much of the 13.9% of electricity output from power plants shown in the graphic also ends up as hot air from our computers, lights, etc., the portion of energy consumption going up in hot air is actually greater than 50%.

Couple this with the following facts… According to the Energy Information Administration (EIA), on a worldwide basis renewable energy currently supplies roughly 10% of the energy consumed.

07/01/2010 1 comment

Renewable Energy

Global Energy Forecast Foresees Large Jump in Demand by 2030

written by Ceylan Thomson

Worldwide demand for energy will increase by 44 percent in the next 20 years, with developing economies – particularly those in China, India, Brazil, and Russia – accounting for nearly 75 percent of the demand growth, according to a forecast from the U.S. Energy Information Administration (EIA). The agency predicts that oil will supply about 32 percent of the world’s energy needs by 2030 – down from about 36 percent today – and that wind and solar power will account for 11 percent of global energy supplies.