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• Featured Article Photovoltaic energy valuation model

  Photovoltaic Energy Valuation Model Sandia National Laboratories in collaboration with Solar Power Electric™ has developed PV ValueTM, an electronic form to... More »

• Featured Article Phosphor-Based White LEDs: Mixed Blessings?

  Light-emitting diodes use less energy and last longer than even compact fluorescent lights.This article, written by Angela Spivey*, appeared first in Environmental Health... More »

• Featured Article Light pollution

    Light pollution is the intrusion of unwanted or unneeded artificial light into a man-made or natural environment. A variety of somewhat separate phenomena comprise the... More »

• Featured Article Dark side of insulation

  Building insulation has become a modish activity in the western world since the 1980s. Considerable benefits can accrue in energy conservation, occupant comfort and reduction of... More »

Recently Updated

Green building Last Updated on 2012-09-28 at 14:17 Green building is the practice of increasing the efficiency with which buildings use resources — energy, water, and materials — thereby reducing a... More »

Kalina cycle Last Updated on 2012-09-04 at 11:34 The Kalina cycle is a technological approach of electric power production resulting in raising the efficiency of a thermal power station and reducing thus the fuel rate and... More »

Photovoltaic energy valuation model Last Updated on 2012-08-21 at 22:41 Photovoltaic Energy Valuation Model Sandia National Laboratories in collaboration with Solar Power Electric™ has developed PV ValueTM, an electronic form to... More »

Aluminum use in automobiles in the United States Last Updated on 2012-06-19 at 21:42 The U.S. Geological Survey estimated the quantity of aluminum stocks in use in the United States to be 142 million metric tons as of 2002. Stocks in use include the aluminum in... More »

Dark side of insulation Last Updated on 2012-05-17 at 02:07 Building insulation has become a modish activity in the western world since the 1980s. Considerable benefits can accrue in energy conservation, occupant comfort and reduction of... More »

Phosphor-Based White LEDs: Mixed Blessings? Last Updated on 2012-01-26 at 15:42 Light-emitting diodes use less energy and last longer than even compact fluorescent lights.This article, written by Angela Spivey*, appeared first in Environmental Health... More »

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