Geothermal Heat Extraction Process Takes Advantage of New Liquid

Scientists at the Department of Energy's Pacific Northwest National Laboratory have come up with an innovative approach that can safely and economically extract and convert heat from untapped geothermal resources. The heat recovery method makes the most of low-temperature “hot rock” resources.

Posted in: Videos, Geothermal Power, Renewable Energy, Energy, News, GDM


$32 Million Initiative to Expand Hydropower

U.S. Department of Energy Secretary Steven Chu announced up to $32 million in Recovery Act funding, which is designed to support the deployment of hydropower turbines and control technologies to increase power generation and environmental stewardship at existing non-Federal hydroelectric facilities.

Posted in: Renewable Energy, Energy, Hydroelectric Power, Government Initiatives, Government, Articles, News, GDM


Virtually Engineering Energy Conversion Plants

Photovoltaic and wind energy plants, hydroelectric power stations, and biogas plants can be complex to design and maintain. In designing a hydroelectric power station, an engineer needs to know what the pressures, temperatures, and fluid flows will be in the facility. Virtual reality makes planning and operation easier.

Posted in: Biomass, Solar Power, Wind Power, Renewable Energy, Energy, Hydroelectric Power, News, GDM


Quantum-Well Thermophotovoltaic Cells

Thermophotovoltaic cells containing multiple quantum wells have been invented as improved means of conversion of thermal to electrical energy. These cells are expected to be especially useful for extracting electrical energy from combustion, waste-heat, and nuclear sources. Conversion efficiencies more than twice those of prior cells are expected.

Posted in: Energy Efficiency, Thermoelectrics, Energy, Briefs, GDM


A Low-Cost Manufacturing Solution for CIGS-Based Solar Cells

Though the solar industry today predominately produces solar panels made from crystalline silicon, they remain relatively expensive to make. New players in the solar industry have instead been looking at panels that can harvest energy with CIGS (copper-indium-gallium-selenide) or CIGS-related materials.

Posted in: Solar Power, Renewable Energy, Energy, News, GDM


Measuring LED and Solid State Lighting Performance

Light emitting diodes (LEDs) and solid state lighting (SSL) products that incorporate LEDs pose many measurement challenges compared with other lighting elements, such as traditional tungsten and fluorescent. Advanced optical radiation measurement equipment and new techniques are often required to determine basic photometric and colorimetric parameters for LEDs and SSL products.

Posted in: Energy Efficiency, Energy, Lighting, Articles, Features, GDM


Advancing Technologies Harness the Power of Wind, Water, and the Sun

Renewable energy will be the world’s fastest-growing source of electricity generation over the next two decades, although it will still make up a relatively minor portion of the global energy supply, according to the Energy Information Administration. The majority of that increase will come from the use of wind power and water power, or hydropower.

Posted in: Solar Power, Wind Power, Renewable Energy, Energy, Hydroelectric Power, Articles, Features, GDM