On February 25, 2015, the U.S. Department of Energy (DOE) announced the third round of Strategic Technical Assistance Response Team (START) Renewable Energy Project Development Assistance that provides tribal governments and entities with support to produce clean and renewable energy. The START program was launched in December 2011 and has helped 21 tribal communities advance solar, wind, biofuels, and energy efficiency projects. The program is open to Indian Tribes, Alaska Native regional corporations, and formally organized tribal energy resource development organizations. Applications are due to the DOE Office of Indian Energy by May 1, 2015, and up to five projects will be selected by the end of June 2015.
Ellen Williams: The future of energy innovation
As director of the U.S. Advanced Research Projects Agency–Energy, Ellen Williams plays a pivotal role in cultivating and guiding energy technology discovery and development in the United States. Ensia recently invited Williams to share her views on what we should watch for in the wide world of energy innovation in the months and years to come. What in your mind is the most important energy innovation of the past year? The past decade? The country has made some incredible strides in energy over...
How to Increase Your Industrial Cooling Tower Efficiency
Although cooling towers are generally some of the most cost-effective cooling mechanisms as compared to other cooling technologies (such as many dry air cooling systems), it is still important to monitor your industrial cooling tower efficiency and run itas seamlessly as possible. This will ensure your facility can: Save energy Reduce the amount of water being consumed Decrease the amount of chemicals required for water treatment Extend the equipment service life Reduce operating costs, overall But how...
Wind power is about to get a whole lot cheaper
Wind energyis soaring around the world, thanks to technology advances and energy policies that have reduced its cost. And things are only going to get better — with prices dropping substantially by mid-century, according to a survey of 163 of the world’s leading wind energy experts. The results, published in the journal Nature Energy,suggest that the cost of electricity from wind could drop by 24–30 percent by 2030 relative to 2014 prices, and by 35–41 percent by 2050. The key driver of...
Environmental impacts of ocean-energy systems: a life-cycle assessment
Ocean-energy technologies — which harvest renewable energy from the sea — will have a significant role to play in a future low-carbon society. A recent life-cycle analysis of different ocean-energy devices has found that life-cycle environmental impacts are caused mainly by the materials used in the mooring, foundations and structures. Improving the efficiency and lifespan of the devices, as well as improving mooring and foundations and deploying devices further out at sea, will help to further reduce...
Does Wind Turbine Blade Length Really Matter?
Simply put: Longer wind turbine blade length means greater power production. Blades capture the wind which forces the rotation of the rotor; longer blades means more area for the wind to push against, which means greater force and rotational power. However, how much difference does blade length make overall, in comparison to other factors? There is a standard formula that can be used to apply the aerodynamic performance of the blade to the wind speed and the size of the blades. To calculate the amount of energy...