Using fluctuating wind power
Incorporating wind power into existing power grids is challenging because fluctuating wind speed and direction means turbines generate power inconsistently. Coupled with customers' varying power demand, many ...
Solar and wind energy may stabilise the power grid
(Phys.org)—Renewable energies such as wind, sun and biogas are set to become increasingly important in generating electricity. If increasing numbers of wind turbines and photovoltaic systems feed electrical ...
Circadian clock's rhythm ensures steady energy supply to cells during times of fasting
Each of our cells has an energy furnace, and it is called a mitochondrion. A Northwestern University-led research team now has identified a new mode of timekeeping that involves priming the cell's furnace to properly use ...
Hydroelectric generator can be carried like a backpack
New highly efficient thermoelectronic generator
Through a process known as thermionic conversion, heat energy—such as light from the sun or heat from burned fossil fuels—can be converted into electricity with very high efficiency. Because of its promise, ...
Hydrokinetic proposal for Mississippi river
Capturing wasted electricity with triboelectric generators
(Phys.org) —With one stomp of his foot, Zhong Lin Wang illuminates a thousand LED bulbs – with no batteries or power cord. The current comes from essentially the same source as that tiny spark that jumps ...
Energy supply from hydropower projects depends on rainforest conservation
Research published in the Proceedings of the National Academy of Sciences shows that conserving rainforests in the Amazon River Basin will increase the amount of electricity that hydropower projects in the area can produc ...
Power from down under
Grants recently awarded to MIT researchers by the U.S. Department of Energy (DoE) could help to pave the way for a method of generating electricity that produces no greenhouse gas emissions, and that could ...
A storage power plant on the seabed
Norwegian research scientists will contribute to realising the concept of storing electricity at the bottom of the sea. The energy will be stored with the help of high water pressure.
Techniques for the manipulation of matter at the nano scale: New insights on 3-D printing
(Phys.org)—Techniques for the manipulation of matter at the nano scale are a step further ahead with the publication of new results from a UTS research group.
Fully renewable electricity could be competitive
(Phys.org) —A carbon price of between $50 and $100 per tonne of carbon dioxide would make coal-fired and gas-fired power less economical than renewable electricity, a UNSW study shows.
US carbon emissions in surprise drop
US emissions of carbon dioxide blamed for climate change fell in 2011 and have slipped to a 20-year low this year as the the world's largest economy uses more natural gas and less coal, data shows.