Solar power storage units reduce costs of the Energiewende
The increasing share of electricity based on solar and wind power results in an increasing load of distribution and transmission grids. At the 'Helmholtz Institute Ulm (HIU) for Electrochemical Energy Storage', ...
Green energy investments worldwide surge 17 percent to $270 billion in 2014
Global investments in renewable energy rebounded strongly last year, registering a solid 17% increase after two years of declines and brushing aside the challenge from sharply lower crude oil prices.
Solar beam collectors, key to enhancing solar power
New technologies could soon bring more effective ways of harvesting solar power. That is the case with small size concentrated solar power, or CSP. It is a relatively new technology compared to the more mature photovoltaic ...
Solar eclipse will test Germany's green power grid
Will next week's partial solar eclipse turn off the lights in Germany?
Bionic leaf: Researchers use bacteria to convert solar energy into liquid fuel
Harvesting sunlight is a trick plants mastered more than a billion years ago, using solar energy to feed themselves from the air and water around them in the process we know as photosynthesis.
Chances of saving with solar energy greater for Indiana farms than homes
The probability of saving money by using solar energy rather than standard grid electricity is 92 percent for Indiana farm businesses and about 50 percent for homes, Purdue University energy economists find.
Supercapacitors poised to help boost vehicle fuel efficiency
Unlike slow and steady batteries, supercapacitors gulp up energy rapidly and deliver it in fast, powerful jolts. A growing array of consumer products is benefiting from these energy-storage devices, reports Chemical & En ...
NREL reports examine economic trade-offs of owning versus leasing a solar photovoltaic system
Two new reports from the Energy Department's National Renewable Energy Laboratory (NREL) examine the economic options customers face when deciding how to finance commercial or residential solar energy systems. NREL analysts ...
How to make solar energy systems more widespread
Retrofitting existing buildings with adequate cutting-edge technologies is thought to guarantees spectacular energy savings, by about 50%. The objective of the EU funded project BRICKER is precisely to demonstrate such possibility. ...
Local market conditions and policies strongly influence solar PV pricing
Differences in local market conditions and policies, and other factors, particularly the size of the system, can lead to wide disparities in what consumers across the United States pay to install solar energy ...
Researchers convert sunlight to electricity with over 40 percent efficiency
UNSW Australia's solar researchers have converted over 40% of the sunlight hitting a solar system into electricity, the highest efficiency ever reported.
Matched 'hybrid' systems may hold key to wider use of renewable energy
The use of renewable energy in the United States could take a significant leap forward with improved storage technologies or more efforts to "match" different forms of alternative energy systems that provide ...
Swift mission observes mega flares from a mini star
On April 23, NASA's Swift satellite detected the strongest, hottest, and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star. The initial blast from this record-setting series ...
Idealistic Norwegian sun trappers
The typical Norwegian owner of a solar heating system is a resourceful man in his mid-fifties. He is technically skilled, interested in energy systems, and wants to save money and protect the environment.