New York City has tripled its production of solar power by completing the installation of panels on 10 city-owned buildings, Mayor Michael Bloomberg said Monday.

Denmark has announced that by the end of this decade, it will produce a third of its energy from renewable sources - wind power, in particular, but also solar power and the burning of "biomass."

In remote parts of the vast state of Western Australia, photovoltaics are about to get more attractive for businesses and households.

Butterfly wings are not just beautiful. They are also sophisticated collectors of solar energy that help butterflies stay warm, and researchers say that their shinglelike structure could provide valuable clues into developing better solar technology.

Quickly running out of money, solar-project developer Solar Trust of America LLC filed for bankruptcy before it could finish a multibillion-dollar solar plant in California that was planned to generate electricity as one of the world's largest solar-power projects.

Shares of Q-Cells SE declined around 33% on Frankfurt's Xetra after the German weekly magazine Manager Magazin reported that the German solar cells maker may file for insolvency this week.

Japan's new feed-in tariff, implementation is anticipated to be July, is set to generate highly attractive returns, according to clean energy market research provider, Bloomberg Energy Finance.

A team from Massachusetts Institute of Technology (MIT) have developed a 3D solar module structure that can generate up to twenty times the electricity from a given area compared to normal solar panel layout.

President Obama traveled here to the Nevada desert Wednesday to highlight the future of solar energy - and ridicule Republicans for trimming back federal funding to develop it.

The solar industry in the U.S. has been holding its breath over a much-delayed review by the Commerce Department over allegedly unfair trade practices by Chinese solar panel makers.

President Obama touted solar energy as an "industry on the rise" and condemned Republican skeptics of this power source in his first stop on a nationwide energy tour.

Installations of solar panels will continue to increase strongly in Germany in the first six months of the year, government and industry sources told Reuters, dealing a blow to efforts by the ruling coalition to get the market under control.

Around 11,000 people gathered in Berlin on 5 March to protest against further cuts to the support for solar photovoltaics (PV) in Germany from April.

The federal government spent $24 billion on energy subsidies in 2011, with the vast majority going to renewable energy sources, according to a government report.