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It rains year round in Germany. Clouds cover the skies for about two-thirds of all daylight hours. Yet the country has managed to become the world's leading solar power generator.

Spain -- the world's second leading producer of wind power -- has passed a new law allowing wind parks to be built off its coast. It is predicted that the offshore wind parks will generate between 2,000 and 3,000 megawatts (MW) of electricity by 2020.

Evaluating the potential of solar technologies This interactive offers a snapshot of the leading contenders in solar technology and evaluates the advantages and long-term economic potential of each-as well as the likely challenges ahead.

One of the UK's leading housebuilders, Miller Homes, claims to have built a zero carbon house as part of the effort to combat climate change. Zero carbon means no emissions of the global warming gas, carbon dioxide. Over the next few years the rules on how green homes have to be are going to become gradually tougher. And there are warnings that they will push up the cost of buying a new home.

About 63 percent of Indian IT shops have completed a retrofit of existing server rooms to increase energy efficiency, or have a pilot project underway, according to a recent study. It's similar in Brazil, but IT companies there tend to favor building new server rooms before modifying existing ones.

Although the use of solar power is gaining a more diverse following among U.S. electric utilities, the utilities that installed the most solar power in the past continue to lead the nation in installing new solar power capacity.

Gerhard stri-hipp speaks on the comparison of the incentive systems of the world leading solar markets and shows conclusions for the US.

"Facility Could Meet up to 75 Percent of Cape Cod and Islands' Electricity Demand CAMBRIDGE (April 28, 2010) - Leading environmental organizations hailed today's historic decision by Interior Department Secretary Ken Salazar to provide federal approval for Cape Wind, allowing the country's first utility-scale offshore wind farm to move forward. The announcement signaled the Administration's intentions to support renewable energy development off U.S. shores, a major component of a clean energy economy and reduced dependence on fossil fuels, the organizations said. Today's announcement ends a nearly nine-year environmental review process, much longer than is typical for a traditional coal power plant. The decision clears the way for Cape Wind to begin the permitting process and develop a 130 turbine wind farm in Nantucket Sound, which could meet as much as 75 percent of the electricity demand for Cape Cod and the Islands."