India's first green housing project facilitated with building-integrated solar power has been developed in a new district of Kolkata. Both environmentally and economically attractive, this project acts as a trailblazer for the rapidly developing country.

Amid the turbulence of the credit crunch, investors are increasingly concerned with finding a safe asset class for investment - property is crashing, the stock market has crashed and bonds look risky. Investors are looking to diversify their portfolios into a variety of alternative asset classes. Energy infrastructure could provide that potential safe haven.

Orlando Wagner and Jochen Hauff compare the booming renewables market with other sectors where a boom has been followed by a bust, on the lookout for danger signals. They conclude that the renewable energy sector has strong foundations - but does have some areas of vulnerability, which they examine in detail.

As would be expected in a maturing market, there are considerable changes in the wind energy industry, particularly when viewed over a period of several years rather than in any one year in particular. The size of wind farms continues to grow, as does the size of the wind turbines which populate them.