The city of Venice hopes to get at least 50 per cent of electricity from renewable sources by the year 2011. It plans to use algae to generate electricity.
Venice, known as the City of Bridges, plans to end its reliance on fossil fuels in the near future by primarily using biofuels.

As a first step the city officials have invested €200 million ($264 million) for a biofuels plant. They will use two types of algae, Sargassum muticum and Undaria pinnafitida. They will cultivate them in laboratories, which will then be used to generate electricity in a new 40 MW power plant. This plant will provide up to 50 per cent of the city’s electricity needs.

Full Story: Venice To Get Half Its Electricity From Algae By 2011

(Thanks Nova)