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The under water kite

Swedish company Minesto has found way of producing tidal power at a reasonable price and without the need for large infrastructure.

Maximum energy from moderate waves

Langlee Wave Power has developed a unique technology for converting the power of sea waves into electric power. It captures a greater proportion of wave energy than alternative systems — and is desi

The lure of manure

Where others see manure, Norwegian company Energreen see a source for energy. Their BiEnergy concept is a way of capturing greenhouse gases, as well as producing both fertilizer and energy from one of