A former Nazi bunker located in the Wilhelmsburg district of Hamburg, Germany is about to get a full-scale makeover. The building, which sorta looks like a giant LEGO, is set to become Europe’s largest renewable energy power plant.
When it’s all said and done, the power plant will supply 3,000 homes with heating and 1,000 of those with electricity, cutting 6,600 tons of CO2 per year.
How? The nine story structure (called a Flaktürme in German) will boast a 110 kWh rooftop photovoltaic system and a south-facing 0.6 GWh solar-thermal unit come 2012. The building’s interior is being reserved for even further expansion. By 2013 the structure will house a 10.5 GWh woodchip combined heat and power plant (CHP), and a 3.7 GWh biomethane plant powered by a nearby industrial plant, for example. Waste heat will also be stored. That sounds like a lot but this building could house around 80 single family homes. It is that big.