A residential block of 242 new apartments in Salburúa, near Madrid Spain, is being powered by cogeneration technology.

The affordable housing project  produces 70 kilowatts of power via cogeneration, which is more than the building actually uses, allowing excess power to be sold back to the grid.

The building is composed of a 21-story tower and a continuous, U-shaped block with a varying height of between four and seven floors, reports Earth Techling.

After the success of the project another public project in the works for Salburúa this year,  could see cogeneration again deployed for a civic center designed to provide the district of Vitoria-Gateiz with a venue for sports, cultural events, and administration offices.

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