In 1943, an anti-aircraft bunker was constructed by the Nazis in Hamburg, Germany. Some 70 years later, the structure is supplying power to more than 4,000 homes in the area.
Utility company Hamburg Energie partnered with IBA Hamburg to transform the building. The new "Energy Bunker" is already producing energy for the local community and will eventually provide heating to 3,000 homes and electricity to 1,000 others.
The anti-aircraft bunker had gun turrets to fend off Allied attacks, but also sheltered local people inside during air raids. At the end of WWII, the British wanted to destroy the building entirely, but demolishing the thick concrete walls likely would have damaged surrounding buildings. Instead, the British did away with most of the interior and left the exterior alone. The building remained this way for over 60 years, according to gizmag.
The original planning for the plant began in 2006, with actual renovation beginning in 2011. Funded by the European Regional Development Fund and the Hamburg Climate Protection Concept, the project came to approximately $36 million.
A 2 million-liter water reservoir plugs into the existing Reiherstieg heating network and will serve as a heat store for the plant. The plant features multiple heat sources: a biomass power plant; woodchip burning unit, which feeds into a large boiler; a solar thermal array located on the roof of the bunker; and waste heat from a nearby industrial plant.
To produce electricity, a photovoltaic system is installed on the building's southern facade; the wood burning unit that heats the reservoir doubles as an electricity-producing unit. The energy output is kept steady by a peak-load boiler and battery array.
In addition to the power plant, the building also includes a war memorial, cafe, and visitor's center.
Related Stories
| Oct 5, 2011
GREENBUILD 2011: Brick offers growing options for sustainable building design
Brick exteriors, interiors and landscaping options can increase sustainability that also helps earn LEED certification.
| Oct 5, 2011
GREENBUILD 2011: Roof hatch designed for energy efficiency
The cover features a specially designed EPDM finger-type gasket that ensures a positive seal with the curb to reduce air permeability and ensure energy performance.
| Oct 4, 2011
GREENBUILD 2011
Click here for the latest news and products from Greenbuild 2011, Oct. 4-7, in Toronto.
| Sep 29, 2011
Kohler supports 2011 Solar Decathlon competition teams
Modular Architecture > In a quest to create the ultimate ‘green’ house, 20 collegiate teams compete in Washington D.C. Mall.
| Sep 28, 2011
GBCI announces LEED fellow class of 2011
LEED Fellows represent green building industry's most accomplished professionals.
| Sep 28, 2011
Opus Group awarded contract for new Church & Dwight Co. headquarters
The campus will include two 125,000-sf Class A, energy-efficient office buildings that will be designed and constructed with sustainable practices and elements.
| Sep 23, 2011
Okanagan College sets sights on Living Buildings Challenge
The Living Building Challenge requires projects to meet a stringent list of qualifications, including net-zero energy and water consumption, and address critical environmental, social and economic factors.
| Sep 23, 2011
Under 40 Leadership Summit
Building Design+Construction’s Under 40 Leadership Summit takes place October 26-28, 2011 Hotel at the Monteleone in New Orleans. Discounted hotel rate deadline: October 2, 2011.
| Sep 16, 2011
Largest solar installation completed at Redskins' football stadium
On game days, solar power can provide up to 20% of FedExField’s power.
| Sep 16, 2011
Electrical installation work completed at Rhode Island DMV
The facility was renovated in order to better the working environment for DMV employees and streamline the experience for Rhode Island drivers.