This Entire Building Is Powered By Its Algae-Filled Walls | Co.Exist: World changing ideas and innovation
Algae may still be years away as a source for road and jet fuel. But could it power whole buildings before long?
If you think that’s crazy, then look at this recently completed five-story residential building in Hamburg. It is covered by panels filled with algae, a fast-growing form of biomass. The building pumps water, nutrients, and compressed CO2 between 129 “bioreactors.” When the sun shines, the algae multiplies as a result of photosynthesis. The system collects the residue, then converts it to biogas, which is burned in a boiler. Together with a heat recovery system and solar panels on the roof, the building is completely energy independent, according to its creators.