Carbon negative district heating (online)
The commercial production of carbon-negative district heating has begun for first time in Finland. The Carbofex factory heats up wood and turns it into a mineral, i.e. biochar. This happens through pyrolysis. When the biochar is used as a soil amendment it will sequester carbon permanently in the soil. The production process also produces waste heat. That heat will be bought by Tampereen Sähkölaitos Oy, which will distribute it to its own customers via its district heating network, heating thirty high rise blocks.