Most of our energy use is electricity as well, but I'd like to stress that we do not use electricity to heat the material. That's actually done naturally by the composting process itself. Where we're using electricity is predominantly in the operation of our fans to make sure that the air is moving through the process to be able to encourage the composting process in the tunnel, and also to ensure that we keep our building under negative air pressure.
On November 24th, 2014. See this statement in context.