What is a renewable heat sources?
A renewable heat source should be carbon neutral. Renewable heat is an application of renewable energy and it refers to the renewable generation of heat, rather than electrical power. Renewable heat technologies include renewable biofuels, solar heating, geothermal heating, heat pumps and heat exchangers to recover lost heat. We agree that biomass for energy should not be unilaterally labelled as carbon neutral.
Carbon neutrality depends on how the stock of carbon in the forest is maintained. If the stock of wood (and therefore carbon) is reduced by using wood for energy, then there is net new carbon added to the atmosphere. However, this paper will show many heat sources are not renewable and which are. We will also demonstrate that if the stock of carbon in the forest is not reduced, then the combustion of wood for energy is carbon neutral.
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