July 2020

Future support for low carbon heat

The government wishes to “increase the proportion of green gas in the grid” and to “provide targeted support to heat pumps”. The summary of evidence presented in our response shows that “green gas” from Anaerobic Digestion (AD) is often a suboptimal use of land and resources, except for a limited sustainable niche. Feedback therefore recommends that greater subsidies are dedicated to electrifying the heat supply as quickly as possible through technologies such as heat pumps, rather than locking in expensive and suboptimal “green gas” infrastructure. Feedback recommends increased taxes on landfill and incineration of waste feedstocks so that AD becomes attractive as a last resort only, with the revenue raised used to subsidise more cost-effective and more sustainable alternatives to AD, such as food waste prevention, afforestation, a just transition to more plant-based diets, and scaling up more efficient renewables such as solar and wind

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