Ground Source Heat Pumps (GSHPs) are supported under both the non-domestic and domestic Renewable Heat Incentive (RHI). We have increased the non-domestic tariff for GSHPs to 8.7 pence per kilowatt hour (p/kWh) for tier 1 (i.e. the first 1,314 hours of renewable heat produced per year) and 2.6p/kWh for tier 2 (subsequent heat produced). The level of support for GSHPs under the domestic scheme is 19.1p/kWh.
We are aware of the industry’s concerns that the RHI is not supporting as many GSHPs as might be expected; and we are considering what action could be taken. My officials are already discussing this issue with industry, and will continue to do so as options are developed. However, any decisions which involve changes to RHI support will be dependent on the outcome of the Spending Review later this year.