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Why can I not get both RHI and FiTs?

Posted by Gabby Mallett on 16 September 2016 at 5:05 pm

Question: Our new custom built house will have a new air source heat pump & solar thermal. Assuming we use an accredited supplier etc we think we may be eligible for Renewable Heat Incentive (RHI) scheme payments for these. However according to the Ofgem Domestic RHI Reference document (page 32) it looks like we cannot claim Feed-in Tariff (FiT) payments for the solar PV (installed in 2011 on our old house) and new RHI payments too. It looks like it is either one or the other?? The guidelines are not totally clear.

Answer: Firstly see my blog on the RHI for custom builds. It certainly looks as though you should be able to claim RHI for your new Renewable heating systems. 

There is certainly no reason why someone shouldn’t be able to claim RHI for their renewable heating and FiTs for their renewable electricity generation, so I am not sure where the confusion has arisen.  You mention page 32 of the reference document, but this details multiple renewable heat products rather than multiple renewable energy products. 

As you are having PV, Air Source Heat Pump and Solar Thermal installed the good news is that you should be eligible for FiTs on the PV for electricity generation, RHI on the ASHP for space heating and RHI on the solar thermal for water heating.


More information about the Renewable Heat Incentive (RHI) on YouGen.

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2 comments - read them below or add one

Bean Beanland

Bean BeanlandComment left on: 30 September 2016 at 6:53 pm

You should be able to claim the DRHI on both the air-source heat pump and on the solar thermal, provided that the solar thermal is only doing domestic hot water. If the solar thermal is contributing to any other demand, then it will be ineligible. Sad but true.There is no reason that you can't claim the FiTs for the separate solar PV as this is a completely distinct technology and subsidy claim. Unless you have installed one of the hybrid solar thermal and PV combined products.

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Ben Whittle

Ben WhittleComment left on: 19 September 2016 at 4:40 pm

I am claiming for both solar thermal and PV, and I don't believe there is anything to prevent you claiming RHI for a heat pump as well. If you look on Page 33 there is a heading "two or more technology types" - as gabby says this is under the dRHI not FiT, so you can indeed fit 2 heat producing technologies as long as one of them is solar thermal.

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