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Author Topic: RHI Government Consultation Response  (Read 4462 times)
Ted
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« on: December 14, 2016, 09:59:43 PM »

The government has just published the results of their consultation on proposed changes to the RHI - both Domestic and Non-Domestic.

https://www.gov.uk/government/consultations/the-renewable-heat-incentive-a-reformed-and-refocused-scheme

Main changes are implemented from next April, but anyone applying for RHI from today will be eligible for the new tariffs when they come in.

There will be new limits for heat demand maxima for a property:
 - ASHP 20,000 kWh
 - biomass 25,000 kWh
 - GSHP 30,000 kWh

No changes to solar thermal.

Other future changes are to include assignment of rights (same as rent-a-roof for PV) but no date for that has been decided yet.
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brackwell
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« Reply #1 on: December 15, 2016, 08:48:31 AM »

I do not see a distinction between Air to Air HP and Air to Water which i thought the old system did.

Ken
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GarethC
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« Reply #2 on: December 15, 2016, 09:28:03 AM »

Am I right that there essentially wasn't any support for air to air?
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brackwell
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« Reply #3 on: December 15, 2016, 09:50:10 AM »

Yes that was correct but in this report it just refers to ASHP ie AIR SOURCE hp
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Ted
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« Reply #4 on: December 15, 2016, 09:51:01 AM »

There is no RHI support for Air to Air Heat Pumps. To be eligible the product must be listed as such on the Product Eligibility List (PEL) which also requires ASHPs that:

- must use a compressor driven by electricity.
- must use a liquid to provide space (ie room) heating. It can also supply DHW or other heating to the same eligible property.   
- must have a minimum seasonal performance factor (SPF) of 2.5.   
- from 26 March 2016 must be compliant with the Ecodesign of Energy-related Products (ErP) Directive.   
- must not be designed to use heat from air expelled from an appliance or building when generating heat.
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ringi
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« Reply #5 on: December 15, 2016, 10:01:27 AM »

- must use a liquid to provide space (ie room) heating. It can also supply DHW or other heating to the same eligible property.   

What stops that liquid being the liquid/gas that connects the two half's of a split Air2Air system?
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Ted
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« Reply #6 on: December 15, 2016, 10:03:42 AM »

I believe it is down to interpretation by OFGEM. But if the product is not accepted on to the PEL by them then it is not eligible.
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ringi
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« Reply #7 on: December 15, 2016, 11:28:42 AM »

I believe it is down to interpretation by OFGEM. But if the product is not accepted on to the PEL by them then it is not eligible.

I was thinking if someone set out with the design aim of being accepted onto the PEL, there may be a way to create a A2A system.
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