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Air Source Heat Pumps (ASHPs)
Last Post by batalto 2 years ago
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 batalto
(@batalto)
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Posts: 1091
Topic starter 28/07/2021 2:05 pm  

@morgan pretty poor. Although with the GHG having ended, I doubt they are in a rush

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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Morgan
 Morgan
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Posts: 619
28/07/2021 3:00 pm  

@batalto how long after accepting quote and paying initial deposit should I expect contact re the tech’ survey?

Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.

2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.


   
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JulianC
 JulianC
(@julianc)
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Posts: 322
28/07/2021 3:06 pm  

@batalto - when you say waiting RHI, what do you mean?  I filled my RHI request on-line and pressed go. And the response came back approved in seconds. Set up my bank account payment and boom. All done. 
Our first payment due now

Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and new Hyundai Ioniq 5 N electric vehicles with Myenergi Zappi mk1 charger


   
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 batalto
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Topic starter 28/07/2021 3:29 pm  

@julianc because of the Green Homes Grant the documents need to be reviewed. I had to submit paid invoices to show how much I paid towards the system and how much the GHG covered. As an FYI my cost was £10,340 and the GHG picked up £5k of that for me. This reduces the RHI by the same amount (£5k)

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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JulianC
 JulianC
(@julianc)
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Posts: 322
28/07/2021 3:34 pm  

Arh ok. Understood. I didn’t use GHG

Good luck with all the documents 

Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and new Hyundai Ioniq 5 N electric vehicles with Myenergi Zappi mk1 charger


   
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Morgan
 Morgan
(@morgan)
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Posts: 619
28/07/2021 5:32 pm  
Posted by: @morgan

@batalto how long after accepting quote and paying initial deposit should I expect contact re the tech’ survey?

Update.  Chased them and now have a tech’ survey booked in for 10th August.  

Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.

2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.


   
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 batalto
(@batalto)
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Posts: 1091
Topic starter 28/07/2021 6:23 pm  

@julianc they said it would be up to 10 days. From what I've seen it'll be quicker

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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 batalto
(@batalto)
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Posts: 1091
Topic starter 30/07/2021 11:13 am  

As a note - RHI approved. £219 a quarter for the next 7 years, inflation linked at CPI - more than covers my costs

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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JulianC
 JulianC
(@julianc)
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Joined: 4 years ago
Posts: 322
30/07/2021 11:24 am  

Good news @batalto  Is your ASHP fully funded by GHB and RHI?

I have received my first quarterly RHI payment of £357

Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and new Hyundai Ioniq 5 N electric vehicles with Myenergi Zappi mk1 charger


   
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 batalto
(@batalto)
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Topic starter 30/07/2021 11:37 am  

@julianc It will be yes. 

£10,000 for the whole system

£5,000 GHG

£6,132 RHI (plus inflation)

£11,132 total from the government for the system

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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4
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Jeff
 Jeff
(@jeff)
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Posts: 482
30/07/2021 11:50 am  

Be interesting to see what happens if the government go ahead as planned and replace the RHI in March next year with an upfront grant of up to  £4,000.

£11,132 vs £4,000 is quite a big difference.

I assume the current RHI is probably unaffordable for the government as the number of installations ramp up. 


   
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 batalto
(@batalto)
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Posts: 1091
Topic starter 30/07/2021 2:22 pm  

@jeff seems to me like the GHG is just being replaced with a grant £4k less and the RHI is being scrapped. My cost profile would totally change and probably make the ASHP not worth it - unless the price of electricity changes to a much lower base. As is I'll make money and my cost should also reduce due to my solar and batteries

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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