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Powerwall 3 - is it worth the outlay?

 
Energy Storage
Last Post by Judith 7 months ago
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Profzarkov
 Profzarkov
(@profzarkov)
Estimable Member Member
Joined: 8 months ago
Posts: 34
Topic starter 08/09/2024 4:13 pm  

Hi

Under the Eco4 grant, you may get PV and a heat pump but no battery.

We are looking to add this soon. Since we have to swap our SolaX 3.6 string inverter for a hybrid,  I was considering the Powerwall 3 as it has it's own inverter but is it worth the outlay?

I've been quoted £7-8k Inc the gateway.

This topic was modified 7 months ago by Mars

   
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 Johnmo
(@johnmo)
Prominent Member Member
Joined: 2 years ago
Posts: 424
09/09/2024 10:48 pm  

Little confused.

ECO4 - It primarily targets low-income and vulnerable households, people on benefits, but you have disposable income to justify £7-8K spend. Something not adding up.

Maxa i32V5 6kW ASHP (heat and cooling)
6.5kW PV
13.5kW GivEnergy AIO Battery.


   
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bontwoody
 bontwoody
(@bontwoody)
Noble Member Contributor
Joined: 3 years ago
Posts: 799
10/09/2024 7:53 am  

@johnmo You can also get the grant on health reasons. A friend of mine is immuno-suppressed and bought a wreck of a house (low EPC) so is eligible.

House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60


   
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Profzarkov
 Profzarkov
(@profzarkov)
Estimable Member Member
Joined: 8 months ago
Posts: 34
Topic starter 14/09/2024 9:12 am  

@johnmo our combined income is below the £31k and so qualify . I've had cancer so I might also qualify for that too. We have some savings which don't count. Hence the thinking of adding a battery.

The install is long and tortuous...it started in may and is still going on. Final inspection today & week.

Hope that helps


   
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 Judith
(@judith)
Prominent Member Member
Joined: 1 year ago
Posts: 334
15/09/2024 2:34 pm  

Posted by: @johnmo
↑

Little confused.

ECO4 - It primarily targets low-income and vulnerable households, people on benefits, but you have disposable income to justify £7-8K spend. Something not adding up.

Do we need to challenge personal circumstances on here? Surely not?

 

2kW + Growatt & 4kW +Sunnyboy PV on south-facing roof Solar thermal. 9.5kWh Givenergy battery with AC3. MVHR. Vaillant 7kW ASHP (very pleased with it) open system operating on WC


   
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