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Powerwall 3 - is it worth the outlay?

Energy Storage

Last Post by Judith 2 years ago

5 Posts

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Profzarkov

(@profzarkov)

Trusted Member Member

Joined: 2 years ago

Posts: 65

Topic starter 08/09/2024 4:13 pm [#1693]

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.

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Anonymous 5011

(@Anonymous 5011)

Joined: 4 years ago

Posts: 562

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.

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bontwoody

(@bontwoody)

Noble Member Contributor

Joined: 5 years ago

Posts: 1059

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-3 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
10kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60

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Profzarkov

(@profzarkov)

Trusted Member Member

Joined: 2 years ago

Posts: 65

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: 3 years ago

Posts: 551

15/09/2024 2:34 pm

Posted by: @Anonymous

↑

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 SCOP >4) open system operating on WC

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