Mix & match PV panels OK? Installers Surrey?

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nowty
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Re: Mix & match PV panels OK? Installers Surrey?

#31

Post by nowty »

Fintray wrote: Fri Jun 21, 2024 1:27 pm
Joeboy wrote: Fri Jun 21, 2024 1:17 pm
nowty wrote: Fri Jun 21, 2024 12:53 pm

Another reason to switch from deemed export to metered export, then the grid becomes your dump load to keep your charge controllers in business.
What is the pay per kWh for metered export?
15p on Intelligent Octopus Go.
So you can export at 15p in the day and dump double the kWh (at 7.5p) into your storage heaters at night. :xx:
18.7kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 27MWh generated
6 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 520 m3
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Joeboy
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Location: Inverurie

Re: Mix & match PV panels OK? Installers Surrey?

#32

Post by Joeboy »

Fintray wrote: Fri Jun 21, 2024 1:27 pm
Joeboy wrote: Fri Jun 21, 2024 1:17 pm
nowty wrote: Fri Jun 21, 2024 12:53 pm

Another reason to switch from deemed export to metered export, then the grid becomes your dump load to keep your charge controllers in business.
What is the pay per kWh for metered export?
15p on Intelligent Octopus Go.
Cheers Ian, that's decent.
15kW PV SE, VI, HM, EN
42kWh LFPO4 storage
7kW ASHP
200ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
WBSx2
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Joeboy
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Re: Mix & match PV panels OK? Installers Surrey?

#33

Post by Joeboy »

nowty wrote: Fri Jun 21, 2024 1:39 pm
Fintray wrote: Fri Jun 21, 2024 1:27 pm
Joeboy wrote: Fri Jun 21, 2024 1:17 pm

What is the pay per kWh for metered export?
15p on Intelligent Octopus Go.
So you can export at 15p in the day and dump double the kWh (at 7.5p) into your storage heaters at night. :xx:
Cheers Nowty 🍻
15kW PV SE, VI, HM, EN
42kWh LFPO4 storage
7kW ASHP
200ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
WBSx2
Low energy bulbs
Veg patches & fruit trees
AE-NMidlands
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Joined: Wed Jun 02, 2021 6:10 pm

Re: Mix & match PV panels OK? Installers Surrey?

#34

Post by AE-NMidlands »

Joeboy wrote: Fri Jun 21, 2024 1:17 pm What is the pay per kWh for metered export?
or if you haven't got an EV
Electricity (Export) Current prices until 30th June 2024/New prices from 1st July 2024 [in MANWEB-land]
Unit rate - peak (per kWh) 26.131p /23.875p
Unit rate - flux (per kWh) 5.795p /5.295p
Unit rate - day (per kWh) 15.811p /15.811p
2.0 kW/4.62 MWh pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWh batt
30 solar thermal tubes, 2MWh pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!
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Joeboy
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Re: Mix & match PV panels OK? Installers Surrey?

#35

Post by Joeboy »

Well, I'm running my first test to see if the Goodwe Hybrid inverter responds to its own SOC limits to stop discharging.

Lessons learned so far.
1. The solar iboost would have to be off while discharging. :D
2. When running a test like this on a day like this the Victron system has to be shutdown, otherwise we'll never get down to 85% SOC on a 3.6kW discharge limit.
3. Time to get the calculator out!
15kW PV SE, VI, HM, EN
42kWh LFPO4 storage
7kW ASHP
200ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
WBSx2
Low energy bulbs
Veg patches & fruit trees
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