Mix & match PV panels OK? Installers Surrey?

User avatar
nowty
Posts: 5543
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

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:
16.9kW PV > 107MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 22MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
User avatar
Joeboy
Posts: 7688
Joined: Mon May 31, 2021 4:22 pm
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.
19.2kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
User avatar
Joeboy
Posts: 7688
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

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 🍻
19.2kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
AE-NMidlands
Posts: 1934
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 MWhr pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWhr batt
30 solar thermal tubes, 2MWhr pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!
User avatar
Joeboy
Posts: 7688
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

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!
19.2kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Post Reply