The Boy That Cried PV Extension

Don't keep it to yourself - we want to see it
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nowty
Posts: 5886
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: The Boy That Cried PV Extension

#111

Post by nowty »

Krill wrote: Fri Nov 29, 2024 10:48 am Anyone got an below 1%?
0.13 %, I set min export at around 1kW all the time whilst I am not importing. :mrgreen:

If your on an export tariff there is little downside if you have a large enough battery, I have found even setting a min export at a few tens of watts makes a big difference.

Image

It would have been less than 0.01% if I had not fecked up on the 4th Nov. :facepalm:
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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 > 510 m3
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Krill
Posts: 408
Joined: Fri Sep 02, 2022 4:38 pm

Re: The Boy That Cried PV Extension

#112

Post by Krill »

It also helps when half the day is cheap slot...
Solar PV: 6.4kW solar PV (Eurener MEPV 400W*16)
PV Inverter: Solis 6kW inverter
Batteries: 14.4kWh LiFePO4 batteries (Pylontech US5000*3)
Battery Inverter: LuxPowertek 3600 ACS*2
EV: Hyundai Kona 65kWh
WBS: 8kW Hunter Avalon 6 Multifuel burner (wood only)
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nowty
Posts: 5886
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: The Boy That Cried PV Extension

#113

Post by nowty »

Krill wrote: Fri Nov 29, 2024 11:36 am It also helps when half the day is cheap slot...
It certainly does in the heating season. :whistle:
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 > 510 m3
Adokforme
Posts: 625
Joined: Sun Sep 19, 2021 10:09 pm

Re: The Boy That Cried PV Extension

#114

Post by Adokforme »

nowty wrote: Fri Nov 29, 2024 11:14 am
Krill wrote: Fri Nov 29, 2024 10:48 am Anyone got an below 1%?
0.13 %, I set min export at around 1kW all the time whilst I am not importing. :mrgreen:

If your on an export tariff there is little downside if you have a large enough battery, I have found even setting a min export at a few tens of watts makes a big difference.

Image

It would have been less than 0.01% if I had not fecked up on the 4th Nov. :facepalm:
Image
Thanks for posting @nowty as it is something I've been pondering on doing although hampered by the current Giv EMS only allowing export at maximum rate, 6kW's. Indra's V2H is similar but does at least have a sliding scale option but this covers both export and Import so not really helpful.
Perhaps I'll have to suggest it to them to see waht they might be able to come up with.
AE-NMidlands
Posts: 2073
Joined: Wed Jun 02, 2021 6:10 pm

Re: The Boy That Cried PV Extension

#115

Post by AE-NMidlands »

Adokforme wrote: Fri Nov 29, 2024 2:05 pm Thanks for posting @nowty as it is something I've been pondering on doing although hampered by the current Giv EMS only allowing export at maximum rate, 6kW's. Indra's V2H is similar but does at least have a sliding scale option but this covers both export and Import so not really helpful.
Perhaps I'll have to suggest it to them to see waht they might be able to come up with.
My Givenergy controls allow me to set a maximum battery draw, so I can limit that to prevent too much going out during an export period. The trouble with that is that a) - assuming there is no solar pv incoming - you can't take extra for the house without limiting the export, and b) you have to remember to wind it back up at the end of the export period to get full power available from the batt again, or it takes some and tops up from the grid!
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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