Now the sun has gone down I have the final figure from my W-facing system: 580 kWh, 115% of the prediction and almost 128 kWh per kWp. What a month!
In fact this year has averaged 109.5% of the predicted amounts compared with 90.4% for all 2024. This year the lowest month (Feb) was 99%, last year the highest (June) was 99%...
May Generation 2025
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- Posts: 2301
- Joined: Wed Jun 02, 2021 6:10 pm
May Generation 2025
2.0 kW/4.62 MWh pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWh Givenergy 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!
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!
Re: May Generation 2025
Last May was my highest ever monthly generation at 1637 kWh, then it was broken in June last year at 2059 kWh.
(nowtyrecord)
This month is now a new monthly generation PB at 2339 kWh.
My energy bill from Octopus this month is a negative bill of over £290
with over 2700 kWh exported, only issue is they have billed me for my import but not yet paid me for export. 
(nowtyrecord)
This month is now a new monthly generation PB at 2339 kWh.
My energy bill from Octopus this month is a negative bill of over £290


19.6kW PV > 116MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 34MWh generated
7 Other RE Coop's
105kWh EV storage
90kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 530 m3
Ripple 6.6kW Wind + 4.5kW PV > 34MWh generated
7 Other RE Coop's
105kWh EV storage
90kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 530 m3
Re: May Generation 2025
Work array generated 1.54MWh in May, a record, which follows record generation in April, March and Feb. Ok I know this is only year 3 of the system, but still!
Tesla Model 3 Performance
Oversees an 11kWp solar array at work
Oversees an 11kWp solar array at work
Re: May Generation 2025
Flippin eck. So you're exporting about 90kWh per day. You must be 'greening' the whole neighbourhood.nowty wrote: ↑Sat May 31, 2025 9:15 pm Last May was my highest ever monthly generation at 1637 kWh, then it was broken in June last year at 2059 kWh.
(nowtyrecord)
This month is now a new monthly generation PB at 2339 kWh.
My energy bill from Octopus this month is a negative bill of over £290with over 2700 kWh exported, only issue is they have billed me for my import but not yet paid me for export.
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8.7kWp PV [2.12kWp SSW + 4.61kWp ESE PV + 2.0kWp WNW PV]
Two BEV's.
Two small A2A heatpumps.
20kWh Battery storage.
Two BEV's.
Two small A2A heatpumps.
20kWh Battery storage.
Re: May Generation 2025
Do the neighbours realise they're living next door to a massive power station?!
Tesla Model 3 Performance
Oversees an 11kWp solar array at work
Oversees an 11kWp solar array at work
Re: May Generation 2025
We exported 1.867MWh and after running the house & EV added £159 to the VB for winter. 

16.65kW PV SE, VI, HM, EN
42kWh LFPO4 storage
73kWh V2H EV
7kW ASHP
200ltr HWT.
3G
Deep insulation, air leak ct'd home
WBSx2
Low energy bulbs
Veg patches & fruit
42kWh LFPO4 storage
73kWh V2H EV
7kW ASHP
200ltr HWT.
3G
Deep insulation, air leak ct'd home
WBSx2
Low energy bulbs
Veg patches & fruit
Re: May Generation 2025
Sunsynk system 853Kwh - all time record month
Hoymiles mancave system 131kWh
Almost in touching distance of the magic 1MWh - would have got there too, if it wasn't for those pesky meddling voltage drop outs with the hoymiles system
Hoymiles mancave system 131kWh
Almost in touching distance of the magic 1MWh - would have got there too, if it wasn't for those pesky meddling voltage drop outs with the hoymiles system
Solar PV since July '22:
5.6kWp east/west facing
3.6kW Sunsynk hybrid inverter
2x 5.12kWh Sunsynk batteries
1.6kWp Hoymiles East/West facing PV on the man cave
Ripple DW 2kW
Ripple WB 200W
5.6kWp east/west facing
3.6kW Sunsynk hybrid inverter
2x 5.12kWh Sunsynk batteries
1.6kWp Hoymiles East/West facing PV on the man cave
Ripple DW 2kW
Ripple WB 200W
Re: May Generation 2025
FIT system = 605.6
Synsynk system = 53.7
Synsynk shuts down automatically when my batteries are full, hence low outputs in good weather. I really really need to sort out an export contract given i have 4.0kw export ability.
Synsynk system = 53.7
Synsynk shuts down automatically when my batteries are full, hence low outputs in good weather. I really really need to sort out an export contract given i have 4.0kw export ability.
4.0kw FIT PV solar SunnyBoy 4000tl & 7 x 570w JA solar panels
7.410kw 13 x 570w JA Solar panels & Sunsynk ECCO 3.6kw.
7 x US5000 Pylontechs.
2 x 3.5kw A2A
4500l RWH
Biomass heating
Iboost divertor
Full house internal walls insu
600min Loft insul
7.410kw 13 x 570w JA Solar panels & Sunsynk ECCO 3.6kw.
7 x US5000 Pylontechs.
2 x 3.5kw A2A
4500l RWH
Biomass heating
Iboost divertor
Full house internal walls insu
600min Loft insul