Solar panel production figures

reef said:
I'm getting a charging point fitted on Monday by Octopus and have an EV from them on a salary sacrifice scheme with work, so Ill be on their Intelligent Go EV Saver (6p from 11.30pm - 5.30am) and fixed export (15p).
Click to expand...
Perhaps I should be looking at that as well, currently on Octopus Flux. Have GivEnergy AIO (13.5 kW and 14kW PHEV).
 
Poor day house made 7.80Kwh no export
workshop 2.90Kwh zero export

House System is split East West
down in not so sunny Devon.
East 8 x 420w panels 45 deg pitch
West 10 x 420w panels 45 deg pitch
Givenergy Gen3 5kwh hybrid
2 x 9.5 battery's

Workshop system is South/East
2440w of panels two 720w strings
one 1000w string
Hybrid inverter with 4x 12v 100Amp
Battery's
Plus grid tie inverter as well
 
because the weather's been so utterly terribad recently i'd thought i'd calculate my expense vs savings in the last few months since the PV installation in feb this year
seems like i've just about paid off ~9% of the total PV cost in 8 months, putting my expected ROI at under 8 years

Code: 
solar cost        2333.1                £798.00            £384.96
£8335            gross export kwh    gross savings    gross export £
2024    feb        6.6                    £27.00            £1.09
        mar        126.6                £68.00            £20.89
        apr        305.8                £99.00            £50.46
        may        401.4                £105.00            £66.23
        jun        450.1                £140.00            £74.27
        jul        451                    £137.00            £74.42
        aug        379.2                £133.00            £62.57
        sep        212.4                £89.00            £35.05
 
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