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Batteries and saving sessions
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So the results for the 12 December saving session are in. I earned ~ 36,000 OctoPoints worth £45. That might just about pay for the heating bill for this week. Thanks to National Grid for their generosity.1
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I saved 100%.. in the last session... total over 5 sessions £1.05p3.995kWP SSW facing. Commissioned 7 July 2011. 24 degree pitch (£3.36 /W).
17 Yingli 235 panels
Sunnyboy 4000TL inverter
Sunny Webox
Solar Immersion installed May 2013, after two Solar Immersion lasting just over the guarantee period replaced with Solic 200... no problems since.
13 Feb 2020 LUX AC 3600 and 3 X Pylon Tech 3.5 kW batteries added...
20 January 2024 Daikin ASHP installed2 -
That's impressive & put's my paltry £25.05 to shame.Petriix said:So the results for the 12 December saving session are in. I earned ~ 36,000 OctoPoints worth £45. That might just about pay for the heating bill for this week. Thanks to National Grid for their generosity.4kWp (black/black) - Sofar Inverter - SSE(141°) - 30° pitch - North LincsInstalled June 2013 - PVGIS = 3400Sofar ME3000SP Inverter & 5 x Pylontech US2000B Plus & 3 x US2000C Batteries - 19.2kWh0 -
In reality I saved about 800Wh in the session. It's only the in day adjustment that bumped it up to nearly 20kWh.mickyduck55 said:I saved 100%.. in the last session... total over 5 sessions £1.05p1 -
The in day adjustment is poorly conceived & seems to carry a 100% weighting.Petriix said:
In reality I saved about 800Wh in the session. It's only the in day adjustment that bumped it up to nearly 20kWh.mickyduck55 said:I saved 100%.. in the last session... total over 5 sessions £1.05p
4kWp (black/black) - Sofar Inverter - SSE(141°) - 30° pitch - North LincsInstalled June 2013 - PVGIS = 3400Sofar ME3000SP Inverter & 5 x Pylontech US2000B Plus & 3 x US2000C Batteries - 19.2kWh0 -
Just over £56 for me.Petriix said:So the results for the 12 December saving session are in. I earned ~ 36,000 OctoPoints worth £45. That might just about pay for the heating bill for this week. Thanks to National Grid for their generosity.PV total 19.8 kW system:
23 x 420W East/West split over two flat roof areas at 10 degrees inclination.
13 x 390W South spit over two flat roof areas at 5 to 20 degrees inclination.
6 x 390W south wall mounted at 90 degrees inclination.
7 x 390W West wall mounted at 90 degrees inclination.
2 x 5 kW hybrid inverters
4 x 9.5 kWh batteries (38 kWh total)1 -
A heavy weighting not 100% more like two thirds.1961Nick said:
The in day adjustment is poorly conceived & seems to carry a 100% weighting.Petriix said:
In reality I saved about 800Wh in the session. It's only the in day adjustment that bumped it up to nearly 20kWh.mickyduck55 said:I saved 100%.. in the last session... total over 5 sessions £1.05pPV total 19.8 kW system:
23 x 420W East/West split over two flat roof areas at 10 degrees inclination.
13 x 390W South spit over two flat roof areas at 5 to 20 degrees inclination.
6 x 390W south wall mounted at 90 degrees inclination.
7 x 390W West wall mounted at 90 degrees inclination.
2 x 5 kW hybrid inverters
4 x 9.5 kWh batteries (38 kWh total)0 -
Did you achieve that by consuming 39kWh in the 3 hours ending 1 hour before the savings session?94JDH said:
A heavy weighting not 100% more like two thirds.1961Nick said:
The in day adjustment is poorly conceived & seems to carry a 100% weighting.Petriix said:
In reality I saved about 800Wh in the session. It's only the in day adjustment that bumped it up to nearly 20kWh.mickyduck55 said:I saved 100%.. in the last session... total over 5 sessions £1.05p4kWp (black/black) - Sofar Inverter - SSE(141°) - 30° pitch - North LincsInstalled June 2013 - PVGIS = 3400Sofar ME3000SP Inverter & 5 x Pylontech US2000B Plus & 3 x US2000C Batteries - 19.2kWh0 -
Yes, around that figure - I don't use anything between 5-7pm because of the batteries. When you work back the value in kW it's around 25kW so it's not taking 100% of your use on that 3 hour period or I'd be around £80.1961Nick said:
Did you achieve that by consuming 39kWh in the 3 hours ending 1 hour before the savings session?94JDH said:
A heavy weighting not 100% more like two thirds.1961Nick said:
The in day adjustment is poorly conceived & seems to carry a 100% weighting.Petriix said:
In reality I saved about 800Wh in the session. It's only the in day adjustment that bumped it up to nearly 20kWh.mickyduck55 said:I saved 100%.. in the last session... total over 5 sessions £1.05pPV total 19.8 kW system:
23 x 420W East/West split over two flat roof areas at 10 degrees inclination.
13 x 390W South spit over two flat roof areas at 5 to 20 degrees inclination.
6 x 390W south wall mounted at 90 degrees inclination.
7 x 390W West wall mounted at 90 degrees inclination.
2 x 5 kW hybrid inverters
4 x 9.5 kWh batteries (38 kWh total)0 -
I'm really torn when it comes to these saving sessions, my gas is costing me a tenner a day but I'm still loathed to waste energy in the 4-1 hours before.
The last one my solar was working against me as it was covering around 1.7kwh in the early afternoon so I chose to wait until the final hour before running wasteful oil and fan heater and dishwasher, I only ended up with around 4.2kWh extra used and it awarded me about £7.4.29kWp Solar system, 45/55 South/West split in cloudy rainy Cumbria.0
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