5.18 kWp PV systems (3.68 E/W & 1.5 E).
Solar iBoost+ to two immersion heaters on 350L thermal store.
100% composted food waste
Mini orchard planted and vegetable allotment created.
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8.5 kW Bifacial PV System: ~7 year ROI: Fact OR fiction?
Comments
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New high for the bifacial system today. 9.86 kWh on a somewhat cloudy day (as seen the graph below). Pretty confident it will exceed 11kWh on a clear winter day based on this.
Generation graph here- 10 x 400w LG Bifacial + 6 x 550W SHARP BiFacial + 2 x 570W SHARP Bifacial + 5kW SolarEdge Inverter + SolarEdge Optimizers. SE London.
- Triple aspect. (33% ENE.33% SSE. 34% WSW)
- Viessmann 200-W on Advanced Weather Comp. (The most efficient gas boiler sold)Feel free to DM me for help with any form of energy saving! Happy to help!4 -
Your post encouraged me to fix my wifi issue and read the output of my inverters. On the same day as you generated 9.86 kWh, I generated the princely amount of 3.3Screwdriva said:New high for the bifacial system today. 9.86 kWh on a somewhat cloudy day (as seen the graph below). Pretty confident it will exceed 11kWh on a clear winter day based on this.
4 -
A couple interesting statistics:
- It took just 17 days in February to exceed total power generation for the preceding 31 day month.
- Of those 17, 6 days have had generation of 8 kWh or greater (aka double O’s), taking average yield well in excess of 4 kWh per day in Feb.
- Total power generation is 250 kWh since commissioning on 11/12/19, of which 138 kWh has been exported to the grid (@ £5.38 per kWh)
- 10 x 400w LG Bifacial + 6 x 550W SHARP BiFacial + 2 x 570W SHARP Bifacial + 5kW SolarEdge Inverter + SolarEdge Optimizers. SE London.
- Triple aspect. (33% ENE.33% SSE. 34% WSW)
- Viessmann 200-W on Advanced Weather Comp. (The most efficient gas boiler sold)Feel free to DM me for help with any form of energy saving! Happy to help!2 -
That is good going! But I do think you mean £0.0538 per kWh, unfortunately?Screwdriva said:of which 138 kWh has been exported to the grid (@ £5.38 per kWh)
(If not, I want to buy the house off you, with the LG panels and the ongoing contract included....)7.25 kWp PV system (4.1kW WSW & 3.15kW ENE), Solis inverter, myenergi eddi & harvi for energy diversion to immersion heater. myenergi hub for Virtual Power Plant demand-side response trial.0 -
:-) Sold.
Youre right - it’s 0.0538- 10 x 400w LG Bifacial + 6 x 550W SHARP BiFacial + 2 x 570W SHARP Bifacial + 5kW SolarEdge Inverter + SolarEdge Optimizers. SE London.
- Triple aspect. (33% ENE.33% SSE. 34% WSW)
- Viessmann 200-W on Advanced Weather Comp. (The most efficient gas boiler sold)Feel free to DM me for help with any form of energy saving! Happy to help!0 -
Finished up the 28 days of February exactly at 150 kWh, a > 50% increase over January 2020 (97 kWh), at an average generation of 5.4 kWh per day.- 10 x 400w LG Bifacial + 6 x 550W SHARP BiFacial + 2 x 570W SHARP Bifacial + 5kW SolarEdge Inverter + SolarEdge Optimizers. SE London.
- Triple aspect. (33% ENE.33% SSE. 34% WSW)
- Viessmann 200-W on Advanced Weather Comp. (The most efficient gas boiler sold)Feel free to DM me for help with any form of energy saving! Happy to help!2 -
Hiya. Any gut feelings yet on how these panels are performing? I'm guessing it's too early since install, and too early in the year, but just wondering. I'm trying to move forward on my small PV extension, and see these panels are OK'ish priced, and sold as best used on boats (due to white background), or as you've done, with a white reflective paint, but 4 panels at 400Wp (500Wp theory) straddle my inverters max DC input, that's to say 1,600Wp is fine, but 2,000Wp is just a bit over ........ first world problems eh!Screwdriva said:Finished up the 28 days of February exactly at 150 kWh, a > 50% increase over January 2020 (97 kWh), at an average generation of 5.4 kWh per day.Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 28kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.
For general PV advice please see the PV FAQ thread on the Green & Ethical Board.0 -
It is a bit early in the year but I have tried to share actual numbers from the system on this thread.They aren’t overpriced for what they offer and I would go for them again. That said, I expect them to routinely exceed 10 kWh when the sun gets higher later in the year.- 10 x 400w LG Bifacial + 6 x 550W SHARP BiFacial + 2 x 570W SHARP Bifacial + 5kW SolarEdge Inverter + SolarEdge Optimizers. SE London.
- Triple aspect. (33% ENE.33% SSE. 34% WSW)
- Viessmann 200-W on Advanced Weather Comp. (The most efficient gas boiler sold)Feel free to DM me for help with any form of energy saving! Happy to help!2 -
I spoke too soon. The system hit 14.29 kWh today, which blows the previous high out of the water. Also a new peak power generation at 2.71 kWh just before noon. I am now increasingly confident the system is capable of hitting a Quad O i.e. 16 kWh on the right day.
For perspective, generation today was nearly 10% of the entire month of Feb. Graph: https://imgur.com/a/vSxqAc5
Martyn1981 said:
Hiya. Any gut feelings yet on how these panels are performing?
- 10 x 400w LG Bifacial + 6 x 550W SHARP BiFacial + 2 x 570W SHARP Bifacial + 5kW SolarEdge Inverter + SolarEdge Optimizers. SE London.
- Triple aspect. (33% ENE.33% SSE. 34% WSW)
- Viessmann 200-W on Advanced Weather Comp. (The most efficient gas boiler sold)Feel free to DM me for help with any form of energy saving! Happy to help!1 -
When you say okish price....
I have to measure it up against my 300w split panels for £80 each a year agoWest central Scotland
4kw sse since 2014 and 6.6kw wsw / ene split since 2019
24kwh leaf, 75Kwh Tesla and Lux 3600 with 60Kwh storage0
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