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7.3 kW Bi Facial Rooftop Panels: ~7 year ROI: Fact OR fiction?
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Not sure how relevant this is based on your distance from me, but my 5 year old sse 4kw system made 22kwh today.West central Scotland
4kw sse since 2014 and 6.6kw wsw / ene split since 2019
24kwh leaf, 75Kwh Tesla and Lux 3600 with 60Kwh storage1 -
Our west facing system, in South Wales, made 14.4kWh today.
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Sadly, neither is within a few miles of my address so can't really compare. Anyone in SE1, SE16 or E1W?- 10 x 400w LG + 6 x 550W SHARP BiFacial Panels + SE 3680 HD Wave Inverter + SE Optimizers. SE London.
- Triple aspect. (22% ENE/ 33% SSE/ 45% WSW)
- Viessmann 200-W on Advanced Weather Comp. (the most efficient gas boiler sold)Feel free to DM me if I can help with any energy saving!0 -
Just missed my first Hawaii. 19.21 kWh today, a new high, despite power nowhere near its all time peak. A much more perfect looking curve today- 10 x 400w LG + 6 x 550W SHARP BiFacial Panels + SE 3680 HD Wave Inverter + SE Optimizers. SE London.
- Triple aspect. (22% ENE/ 33% SSE/ 45% WSW)
- Viessmann 200-W on Advanced Weather Comp. (the most efficient gas boiler sold)Feel free to DM me if I can help with any energy saving!0 -
24.7kwh on my 4 year old 4kw system in Lincolnshire.0
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Over 30kWh here on Thursday, and very nearly that on Sunday. 397kWh so far for March. Nowhere near Zone 2 though!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
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Closed out March at 337 kWh total, more than double Feb's 157kWh total.
Graph here- 10 x 400w LG + 6 x 550W SHARP BiFacial Panels + SE 3680 HD Wave Inverter + SE Optimizers. SE London.
- Triple aspect. (22% ENE/ 33% SSE/ 45% WSW)
- Viessmann 200-W on Advanced Weather Comp. (the most efficient gas boiler sold)Feel free to DM me if I can help with any energy saving!0 -
Pretty much what you would expect. My expected Feb generation is 193kWh; March is 394kWh. In fact Feb to March is the biggest month-on-month change of the year.2
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20.62 kWh today, a new high for the triple aspect bifacial system.
Near perfect graph here.- 10 x 400w LG + 6 x 550W SHARP BiFacial Panels + SE 3680 HD Wave Inverter + SE Optimizers. SE London.
- Triple aspect. (22% ENE/ 33% SSE/ 45% WSW)
- Viessmann 200-W on Advanced Weather Comp. (the most efficient gas boiler sold)Feel free to DM me if I can help with any energy saving!1 -
For comparison we generated 22.3kWh in Norwich today from our budget 3.42kWp system. Not a cloud in the sky.0
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