Quote:
Originally Posted by NeilBlanchard
My quote is on Sunpower panels that have much more robust design and construction, and have a 25 year warranty on the whole system. They will produce a lot more electricity over time, as they start higher, and decline more slowly.
I want a lot of electricity, and I can fit up to 32 panels on the main south-facing roof. 260 watt panels would be an 8.3kW system.
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The 260 Watt panels I linked to are smaller in area and cheaper to go with their lesser output. Just to give you an example. They are speced at that output to go along with the 250Watt Enphase micro inverters at 1 per panel so that every panel is independent of all of the others. In case one is shaded or has bird droppings on it , ect. all the others still produce at full power. And you don't need any inverter in the house since all of the lines are carrying a/c right at the panel for the maximum transmission and conversion efficiency. The area for 10kW would be about the same. They also make 500W micro inverters if you want to go with the top of the line 340W larger panels which are 1% more efficient, 20 year warranty and rated 85% capacity at 25 years. They kit those panels with dc/dc converters (since they are too big for the Enphase 250W inverters) at each panel to isolate each one and this would feature a big inverter in the house. System price $17,230 for 10kW delivered.
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https://www.wholesalesolar.com/18915...rld-340-panels
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