Re: Bloody batteries and solar panels
> Down votes without enlightening comments demonstrate pique power?
Very clever. Have a comment anyway.
I've just had domestic solar installed. There are two "strings", with 6 and 8 panels in series. The voltages are around 200V and 270V per string, and a peak current of around 12A, so the ohmic losses are no greater than regular domestic wiring. There are 'optimisers' fitted to each panel to ensure that if one panel reduces capacity, it does not affect the others.
I can tell you that the copper wiring between the panels and the inverter did not make up a significant part of the system cost.
No doubt the inverter and batteries, and even the panels themselves, have some copper inside them. That cost is hidden, but again I think the amounts are small.
Electric motors in EVs though - that's a different matter.
Biting the hand that feeds IT
