wwhitney
Active Member
No, that would have been a waste of money.Shouldn't Tesla have given me an inverter big enough to not clip?
Both inverters and panels cost money. For a system where PV DC size = inverter AC size, adding another a PV panel lowers the system average $/kWh generated, even though it may cause some clipping. Because the extra power that additional PV panel generates didn't incur any additional inverter cost. This continues to be true up to DC/AC ratios well over 1.0.
Indeed, clipping is more likely in cold weather, the temperature effect can be larger than the incidence angle effect (depending on your roof slope).Maybe the extra heat in the summer will lower the panel efficiency enough that I don't see as much difference in middle of the day peak in winter vs summer.
Cheers, Wayne