How big an inverter is needed for 8 7kW solar
Generally, it's recommended to size the inverter to 80-100% of the DC system's rated capacity. [PDF Version]
How much copper does a solar inverter contain
on average between 2 and 3 tons of copper per MWp. 5 tons per MWp for utility-scale installations. ----- The copper intensity of use (tCu/MWp) in photovoltaic power systems depends on several factors. [PDF Version]
How big an inverter should a megawatt of solar power be equipped with
Generally, it's recommended to size the inverter to 80-100% of the DC system's rated capacity. [PDF Version]