To achieve a 10kW solar system you are going to take 10,000 watts (10kW) and divide it by the wattage of a single solar panel (370 watts). This will give you a reading of 27.
Recent pricing trends show standard residential systems (5-10kW) starting at $15,000 and commercial systems (50kW-1MW) from $75,000, with flexible financing options including PPAs and solar loans available.