A 70kW Solar Kit requires up to 2,200 square feet of space. This could produce an estimated 8,500 kilowatt hours (kWh) of alternating current (AC) power per month, assuming at least 5 sun hours per day with the solar. Wondering how much power a 70kW solar inverter can produce? While the answer depends on factors like sunlight hours and system design, this guide breaks down realistic expectations, industry benchmarks, and optimization strategies. Whether you're planning a commercial solar project or evaluating. Depending on where in Australia (or around the world) you are, a 70kW solar system will produce a different amount of energy each day. What Size Inverter. This high-power, low cost solar energy system generates 70,800 watts (70 kW) of grid-tied electricity with (120) 590 watt Axitec XXL bi-facial model PS590M8GF-24/TNH, GoodWe single-phase string inverters, 24/7 monitoring, disconnect box, rooftop. The made in Italy XL-size solar.