Could be set to Restrict the AC energy input if power use is a priority due to greatest electricity demand from customers or just to minimize the ability usage for economic discounts. Which means the Air Conditioner is effective totally in the solar ability the 4 x 270 watt panels https://alexisnaint.laowaiblog.com/32312034/the-2-minute-rule-for-off-grid-solar-air-conditioners-darwin