Choosing a 2,000-watt vs 3,000-watt inverter depends on your power needs. With a 2,000-watt inverter, your system may limit you to a maximum of 24 amps, regardless of whether the system is designed for 30 or 50 amps. If your appliances or loads require more than 2,000 watts, a 3,000-watt inverter would be a better choice, allowing you to operate more equipment or use more power at once. However, with 630 watts of solar panels and 100-200Ah batteries, it’s important to ensure that your battery capacity and solar input can support the increased load of a 3,000-watt inverter.