: Verify the AC rating (kW), the number of Maximum Power Point Trackers (MPPTs), and available warranty extensions.

: Ensure you have DC isolator switches and combiner boxes rated for your system's voltage (e.g., 1000V) to allow for safe maintenance. Planning Your Capacity

: Be aware of the "33% rule," which often limits rooftop arrays to covering only one-third of the roof area to maintain fire-path clearances.

: A 5,000-watt solar generator is typically enough to run lights, a fridge, Wi-Fi, and small appliances, but may not handle high-wattage items like central AC.

: Check for the total array size in kilowatts (kW), individual panel wattage, and both product and performance warranties.

When reviewing listings on sites like Amazon or specialized energy retailers, ensure the following hardware is included: