I totally agree. Our 200A 240V main service panel ("MSP") in our 3,300 sq. ft. single family home is completely full with a 100A subpanel and load calc'd to the max since we added a 30A 120V RV outlet and 100A 240V Tesla HPWC. If we can ever figure out how to install solar in Sunny SoCal cost effectively on our Spanish tile roof, we'll upgrade to a 225A or 400A "solar ready" MSP and include it in the 30% Federal Tax Credit to offset a good chunk of the cost. Hoping the Tesla / Solar City solar roof pricing comes out soon.