As a point of reference, it is about 4000 km from LA to New York. Assuming a linear drop-off (probably not true, but close enough), you would only lose 10% cros

As a point of reference, it is about 4000 km from LA to New York. Assuming a linear drop-off (probably not true, but close enough), you would only lose 10% crossing the country. Solar panels might be decreasing in cost 10% annually, so over-building to accommodate that seems entirely feasible.