The general idea is at least for small installations like houses, to bridge with batteries. (rabett.blogspot.ru)
An estimate of total PV capacity must therefore account for many small installations (often referred to as distributed solar capacity). (eia.gov)
However, for space - constrained roofs and small installations where PV modules make up a small portion of total system prices, higher efficiency products often pay for themselves. (pv-magazine.com)