In the quest to reach grid parity – generally defined as getting the cost of PV below $1/Watt – the focus has largely been on increasing cell and module efficiency, while reducing manufacturing costs. Another important aspect, however, is the cost of installation and maintenance, and the efficiency of the overall PV installation. A sharpened focus on the so-called "balance-of-systems", which includes wiring, switches, support racks, inverters and even the land, could result in significant cost savings.