Overview
System type: Batteryless, grid-tied solar-electric
Location: Albany, New Hampshire
Solar resource: 4.6 average daily peak sun-hours
Record low temperature: -29°F
Highest average high temperature: 80°F
Average monthly production: 1,217 AC kWh
Utility electricity offset annually: 105% for first year
Photovoltaic System Components
Modules: 43 Schott, 300 W STC, 50.6 Vmp, 5.9 A Imp, 63.2 Voc, 6.5 A Isc
Array: Seven subarrays—three five-module series strings; two six-module series strings; and two eight-module series strings, 12.9 kW DC STC total
Array combiner box: Square D with 10 A breakers
Array installation: Solar Design Associates’ mounts installed on south-facing roofs, 30° tilt and 12° tilt
Inverters: Two SMA America Sunny Boy, 3,800 W rated output, 500 VDC maximum input, 200–400 VDC MPPT operating range, 240 VAC output; two SMA America Sunny Boy, 2,500 W rated output, 600 VDC maximum input, 250–550 VDC MPPT operating range, 240 VAC output
System performance metering: Sunny Boy Control
