Overview
System type: Grid-tied, solar- and wind-electric with battery backup
Location: Ellenburg, New York
Solar resource: 4.3 average daily peak sun-hours
Average annual PV system production: 10,400 AC KWH
Wind resource: 12 to 13 mph average wind speed
Average annual wind system production: 8,800 AC KWH
Utility electricity offset: 100% plus
PV System
Modules: 80, BP 3125, 125 W STC, 17.6 Vmp
Array: Five subarrays of 16 modules each, four modules per series string, 70.4 Vmp, 10 KW STC total
Array installation: UniRac SolarMount racks on south-facing roof, 45° tilt
Array combiner box: Five OutBack PSPV with four 15 A breakers each
Batteries: 36 Rolls Surrette KS-21, 2 VDC nominal, 1,000 AH at 20-hour rate, flooded lead-acid
Battery bank: Three series strings, 3,000 AH total at 24 VDC nominal
Charge controllers: Five OutBack MX60, 60 A, MPPT, 70.4 Vmp input, 24 VDC nominal output
Inverters: Two Xantrex Series 2 SW4024 inverters with Grid Tie Interfaces (GTIs), 4 KW each, 8 KW total, 24 VDC nominal input, 120/240 VAC output
System performance metering: Two form 12S AC KWH meters
Wind System
Turbine: Bergey Excel-S
Rotor diameter: 23 ft.
Rated energy output: 10,800 DC KWH/month at 12 mph (5.4 m/s)
Tower: Bergey XLG37 guyed-lattice, 120 feet
Inverter: Xantrex GridTek 10, 10 KW, batteryless grid-tie, 240 VAC output
System performance metering: AC KWH meter
