Overview
System type: Off-grid, battery-based solar-electric
Location: Near Canyon City, Oregon
Solar resource: 5 average daily peak sun-hours
Production: 560 AC KWH per month average
Photovoltaics
Modules: Forty-four BP 80s, 85s, and 170s; 80, 85, and 170 W STC; 12 or 24 VDC nominal, depending on module
Array: Fifteen, 2- or 4-module series strings (depending on module voltage), 5,000 W STC total, 48 VDC nominal
Array installation: UniRac, General Specialties, and home-made pole mounts; seasonal tilt: 55 degrees in summer, 90 degrees in winter
Energy Storage
Batteries: Single string of 12 Concorde PVX-6480T, 2 VDC nominal, 640 AH at 20-hour rate, sealed AGM
Battery bank: 24 VDC nominal, 640 AH total
Balance of System
Charge controllers: Two networked Apollo T80s, 80 A, MPPT, 48 VDC nominal input, 24 VDC nominal output
Inverters: OutBack VFX3524, Trace SW4024, Magnum MagnaSine, 24 VDC nominal input, 120 VAC output
System performance metering: E-Meter battery monitor and 9 analog meters
