Overview
System type: Batteryless, grid-tied solar-electric
Location: Monument, Colorado
Solar resource: 5.48 average daily peak sun-hours
Record low temperature: -27°F
Average high temperature: 82°F
Average monthly production: 632 AC kWh (Measured)
Utility electricity offset annually: 118%
PV System Components
Modules: 20 Sharp ND-224UC1, 224 W STC, 29.3 Vmp, 7.66 Imp, 36.6 Voc, 8.33 Isc
Array: Two, 10-module parallel strings, 4,480 W STC total, 240 VAC, 16 A (AC) nominal output
Array installation: S5! metal roof clamps and Prosolar rails on south-facing roof, 39.8° tilt
Inverters: 20 Enphase M190 microinverters, 190 W rated output, 56 VDC maximum input, 22–40 VDC MPPT operating range, 240 VAC output
System performance metering: Enphase Envoy Communications Gateway plus Enphase Enlighten Web-based software
System Costs
Initial Cost: $23,805
Less Incentives, Rebates & Tax Credits: $7,141 (federal tax credit); $4,500 (“Recharge Colorado” rebate)
Final installed cost: $12,163
