Solar O&M Cost Calculator

Annual O&M cost from system size.

System capacity (kW DC)

Fixed O&M ($/kW-DC/yr)

Peak sun hours (PSH)

System derate factor

Inverter reserve ($/kWh)

Annual degradation (%)

Analysis period (years)

O&M cost escalation (%/yr)

Tab to move between fields

Year 1 total O&M ($)

$13,340

Year 1 O&M cost ($/kWh)0.02

Year 1 production (kWh)730,000

Lifetime O&M cost ($)$442,942

Lifetime O&M ($/kWh)0.03

Final year O&M ($)$22,931

Final year O&M ($/kWh)0.04

Lifetime production (kWh)17,195,845

Degradation production loss (%)5.8%

How to Use This Calculator

Enter the system capacity in kW DC and fixed O&M cost per kW per year.
Set peak sun hours, system derate factor, and annual module degradation rate.
Enter inverter reserve cost per kWh and O&M cost escalation rate.
Set the analysis period in years.
Review Year 1 O&M cost per kWh and lifetime O&M total to inform LCOE calculations.

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