Community Solar Farm Calculator

Revenue from subscriber count and credit allocation.

Farm capacity (kW DC)

Peak sun hours (PSH)

System derate factor

Number of subscribers

Retail electricity rate ($/kWh)

Subscriber discount (%)

Installed cost ($/W DC)

Annual subscriber churn (%)

Tab to move between fields

Net annual revenue ($)

$306,729

Annual production (kWh)2,847,000

kWh per subscriber14,235

Gross annual revenue ($)$314,594

Subscriber savings ($/yr)$278

Total project cost ($)$2,000,000

Simple payback (years)6.5

25-year ROI (%)283.4%

How to Use This Calculator

Enter the farm total DC capacity in kW and peak sun hours.
Set the number of subscribers and the retail electricity rate they currently pay.
Enter the subscriber discount percentage and installed cost per watt.
Set the annual subscriber churn rate.
Review net annual revenue, subscriber savings per year, and simple payback to evaluate project viability.

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