APUA Solar Savings Calculator — Antigua & Barbuda

⚡ Your Electricity Bill

Monthly APUA bill (look at your last bill)

EC$

Customer type

🔆 Solar System

System size (kW) — or leave blank to auto-size

Production factor (kWh/kW/year — Antigua avg: 1,600)

APUA retail rate (EC¢/kWh)

Net billing rate (EC¢/kWh exported to grid)

💰 Costs & Finance

Installed cost (EC$ per watt)

Monthly loan payment (EC$ — enter 0 if paying cash)

Annual electricity rate increase (%/year)

1%4.0%10%

Analysis period

5 yrs25 yrs25 yrs

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Recommended system size for your home

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Monthly Savings

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Payback Period

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Total Savings

System cost —

Annual solar production —

Est. annual savings (year 1) —

Bill reduction —

Self-consumed solar (kWh/yr) —

Exported to grid (kWh/yr) —

Net billing credit (year 1) —

Remaining APUA bill (year 1) —

Loan payments (year 1) —

Net cash flow (year 1) —

25-year cumulative savings —

Ready to go solar?

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Estimates based on APUA tariff data and Antigua solar irradiance averages. Actual savings vary by usage, shading, and system design. Not a formal engineering assessment.