solar-savings-calculator

Your Electricity Details

Monthly Electric Bill ?Enter your average monthly electricity bill. We use this to estimate your energy usage and size a solar system.

Average monthly electricity bill before solar.

Your State ?Selecting your state auto-fills the average electricity rate and peak sun hours for your area.

Auto-fills electricity rate and peak sun hours.

Electricity Rate ?Your utility's average rate per kWh. Auto-filled from state data but you can adjust it.

$ /kWh

Peak Sun Hours ?Hours per day when sunlight intensity is strong enough for maximum solar output. Varies by location.

hr/day

System Size

Recommended System Size ?Auto-calculated to offset your estimated annual usage. You can override this value.

Based on your bill and location. Edit to override.

Annual Rate Escalation ?US electricity rates have historically risen 2-5% per year. We default to 3.5% based on recent trends.

3.5%

0%10%

Annual Panel Degradation ?Solar panels lose approximately 0.5% of production per year. Premium panels may degrade as little as 0.3%/year.

0.5%

0%1%

Net Metering ?A utility program that credits you for excess solar power sent to the grid. Full means 1:1 retail credit. Partial means reduced export credit. Check your utility.

Self-Consumption Ratio ?Percentage of solar production used directly in your home. Higher self-consumption = higher savings when net metering is reduced.

80%

50%100%

ITC Update: The 30% residential federal ITC (Section 25D) expired December 31, 2025. This calculator shows gross electricity savings only. Commercial systems may still qualify under Section 48E.

Estimated 25-Year Total Savings

Cumulative electricity savings over 25 years

Month 1

First month savings

Year 1

First full year

Year 5

Cumulative 5-year

Year 10

Cumulative 10-year

Bill Offset

% of bill eliminated

0 kW

System Size

Recommended system

Annual Production

kWh/year

25-Year Savings Projection

Cumulative savings vs. what you would have paid without solar

Cumulative Savings With Solar

Cumulative Cost Without Solar

Year-by-Year Savings Breakdown

Year	Rate ($/kWh)	Production (kWh)	Annual Savings	Cumulative

Environmental Impact (25-Year)

lbs CO2 Avoided

25-year total offset

Trees Equivalent

Trees planted per year

Cars Removed

Cars off road per year

How We Calculated This

SurgePV Platform

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