Delaware Solar Panel Savings Calculator

Delaware Solar Panel Savings Overview

Delaware receives an average of 4.2 peak sun hours per day, providing a solid foundation for residential solar energy. With electricity rates averaging 14.9¢ per kWh — near the national average — solar offers competitive savings. The typical Delaware homeowner with a 6kW system can expect to save approximately $1,280 per year.

Solar Energy Production in Delaware

A standard 6kW residential solar panel system in Delaware produces approximately 7,358 kWh per year. This accounts for a system efficiency factor of 80%, which includes panel degradation, inverter losses, and temperature effects. While 4.2 peak sun hours is modest compared to sunbelt states, modern high-efficiency panels can still produce meaningful energy savings in Delaware.

Delaware Electricity Rates and Solar Context

The average residential electricity rate in Delaware is 14.9¢ per kWh according to EIA data. While this rate is below the national average, electricity costs are rising approximately 2-3% per year. Over a 25-year system lifetime, your cumulative savings will still be substantial. With utility rates increasing annually, your solar savings grow each year.

Delaware Solar Incentive Programs

Green Energy Program grant ($700/kW up to $3,500). No sales tax. SRECs available. Federal 30% ITC. All Delaware residents are eligible for the federal 30% Investment Tax Credit (ITC), which reduces the cost of a solar system by 30% of the total installed price. Delaware also offers full retail net metering, allowing homeowners to earn credits for excess solar energy sent back to the grid.

Net Metering in Delaware

Delaware has full retail net metering, which is a significant financial benefit for solar homeowners. Under full retail net metering, you receive credit at the full retail electricity rate for every kilowatt-hour of excess solar energy you export to the grid. This is the most favorable policy for solar homeowners.

Best Cities for Solar in Delaware

The best cities for solar panels in Delaware include Wilmington, Dover, Newark, Middletown, Bear. Solar production can vary by location within the state due to differences in cloud cover, local shading, and microclimates. Southern-facing roofs with minimal shading produce the most energy. Homeowners in Wilmington and Dover can typically expect production close to the state average of 4.2 peak sun hours per day.

How Delaware Compares to Neighboring States

Compared to neighboring states, Delaware (14.9¢/kWh, 4.2 sun hours) has comparable sun exposure and has lower electricity rates. See how solar savings compare in Maryland, Pennsylvania, and New Jersey.