How Many Peak Sun Hours in Delaware? (Winter vs. Summer)
Many homeowners worry that Delaware's cloudy days and cold coastal winters make solar inefficient. However, solar engineers measure viability in "peak sun hours"—the specific times when solar intensity reaches 1,000 watts per square meter.
The Delaware Solar Reality
Delaware receives an average of 4 to 4.5 peak sun hours per day. While this is lower than desert states, it is more than enough to offset 100% of a home's electricity usage when the system is correctly designed. Solar panels are highly efficient in cool temperatures, meaning crisp, sunny winter days still yield significant production.
Maximizing the Net Metering Cycle
During the long days of July and August, your panels will vastly overproduce. Thanks to Delaware's 1:1 net metering laws, this excess summer power is credited to your account and covers the slight dip in production during the shorter, snowier days of January and February.
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