Quick answer
The practical explanation
Not necessarily. Even a system designed to offset substantial annual usage may leave fixed utility charges, seasonal differences, financing payments, or charges for electricity drawn from the grid. The result depends on local rate rules and actual production and consumption.
What to know
Three points to keep in mind
- Review fixed and variable charges on the current bill.
- Ask how exported electricity is credited by the utility.
- Compare the solar estimate with a full year of household usage.
For your home
A site-specific answer still matters
Solar results and service needs depend on the roof, equipment, shade, household electricity use, utility requirements, and the condition of the existing system. Use this guide as a starting point, then have the property and equipment evaluated before making a major decision.
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Authoritative references
This article summarizes general consumer information and is not tax, legal, insurance, engineering, or utility-rate advice.