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State rules that apply
- What the rule says: “until the rated generating capacity owned and operated by eligible customer–generators in the State reaches 3,000 megawatts”[1]
What it means for sizing and batteries
When exports earn close to the retail price, sizing the system to cover your yearly use is usually the best value, and a battery is mainly for backup rather than savings.
The calculator uses the statewide rule until we add utility rates. See what solar costs in Maryland.
FAQ
Frequently asked questions
Does Maryland have net metering?
Maryland law (PUA 7-306) requires electric companies to offer net metering until statewide net-metered capacity reaches 3,000 MW; excess generation carries forward, and customers can take an annual payout (valued at the generation/commodity portion of the rate, not full retail) or, since 2023, accrue credits indefinitely. The PSC reported about 51% of the cap used as of mid-2025, and successor-program bills were pending in 2026.
sources
[ 1 ]Every number on this page links to one of these sources. Dates show when we last checked each one.
- Maryland Code, Public Utilities 7-306mgaleg.maryland.gov · checked Nov 5, 2026
Tariffs last re-checked November 5, 2026.