Updated
Solar in Fairfax County, VA runs on Dominion's annual one-to-one net metering, which the SCC kept on April 30, 2026. Any surplus left at the end of the 12-month period is cashed out at the avoided-cost rate, so systems sized to yearly usage keep the most value. Virginia's 2026 SRECs were priced near $17.
Sizing under the 2026 SCC order
The State Corporation Commission's April 2026 order kept annual kilowatt-hour netting for Dominion customers and added a $1 monthly administrative charge for new net metering customers. Excess still on the account after twelve months is paid out at the avoided-cost rate, well below the retail rate.
That makes accurate sizing the main design decision. We start from a year of usage, add planned loads like an EV or heat pump, and stop short of building surplus you would sell back cheaply.
Sources: ajlongelectric.com
Certificates and add-ons
Virginia SRECs for the 2026 vintage were priced at $17 on the Flett Exchange board in September 2026. We register systems so the certificates are captured, but we do not count on them to make the numbers work.
Larger Fairfax lots also open options DC rowhouses rarely have, such as a ground-mount array or a detached-garage charger, and we price those against the rooftop.
Sources: ajlongelectric.com
Common Fairfax County projects
Open the job that matches your plans.
Fairfax County solar questions
Yes, the April 30, 2026 SCC order kept annual one-to-one netting.
It is cashed out at the avoided-cost rate after the 12-month period.
For planned loads like an EV, yes; beyond that, surplus earns little.
On larger lots with open sun, often. We compare it with the roof.
The 2026 vintage was priced near $17 in September 2026.