Electrician-led solar company in Gainesville
Solar Panel Installation in Gainesville, VA
Gainesville is Prince William County, where the county marks qualifying residential solar permit fees as waived and exempts the equipment from real estate tax for five years. AJ Long Electric installs the array, the panel, the battery, and the EV charger as one job, with a master electrician on site.
A master electrician is on site for every solar project. $2.40–$2.85/W installed, cash. Prince William County marks qualifying solar permit fees as waived, and we file the Dominion or NOVEC interconnection for you.
Content reviewed 2026-09-24
Google reviews
1,463 across four profiles
Family-owned
Since 1996
Licensed and insured
VA 2705031092
On every install
Master electrician on site
Backed by
Workmanship warranty
Cost
What solar costs in Gainesville
A typical 8 to 12 kW rooftop system installs for $19,000–$34,000 cash, which is $2.40–$2.85/W. These are cash installed prices for modules, racking, inverter, and interconnection labor. Two things keep the number down: no commissioned sales team and no subcontracted electrical.
A Gainesville roof array prices inside the published band once the county pathways are laid out. A standing seam roof or a ground mount adds the sealed engineering the county requires, on its own line. When the panel needs a heavy-up before the backfed breaker fits, it is on the same proposal at $3,500–$7,500.
| System size | Typical annual production | Installed price, cash |
|---|---|---|
| 8 kW | About 10,000 kWh | $19,200–$22,800 |
| 10 kW | About 12,500 kWh | $24,000–$28,500 |
| 12 kW | About 15,000 kWh | $28,800–$34,200 |
Production assumes about 1,250 kWh per kW per year for a typical Northern Virginia roof. Your bill and your roof set the real number.
Incentives
Gainesville solar incentives in 2026
The federal residential credit does not apply to systems installed after December 31, 2025. What is left for a Gainesville address is local, and every item below is built into the proposal.
Prince William County exempts Gainesville solar equipment from real estate tax for five years, figured on the certified installed cost at the base rate.
Qualifying residential solar permits in Gainesville show the fee as waived under the county's Board of County Supervisors fee reduction.
Prince William County promotes Solarize PWC with the Local Energy Alliance Program. Our published cash band stands on its own, and we price against a co-op quote line by line.
Dominion credits a Gainesville array one for one with the SRECs kept by the owner under the SCC order of April 30, 2026, and NOVEC runs its own net metering program for NOVEC addresses.
Why an electrician
Why Gainesville homeowners choose an electrician for solar
Prince William's pathway rule decides where the modules go, and the electrical decides whether they work: the string layout, the backfed breaker, and the disconnect. We are the electrical contractor, and a master electrician is on site for every Gainesville install.
The county inspects a building final and an electrical final on every residential solar job. Both are our work, so nobody waits on a subcontractor to fix a label or a grounding detail.
The price is a cash installed number with no commission in it. The sealed engineering, the HOA package, the heavy-up, and the EV charger are itemized on one Gainesville proposal.
Solar makes sense in Gainesville when
- Your Gainesville home is in a planned community with architectural review, and you want the HOA package prepared before the county permit.
- Your roof is standing seam metal or your lot suits a ground mount, and you want the sealed engineering the county asks for handled by the contractor.
- You want the county fee reduction and the five-year tax exemption built into a cash price you can compare line by line.
Gainesville and nearby areas we serve
Gainesville and the western Prince William communities around it.
Google reviews
What Gainesville homeowners say
Google reviews from panel, generator hookup, and EV charger jobs across western Prince William. Solar reviews land here as installs finish.
I hired AJ Long to install a Tesla wall connector in my garage. The entire experience was fantastic! They gave me a quote over email, have a convenient system for scheduling appointments and sending text updates, arrived on time, and did an excellent job.
Evan was the best! He was fast and installed my EV charger exactly where I wanted it. He also came out to do an estimate and told me exactly what he would do and how long it would take him. He was professional and nice!
We had a great experience being able to get power restored to our house with a breaker box replacement. Visit was scheduled within a couple days and diagnostic was free. I got a reasonable quote that was right around what a couple other companies priced, but half of another competitor who did the initial assessment. Very professional electrician that got everything done in a day, and appreciated that he also helped put dry wall back up for me to spackle/paint. Felt like my options were honestly laid out and had a good discussion around the contract before repairs began. Owner felt trustworthy
Gainesville solar questions
Does Prince William County charge a solar permit fee in Gainesville?
The county runs a residential solar fee reduction set by the Board of County Supervisors, and qualifying residential solar receipts show the payment as BOCS Waived. The county extended the program beyond June 2024. We file through the ePortal and show the permit line on the proposal.
How long does the Prince William solar tax exemption last for a Gainesville home?
Five years. The exemption starts January 1 of the year after approval, it is based on the certified cost of the equipment and installation, and the county applies it at the base real estate rate. You file with the Building Development Division, and we give you the plans, the specifications, and the cost documentation.
What roof rules does Prince William County apply to a Gainesville array?
Two 36-inch pathways on separate roof planes from the eave to the ridge, one of them on the street or driveway side, and sealed engineering for standing seam metal roofs. Plans that follow the county typical layout get expedited plan review, about half the normal time.
Can my Gainesville HOA stop me from going solar?
Virginia Code 55.1-1820.1 stops an association from banning rooftop solar unless the recorded declaration does, and it treats restrictions that raise the cost more than 5 percent or cut production more than 10 percent as unreasonable. We prepare the Gainesville HOA package with the layout and module color before the county permit.
We handle this for you
Prince William permits, Dominion, and NOVEC in Gainesville
Gainesville is one county with clear rules on roof pathways, engineering, and fees. Here is how a Gainesville solar job moves.
- 01
Gainesville is unincorporated Prince William County. The building and electrical application goes in through the county ePortal, and qualifying residential solar receipts show the fee as waived under the Board of County Supervisors fee reduction, which the county extended beyond June 2024.
- 02
Prince William County requires two 36-inch access pathways on separate roof planes from the eave to the ridge, and sealed engineering for standing seam metal roofs and ground mounts. We lay out the array around the pathways before we count modules.
- 03
Gainesville is Dominion or NOVEC depending on your address. NOVEC lists Prince William County in its territory and runs its Gainesville Technical Center here. We read the utility off your bill and file with the right one.
We handle this for you
The offices and programs
Click through for the official pages. We do the filing, the scheduling, and the follow-up.
Utility interconnection
- Dominion Energy Virginia: Net MeteringApplies when your bill shows Dominion Energy Virginia as the serving utility.We file the interconnection and request permission to operate after the inspection passes. Dominion credits exported power one for one under the SCC order of April 30, 2026.Source reviewed 2026-08-26
- NOVEC: Net MeteringApplies when your bill shows NOVEC as the serving utility.We file the cooperative interconnection and close out permission to operate after the inspection.Source reviewed 2026-08-26
Continue the plan
Connect the local and electrical decisions
Review the regional offer, combined solar-and-battery design, or the existing electrical service-area context for Gainesville.
Next step
Start with your bill and your address
Send a recent electric bill and the address. A preliminary system size and price range comes back first, then a site visit with a master electrician turns it into a written proposal.
Solar energy company
AJ Long Electric Solar
AJ Long Electric
7138 Little River Turnpike #305
Annandale, VA 22003
Serving Annandale, Fairfax County, and Northern Virginia.