How to buy well · Ashburn, VA
Buying solar panels in Ashburn, VA
Buying solar panels in Ashburn? Expect about $2.90 per watt installed and about 11,600 kWh a year from a 9.5 kW system; any quote far outside that needs explaining.
The short version
In Ashburn, start with 12 months of Dominion Energy Virginia bills and the roof, then get three quotes priced near the $2.90 per watt benchmark, each naming Dominion Energy Virginia's export rate (credited one-for-one at retail against your own annual usage) and the 6 Loudoun County approvals.
Looking for a solar company in Ashburn? See solar companies in Ashburn: our local team, costs and a free assessment.
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Local buying reality
What buying here involves in Ashburn
Three questions separate a serious Ashburn quote from a weak one. What is the standby-charge position for the size proposed, in writing, given the tariff had not caught up with HB 1255 at the time of writing. Which utility serves the meter, Dominion or NOVEC, since a cooperative runs its own programme within the state framework. And has the installer read your community’s architectural guidelines before designing rather than after.
A fourth is about money that belongs to you: Loudoun County’s solar equipment tax exemption is scaled to nameplate capacity and only processed once the system is operating and fully permitted. An installer who has not raised it has left it on the table.
Written for Ashburn specifically.
Local to Ashburn
Five things to settle before you take a quote seriously
- 01
Your meter: Dominion Energy Virginia, probably
NOVEC serves some Loudoun County addresses, so this is worth confirming from the bill rather than the postcode. Exports currently credit at credited one-for-one at retail against your own annual usage against the applicable residential retail rate, confirmed against your own bill (August 2026).
- 02
Local benchmark: $2.90 per watt
A statewide figure, installed, before incentives, as of August 2026.
- 03
What the roof imposes here
Inland Mid-Atlantic. No salt exposure, with snow loading a real racking input. The roof stock is recent enough that framing is rarely the constraint; the care goes into flashing detail and freeze-thaw.
- 04
What shades the design here
Ashburn is master-planned and largely open, with thousands of near-identical modern roofs. That uniformity is a genuine advantage: the shading survey is quick and the structural work is predictable.
- 05
Who has to approve it
Loudoun County has adopted a solar equipment tax exemption, and the terms are worth knowing before you apply: the amount and duration are tied to the system’s nameplate capacity in DC watts, the equipment must be certified by the county as used primarily for collecting or generating energy, and the county will not process an application until the system is operating and has passed all required permits. Under SB 504 a Virginia association may impose only reasonable restrictions on rooftop solar, unreasonable being a cost increase above 5% or a generation loss above 10%.
- 06
Permits in Loudoun County
A building permit and a separate electrical permit from Loudoun County, or from the town where the address sits inside one. An interconnection application to whichever utility serves your meter, Dominion Energy Virginia or NOVEC, on that utility’s own forms.
In order
The steps to buying solar in Ashburn
Pull 12 months of Dominion Energy bills, check roof life (the median Ashburn home was built in 1999), confirm your utility, get three like-for-like quotes, then the Loudoun County permits and Dominion Energy approval.
Compare
The numbers that make quotes comparable
Price per watt (about $2.90 per watt here), size in kW DC, equipment models, annual kWh, cash price beside the financed price, and every warranty.
Red flags
Red flags in the Ashburn market
Same-day pressure, a 2026 price that subtracts the federal homeowner credit, savings modelled on a utility other than Dominion Energy, and no annual kWh figure (about 11,600 kWh is the unshaded ceiling for 9.5 kW here).
Own or lease
Why we point people toward owning
Owning keeps the system as part of the house; a lease or PPA keeps it with the provider and passes to your buyer.
Buying from us
What is included, plainly
A design from your Dominion Energy bills, all 6 Loudoun County approvals, the Dominion Energy interconnection, installation by our own crews, and the lifetime full-system and roof-penetration warranty.
Ashburn sun, month by month
Buying solar in Ashburn: what a system should make
About 11,600 kWh a year from a south-facing roof with no shade. July is the strongest month at about 1,226 kWh and December the weakest at about 593 kWh.
Your roof will differ. Ashburn is master-planned and largely open, with thousands of near-identical modern roofs.
Estimate: NASA POWER sun data for Ashburn, PVWatts model, south-facing, no shade.
Homes in Ashburn
Buying solar in Ashburn: what the homes here mean
- 11,694owner-occupied homes (69% of 17,067)
- 1999median year homes were built
- 37%of homes are single-family detached
- $659kmedian owner-occupied home value
- The median Ashburn home was built in 1999, so many roofs are reaching their second half. We check remaining roof life before we design.
- Only 37% of homes are single-family detached; in the other 63% the association or shared roof decides first.
- 11,694 Ashburn households own their home, the ones who can install and claim the system as an asset.
- A 9.5 kW system at about $27,550 is roughly 4% of the median $659k Ashburn home value.
Source: US Census Bureau, American Community Survey 2023 5-year estimates for Ashburn CDP. Estimates, rounded.
Our work
Real systems our crews have installed
Our own job photos, not stock or renders. Inland Mid-Atlantic.
ResidentialClean rooftop layoutBlack-framed panels
ResidentialMulti-facet metal roofWooded aerial view
ResidentialFull black-on-blackPoolside single-story home
ResidentialStanding-seam metal roofLakeside multi-facet install
ResidentialDetached garage arrayFarmhouse-style home
ResidentialShingle rooftop arrayBackyard-facing slope
Photo locations are not published.
Free assessment · Ashburn, VA
Get a straight answer for your Ashburn roof
We read your bill, confirm your Dominion Energy Virginia export terms, and tell you what your roof in Loudoun County will actually carry, and say so if it will not pay.
- Most addresses here are on Dominion Energy Virginia, but NOVEC serves some Loudoun County addresses. We confirm yours from your bill before we quote anything
- A building permit and a separate electrical permit from Loudoun County, or from the town where the address sits inside one: we pull it and manage the inspections
- Loudoun County has adopted a solar equipment tax exemption, and the terms are worth knowing before you apply: the amount and duration are tied to the system’s nameplate capacity in DC watts, the equipment must be certified by the county as used primarily for collecting or generating energy, and the county will not process an application until the system is operating and has passed all required permits.
Prefer to talk? (843) 310-1128
Buying solar in Ashburn
Questions worth asking before you sign
How long does buying and installing solar take in Ashburn?
Installation itself is usually days. The overall timeline is set by permitting with Loudoun County and the Dominion Energy Virginia interconnection queue, neither of which any installer fully controls.
Do I have to buy the biggest system I can fit?
No, and you usually should not. Because Dominion Energy Virginia credits exports at credited one-for-one at retail against your own annual usage against the applicable residential retail rate, confirmed against your own bill, production beyond your own consumption is worth a fraction of what the panels cost. We size to your bill rather than your roof area.
What should buying solar panels in Ashburn cost per watt?
About $2.90 per watt installed as of August 2026, so a 9.5 kW system is about $27,550. A quote well above that should explain why.
How much power should I expect after buying solar panels in Ashburn?
About 11,600 kWh a year from a 9.5 kW south-facing system with no shade, peaking around 1,226 kWh in the best month. Any quote should state its own annual kWh figure.
Where do I start buying solar panels in Ashburn?
With 12 months of Dominion Energy bills and a roof check (the median Ashburn home was built in 1999), then three quotes that each state annual kWh, price per watt and the 6 Loudoun County approvals.
Free, no-pressure assessment
Ask us the hard questions about your Ashburn project
Bring the list from this page. We will give you price per watt, exact equipment, our production methodology, and the cash price separately from the financed price, in writing.
Mon–Sat, 10am–6:30pm ET · We typically follow up within the hour.