Most addresses
Dominion Energy Virginia
- Average home rate (2024)
- 14.09¢/kWh
- Paid for exported solar
- credited one-for-one at retail against your own annual usage
- Net-metered home solar, utility-wide
- 53,368
Honest numbers · Ashburn, VA
How much do solar panels cost in Ashburn, VA?
Solar panel cost in Ashburn runs about $2.90 per watt installed in 2026: a 9.5 kW system is about $27,550, and makes about 11,600 kWh a year here.
The short answer · as of August 2026
Solar in the Ashburn area costs about $2.90 per watt installed before incentives as of August 2026. A system near our ~9.5 kW average runs roughly $27,550 gross, which is also the net figure because Virginia has no residential solar income-tax credit. Payback depends on your Dominion Energy Virginia rate and on how much production you use on site, so we model it from your own bill rather than publishing a market average.
Looking for a solar company in Ashburn? See solar companies in Ashburn: our local team, costs and a free assessment.
Free roof and bill assessment
Takes under a minute. No pressure, and no guaranteed-savings math.
30+ yrscombined team experience
~450combined experienced installs
Lifetimefull-system + roof-penetration warranty
StatewideSC-based crews, callbacks within the hour
Local pricing reality
What drives price in Ashburn
Ashburn is one of the cheaper places in our territory to install well, and the reason is uniformity. The community is master-planned with thousands of near-identical modern roofs, so framing is predictable, the shading survey is quick, and there is rarely a roof-age conversation to have first. Those three things account for most of the variation in a quote elsewhere.
What you do not escape is the capacity question. HB 1255 raised the standby-charge threshold from 15 kW AC to 20 kW AC effective 1 July 2026, but Dominion had not revised its residential schedule at the time of writing. Ashburn households run larger than average and often want more array than 15 kW AC allows, which makes this the market where that lag most often becomes a live issue rather than a footnote.
The third driver is the review packet. Almost every Ashburn community has architectural guidelines, and while SB 504 limits how far they can go, designing for approval rather than for an appeal is faster and cheaper than the alternative.
Written for Ashburn specifically.
The numbers
What a system costs in Ashburn, by size
Priced at the local $2.90 per watt benchmark (August 2026) and shown with no state credit subtracted, because Virginia has none. These are worked examples to set expectations, not a quote, and not a promise of savings.
| System size | Cost before incentives | State credit | Net after credit |
|---|---|---|---|
| 6 kW | $17,400 | No state credit available | $17,400 |
| 9.5 kW Closest to our ~9.5 kW average system | $27,550 | No state credit available | $27,550 |
| 12 kW | $34,800 | No state credit available | $34,800 |
| 15 kW | $43,500 | No state credit available | $43,500 |
Note the third column carefully. Virginia has no state income tax credit for residential solar, and the federal residential credit expired for systems placed in service on or after 1 January 2026. If a quote you are comparing subtracts a tax credit from the price, ask in writing which credit it means. See what does apply in Ashburn.
Sizing
Why online calculators oversize Ashburn systems
Calculators assume a national-average system of 14.48 kW; our average is about 9.5 kW, which makes about 11,600 kWh a year here. Sizing past your own use earns only Dominion Energy's export rate.
The part competitors leave out
Your utility sets your payback more than your panels do
Most Ashburn homes are served by Dominion Energy Virginia , though NOVEC serves some Loudoun County addresses. Virginia still credits exported power one-for-one at retail against your annual usage; the State Corporation Commission preserved that for Dominion Energy Virginia customers in its 30 April 2026 NEM 2.0 ruling. That makes an array sized to your annual usage the natural design here, and a national payback figure for Ashburn still only a starting point.
About these rates in Ashburn
One-for-one retail net metering applies here, which is the opposite of the position in South Carolina and Georgia and it changes how a system should be designed: an array sized to offset your own annual consumption captures close to full value without needing storage to do it. The State Corporation Commission ruled on Dominion Energy Virginia’s NEM 2.0 filing on 30 April 2026 and preserved retail crediting, customer ownership of renewable energy certificates and free interconnection; customers connecting under NEM 2.0 pay roughly a dollar a month, and generation beyond your own annual use is cashed out at a lower rate at year end. There is no Virginia state tax credit and the federal residential credit expired for systems placed in service on or after 1 January 2026, so the export credit is the whole case. One caveat worth raising before anyone designs above 15 kW AC: HB 1255 raised the standby-charge threshold to 20 kW AC with effect from 1 July 2026, but a utility tariff update does not follow a statutory date automatically, and Dominion had not updated its residential schedule at the time of writing. Get the position in writing at the point you interconnect.
The mechanic is simple. Power you consume the moment you generate it offsets electricity you would have bought at the applicable residential retail rate, confirmed against your own bill. Power you export earns only credited one-for-one at retail against your own annual usage, and net energy metering under §56-594 also carries a rider of about $1 a month for customers connecting under NEM 2.0 plus a true-up in November that settles leftover credits at an avoided-cost rate. Daytime use is what pays here.
2026 incentives
What reduces this price this year
Virginia has no residential solar income-tax credit, so the net column above is the installed price. Residential solar of 25 kW or less is exempt from state and local property tax under §58.1-3661 as amended by SB 686, and many localities have adopted further exemptions by ordinance.
The 30% federal credit expired for systems placed in service on or after 1 January 2026. If a quote you are comparing still applies it, that quote is wrong by thousands.
Dominion Energy Virginia runs no upfront residential rebate, so there is nothing to stack in Ashburn.
Incentives specific to Ashburn · statewide mechanics and worked examples · financing
Line items
What moves a Ashburn solar quote
In Ashburn the swings come from roof age (the median Ashburn home was built in 1999), structural review and roof access, the 6 approvals Loudoun County requires, and whether Dominion Energy's export terms favour a smaller system.
Paying for it
Cash, loan, and the Virginia trap
On a 9.5 kW system at $27,550, ask for the cash and financed price side by side; a low loan rate often hides a dealer fee in the price.
The Virginia-specific trap: there is no state credit here to arrive at all. Any loan structured around a large first-year tax payment is built on money that is not coming, and that is a question to put to the lender in writing before you sign.
The honest part
When solar is not worth it in Ashburn
We would rather tell you now than after you have paid for a design
- Mature hardwood shades your best roof planes for much of the day, which is common in the older parts of the county.
- Your roof needs replacing within about five years.
- You are likely to move within five years.
- You need more than 15 kW AC and cannot get written confirmation that your utility has adopted the new 20 kW standby threshold yet.
- Your meter turns out to be on NOVEC rather than Dominion and the cooperative’s terms do not support the size you had in mind.
If two or more of these describe your home, we will say so during the assessment and we will not design a system to talk you past them. That is the whole point of a free, no-pressure assessment. If circumstances change, we will still be here.
Our work
What we have built, and what it means for Ashburn
Our pricing comes from ~450 combined experienced installs and a ~9.5 kW average system, priced for Loudoun County permitting.
Permits and approvals
What approval takes in Ashburn
6 approvals for a Ashburn system. We file every one.
- 01A building permit and a separate electrical permit from Loudoun County, or from the town where the address sits inside one
- 02An interconnection application to whichever utility serves your meter, Dominion Energy Virginia or NOVEC, on that utility’s own forms
- 03Written confirmation of the standby-charge position for any system above 15 kW AC
- 04HOA architectural review, which applies across most of the county’s master-planned communities, subject to the SB 504 limits
- 05An additional electrical permit where battery storage is included
- 06A county application for the solar equipment tax exemption once the system is operating and fully permitted
Your utility decides payback
Solar panel cost in Ashburn depends on your utility
Dominion Energy Virginia and NOVEC split Ashburn street by street. We read yours off your bill first.
Some addresses
NOVEC
- Average home rate (2024)
- 11.57¢/kWh
- Paid for exported solar
- Set by the co-op; we confirm it per account
- Net-metered home solar, utility-wide
- 3,602
For comparison: Virginia average 14.41¢ · U.S. average 16.48¢. Virginia had 69,553 net-metered home solar systems at the end of 2024.
Rates: US EIA Form EIA-861, 2024 averages incl. fixed charges, not tariffs. Export terms as of August 2026.
Ashburn sun, month by month
Solar panel cost in Ashburn: what the system makes
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
Ashburn homes and the cost of solar on an older roof
- 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
Ashburn solar cost FAQ
Straight answers on what solar costs in Ashburn
How much do solar panels cost in Ashburn, VA?
As of August 2026, solar in the Ashburn area runs about $2.90 per watt installed before incentives. A system close to our ~9.5 kW average works out to roughly $27,550 gross, which is also the net figure because Virginia has no residential solar income-tax credit. Your own number depends on your roof, your usage and your utility.
What is the payback period on solar in Ashburn?
We will not publish a payback figure for Ashburn that we cannot stand behind, because Dominion Energy Virginia's residential rate needs confirming against your own bill. What is certain is that exported power credits at credited one-for-one at retail against your own annual usage, well below retail, so the share of production you use on site drives your payback more than any equipment choice. At the assessment we model it against your actual rate.
Why is your average system smaller than the 14.48 kW the calculators show?
Because we size to your bill rather than to a sales quota. National cost calculators model 14.48 kW for this market, which inflates both the price and the projected savings for a typical home. Our combined install experience averages about 9.5 kW.
Does a solar system add to my property taxes in Ashburn?
Residential solar of 25 kW or less is exempt from state and local property tax under §58.1-3661 as amended by SB 686, and many localities have adopted further exemptions by ordinance. Confirm your own situation with Loudoun County and a tax professional, since eligibility depends on your circumstances.
What is the average solar panel cost in Ashburn for a 9.5 kW system?
About $27,550 installed at $2.90 per watt, with no Virginia credit to subtract. It makes about 11,600 kWh a year here unshaded. Dominion Energy households paid about 14.1¢ per kWh on average in 2024.
Does roof age change the solar panel cost in Ashburn?
The median Ashburn home was built in 1999, so many roofs are reaching their second half. We check remaining roof life before we design. A roof that needs replacing within a few years adds its cost to the project, so we price both together when it does.
How long is the payback on solar panel cost in Ashburn?
It depends on your Dominion Energy rate and how much of the 11,600 kWh a year you use at home, so we model it from your bill. Dominion Energy households paid about 14.1¢ per kWh on average in 2024.
Nearby
What solar costs near Ashburn
Free, no-pressure assessment
Get real numbers for your Ashburn roof
We will confirm your utility, measure your roof, read your actual usage history, and give you honest figures, with no guaranteed-savings math and no pressure.
Mon–Sat, 10am–6:30pm ET · We typically follow up within the hour.