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 · Sterling, VA
How much do solar panels cost in Sterling, VA?
Solar panel cost in Sterling 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 Sterling 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 Sterling? See solar companies in Sterling: 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 Sterling
Sterling was not built all at once, and that is the main thing that separates a quote here from one in Ashburn. The housing spans several decades, so roof age, framing and shading vary street by street rather than being uniform. The survey therefore does real work rather than confirming what the community already tells you.
Roof age is the specific variable to settle early. Where a roof has under a decade left, the sensible sequence is the roof first or both together, because removing and resetting an array later is a cost paid twice. That is the difference between installing once and installing twice, rather than an upsell.
Everything else follows the Loudoun pattern: retail net metering makes a conventionally sized array work, the standby-charge question applies above 15 kW AC while the tariff catches up with HB 1255, and the county permits the work outside any town limits.
Written for Sterling specifically.
The numbers
What a system costs in Sterling, 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 Sterling.
Sizing
Why online calculators oversize Sterling 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 Sterling 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 Sterling still only a starting point.
About these rates in Sterling
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 Sterling.
Incentives specific to Sterling · statewide mechanics and worked examples · financing
Line items
What moves a Sterling solar quote
In Sterling the swings come from roof age (the median Sterling home was built in 1981), 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 Sterling
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 Sterling
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 Sterling
6 approvals for a Sterling 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 Sterling depends on your utility
Dominion Energy Virginia and NOVEC split Sterling 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.
Sterling sun, month by month
Solar panel cost in Sterling: 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. A mix of established neighbourhoods with mature trees and newer open development, decided street by street rather than across the whole area.
Estimate: NASA POWER sun data for Sterling, PVWatts model, south-facing, no shade.
Homes in Sterling
Sterling homes and the cost of solar on an older roof
- 7,290owner-occupied homes (75% of 9,684)
- 1981median year homes were built
- 51%of homes are single-family detached
- $508kmedian owner-occupied home value
- Half of Sterling homes are more than 45 years old, so the roof check matters here: a roof with under ten years left should be replaced before solar goes on, or at the same time.
- Only 51% of homes are single-family detached; in the other 49% the association or shared roof decides first.
- 7,290 Sterling 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 5% of the median $508k Sterling home value.
Source: US Census Bureau, American Community Survey 2023 5-year estimates for Sterling CDP. Estimates, rounded.
Our work
Real systems our crews have installed
Our own job photos, not stock or renders. Inland Mid-Atlantic.
ResidentialShingle rooftop arrayBackyard-facing slope
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
Photo locations are not published.
Free assessment · Sterling, VA
Get a straight answer for your Sterling 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
Sterling solar cost FAQ
Straight answers on what solar costs in Sterling
How much do solar panels cost in Sterling, VA?
As of August 2026, solar in the Sterling 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 Sterling?
We will not publish a payback figure for Sterling 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 Sterling?
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 Sterling 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 Sterling?
Half of Sterling homes are more than 45 years old, so the roof check matters here: a roof with under ten years left should be replaced before solar goes on, or at the same time. 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 Sterling?
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 Sterling
Free, no-pressure assessment
Get real numbers for your Sterling 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.