How much does solar cost in Grand Island, NY?

Cash pricing in Grand Island runs $2.8 to $3.7 per watt before incentives, which puts a 9.5 kW system at roughly $26,600 to $35,150. Financed proposals for the same hardware typically land $0.60 to $1.20 per watt higher because a dealer fee is built into the price.

How much electricity will solar actually produce in Grand Island?

A 9.5 kW system on a good Grand Island roof produces roughly 10,355 to 11,685 kWh a year, based on a specific yield of 1090 to 1230 kWh per kW-DC. December through February contributes only about 11% of the annual total, so a proposal built on summer numbers overstates what you will see.

Is the 30% federal solar tax credit still available in Grand Island?

Not for a direct purchase. The Section 25D residential credit terminated for expenditures after December 31, 2025. New York's own IT-255 credit is unaffected — 25% of qualified equipment cost, capped at $5,000 lifetime. If a Grand Island proposal still shows a 30% federal credit, ask for the IRS guidance that allows it.

What is the payback period on solar in Grand Island?

Simple payback runs about 8.8 to 17.9 years on a cash purchase and 10.9 to 23.2 years financed, before interest. That is a comparison tool, not a projection — it ignores degradation, rate escalation, and maintenance.

Does snow make solar not worth it in Grand Island?

Snow costs less production than people assume — panels shed faster than roofs because the glass is slick and the array runs warmer. Niagara Frontier roofs see roughly 20 to 40 days a season with enough cover to stop production. Cloud cover in November and December costs more than snow does. What snow really drives is the structural spec: design ground snow load here is 40 to 50 psf, and racking has to be stamped for it.

Will solar raise my property taxes in Erie County?

New York's RPTL § 487 gives solar a 15-year exemption from the property-tax increase the system would otherwise cause. Counties, towns, cities, villages, and school districts each opt out separately, so a single address can be exempt from one taxing jurisdiction and not another. Ask your town assessor which of your four taxing bodies have opted out before you let anyone put a property-tax number in a savings projection.

Erie County · Western New York · National Grid

Grand Island solar installation: actual costs and production

What a solar system really costs in Grand Island, what it will actually make on a Niagara Frontier roof, and the part of your National Grid bill it cannot touch. Every number below shows where it came from and when we last checked it.

The short version

A 9.5 kW system in Grand Island

9.5 kW-DC is a representative size for the housing stock and market here — not a recommendation for your roof. Swap your own number into the arithmetic below.

Cash price, before incentives

$26,600–$35,150

$2.8–$3.7 per watt

Observed GridReady quote and bill review sample · verified Apr 2026

Financed price, same system

$33,250–$45,600

$3.5–$4.8 per watt. The gap is the dealer fee, not a cash discount.

Observed GridReady quote and bill review sample · verified Apr 2026

Annual production

10,355–11,685 kWh

Dec–Feb contributes only 1,139–1,285 kWh of that.

Modeled NREL PVWatts v8 · verified Jan 2026

What the bill will not lose

$331 / yr

The National Grid basic service charge of $21 a month survives any amount of solar. Plus the Customer Benefit Contribution at $0.69 per kW-DC per month × 9.5 kW = $7 a month. Together that is about $331 a year you will still pay at a 100% offset.

Show the arithmetic

9.5 kW-DC = 9,500 watts. At the active market cash band of $2.8–$3.7/W that is $26,600–$35,150. At the financed band of $3.5–$4.8/W it is $33,250–$45,600. The gap is the dealer fee.

Show the arithmetic

9.5 kW-DC × 1090–1230 kWh per kW-DC per year (Niagara Frontier specific-yield band) = 10,355–11,685 kWh a year. December through February is 11% of that.

Assumes a south-facing plane near latitude tilt with low shading. A due-east or due-west roof lands roughly 15–20% below the low end. Any real proposal should show a shade model, not just a band.

The 30% federal solar tax credit is gone for direct purchases.

Section 25D — the Residential Clean Energy Credit — terminated for expenditures after December 31, 2025 under Public Law 119-21. If you did not have a system installed and operational by the end of 2025, it is not available to you. Signing a contract or paying a deposit in 2025 was not enough.

Third-party ownership (a lease or a PPA) can still access the 48E business credit through the statutory window, but that credit is claimed by the system owner, not by you. Whether any of it reaches your monthly payment is a question for the contract, not the brochure.

New York's own credit is unaffected: Form IT-255 still gives 25% of qualified solar equipment cost, capped at $5,000 lifetime, with a five-year carryforward.

If a proposal for a Grand Island address still shows a 30% federal credit, ask the salesperson to point you to the IRS guidance that allows it. There is not any. Current program status →

Price

What Grand Island homeowners are actually quoted

A working market. Three quotes here will genuinely be comparable, and the spread between them is real information rather than noise. If one is a dollar per watt above the others, that difference is almost always financing structure, not hardware.

Gross prices before any incentive, active market band. Sources and dates below.
System size	Cash range	Financed range	Likely dealer fee
6 kW-DC	$16,800–$22,200	$21,000–$28,800	$4,200–$6,600
8 kW-DC	$22,400–$29,600	$28,000–$38,400	$5,600–$8,800
10 kW-DC	$28,000–$37,000	$35,000–$48,000	$7,000–$11,000
12 kW-DC	$33,600–$44,400	$42,000–$57,600	$8,400–$13,200

Observed GridReady quote and bill review sample · verified Apr 2026

The gap between cash and financed pricing is not a discount for paying cash.

When a lender offers a 2.99% solar loan, someone pays for the difference between that and the real cost of money. That someone is you, through a dealer fee the installer pays the lender and then adds to your contract price. In New York we typically see $0.60 to $1.20 per watt of dealer fee inside financed proposals — on a 9 kW system that is $5,400 to $10,800 you are financing on top of the actual system. It is legal, it is standard, and it is almost never disclosed as a line item. Ask every installer for their cash price and their financed price on the same system. The difference is the fee.

Upload a proposal and we will find the fee →

The line items that move the price in Grand Island

Electrical scope. Typical existing service here is 100-200A. Mostly 1965-1990 subdivisions. 100A to 150A originals with a fair number of 200A upgrades already done. A panel upgrade is $2,500–$5,000 and it is the single most common change order in this market — get it priced before you sign, not after.
Structural spec. Niagara Frontier design ground snow load is 40–50 psf. Racking has to be engineered and stamped for it, and that is a genuine cost difference against a quote from a lower-snow region.
Roof condition. Nobody should mount an array on a roof with under ten years left. If yours is older, the honest sequence is roof first, then solar — and any installer who waves that away is telling you something about themselves.
Tree work. Wind uplift matters more here than snow load on exposed lakeplain lots. Attachment spacing should reflect that. Shading fixes are rarely in the first quote.
Interconnection and permitting. Permits come from Town of Grand Island Building Department. Permits are issued by your town, city, or village — not the county. Timelines and fees vary block to block across a single county.

Production

What a roof in Grand Island actually makes

Niagara County and the northern Erie County lake plain. Lake Ontario replaces Lake Erie as the moisture source, and because Ontario is deep and rarely freezes, the snow season runs later here than it does south of Buffalo. Flat terrain, good roof orientations, and an unusual concentration of municipal utilities.

Specific yield band

1,090–1,230 kWh / kW-DC / yr

South-facing, near latitude tilt, low shading.

Modeled NREL PVWatts v8 · verified Jan 2026

Winter quarter share

11% of annual

December, January, and February combined.

Derived NREL PVWatts v8 · verified Jan 2026

Mean annual snowfall

70–100 inches

moderate lake-effect exposure from Lake Ontario.

Modeled NOAA/NWS seasonal snowfall records · verified Jan 2026

Days with snow on the array

20–40 per season

Panels shed faster than shingles — glass is slick and the array runs warmer than the roof around it.

Observed GridReady quote and bill review sample · verified Jan 2026

Weather realities specific to this area

Lake Ontario does not freeze in most winters, so lake-effect events here can run into February and March — later than the Erie belt, which usually shuts down by early February.
The terrain is flat and the street grid is largely rectilinear, which means roof azimuths cluster near the cardinal directions. More houses here have a genuinely south-facing plane than in hillier parts of the state.
Wind off the lake and across the Niagara escarpment is a design input for racking, particularly on exposed lots north of the Ridge Road.

What that means for the roof

Wind uplift matters more here than snow load on exposed lakeplain lots. Attachment spacing should reflect that.
The flat grid means fewer partial-shading problems from terrain, but mature street trees in the older villages still matter.

More on the seasonal picture for this whole county: Erie County weather and solar.

The bill

What solar does — and does not do — to a National Grid bill

Full retail net metering applies to the energy component, so each exported kWh offsets an imported kWh at the same all-in price. That is the best export deal available in New York, and it is why upstate solar math works despite the weather.

All-in rate

$0.19–$0.26/kWh

Delivery plus supply plus surcharges. Divide your own bill total by your kWh to see where you sit.

Filed National Grid (Niagara Mohawk) residential rates · verified Apr 2026Range spans the seasonal swing in default supply, which National Grid resets every month.

Basic service charge

$21 / month

Charged at zero kWh. Solar never removes it.

Filed National Grid (Niagara Mohawk) residential rates · verified Apr 2026Basic service charge. You pay it at zero kWh, and solar does not remove it.

Customer Benefit Contribution

$7 / month at 9.5 kW

$0.69 per kW-DC per month on systems interconnected since January 2022. It scales with system size, which is why oversizing costs you twice.

Filed Customer Benefit Contribution (CBC) rates · verified Jan 2026Applies to net-metered systems interconnected on or after January 1, 2022. National Grid's is the lowest CBC of the six investor-owned utilities.

Annual offset value

$1,967–$3,038

From 10,355–11,685 kWh at the all-in rate.

Show the arithmetic

10,355–11,685 kWh × $0.19–$0.26/kWh all-in = $1,967–$3,038 of bill offset a year.

Simple payback, honestly framed

Purchase route	Payback range	What drives the spread
Cash	8.8–17.9 years	Best case is the cheapest install against the highest offset value. Worst case is the reverse.
Financed	10.9–23.2 years	The dealer fee is inside the price, so financed payback is structurally longer before you add a single dollar of interest.

Show the arithmetic

Install cost ÷ annual bill offset. Cash: $26,600 ÷ $3,038 = 8.8 years at best, $35,150 ÷ $1,967 = 17.9 years at worst.

Simple payback, gross of incentives and before any rate escalation, degradation, or maintenance. It is a comparison tool, not a financial projection. The federal residential credit that used to shorten these numbers by roughly 30% terminated for expenditures after December 31, 2025 — so a 2026 payback figure that looks like a 2024 one is wrong.

National Grid catches worth knowing before you sign

The basic service charge survives a 100% offset. A quote showing a $0 bill is wrong by at least $21 a month.
Default supply resets monthly. A proposal built on a January supply rate overstates savings; one built on an April rate understates them.
If an ESCO is your supplier, your all-in rate is not National Grid's — check the supply line on your bill before trusting any savings number.

Full SC-1 rate breakdown →

Local reality

What actually matters in Grand Island

The things a national calculator has no way to know.

An island in the Niagara River between two lakes. Wind exposure is genuinely higher here than on the mainland, and that shows up in the racking spec rather than in the snow load.
Everything comes over a bridge, including your installer's crew and, in a bad storm, the utility's. Restoration priority for an island of 21,000 people is worth thinking about when weighing backup power.

Grand Island by the numbers

The inputs this page is built on

Every figure below carries its source and the date we last checked it. If one of them is wrong for your address, the rest of this page is wrong too — so start here.

Delivery utility

National Grid

The largest upstate footprint: Buffalo and most of Erie County, Niagara County outside the municipals, Syracuse and Central New York, the Mohawk Valley, the Capital Region, and the North Country.

All-in cost of power

$0.19–$0.26/kWh

Plus a $21 monthly basic service charge that solar cannot remove.

Filed National Grid (Niagara Mohawk) residential rates · verified Apr 2026Range spans the seasonal swing in default supply, which National Grid resets every month.

Specific yield

1,090–1,230 kWh / kW-DC / yr

Niagara Frontier climate zone. Dec–Feb is about 11% of the annual total.

Modeled NREL PVWatts v8 · verified Jan 2026

Snow and design load

70–100" / yr · 40–50 psf

Moderate lake-effect exposure (Lake Ontario).

Filed ASCE 7 ground snow load data · verified Jan 2026

Elevation

585 ft

Elevation drives snowfall totals and design load more than latitude does in this part of the state.

Installer market

Active

Enough competition that quotes are genuinely comparable and price spread is meaningful information.

Permitting authority

Town of Grand Island Building Department

Permits are issued by your town, city, or village — not the county. Timelines and fees vary block to block across a single county. The NYS Unified Solar Permit is broadly used in this area.

Housing stock

100-200A typical

Mostly 1965-1990 subdivisions. 100A to 150A originals with a fair number of 200A upgrades already done.

Reported monthly bills

$135–$230

Range that readers on this route have shared with us. Yours depends on usage, rate, and whether an alternative supplier is on your bill.

ZIP codes covered

14072

Coordinates 43.02, -78.96. Landmarks: the Niagara River; Beaver Island State Park; the South Grand Island Bridge.

Incentives

What is actually available in Erie County

Programme	Status	What it means for you
Federal 25D residential credit	Terminated	Ended for expenditures after December 31, 2025. Not available for a 2026 direct purchase.
NY State credit (IT-255)	Active	25% of qualified solar equipment cost, capped at $5,000 lifetime, five-year carryforward.
NY-Sun (NYSERDA)	Block-based	Per-watt incentive that steps down as regional blocks fill. Applied by the installer, not paid to you. Check the current block before accepting an incentive figure.
Property tax exemption (RPTL 487)	Check your town	New York's RPTL § 487 gives solar a 15-year exemption from the property-tax increase the system would otherwise cause. Counties, towns, cities, villages, and school districts each opt out separately, so a single address can be exempt from one taxing jurisdiction and not another. Ask your town assessor which of your four taxing bodies have opted out before you let anyone put a property-tax number in a savings projection.
Sales tax	Exempt	Residential solar equipment and installation are exempt from New York's 4% state sales tax under Tax Law § 1115. The local county portion is exempt only where the county has elected it, and most upstate counties have. Check that your quote is not charging you sales tax it should not be.

Program status changes. We track it on the rebate and deadline watch, with the date of every check.

Questions

Grand Island solar cost FAQ

How much does solar cost in Grand Island, NY?: Cash pricing in Grand Island runs $2.8 to $3.7 per watt before incentives, which puts a 9.5 kW system at roughly $26,600 to $35,150. Financed proposals for the same hardware typically land $0.60 to $1.20 per watt higher because a dealer fee is built into the price.
How much electricity will solar actually produce in Grand Island?: A 9.5 kW system on a good Grand Island roof produces roughly 10,355 to 11,685 kWh a year, based on a specific yield of 1090 to 1230 kWh per kW-DC. December through February contributes only about 11% of the annual total, so a proposal built on summer numbers overstates what you will see.
Will solar eliminate my National Grid bill in Grand Island?: No. The National Grid basic service charge of $21 a month survives any amount of solar. Plus the Customer Benefit Contribution at $0.69 per kW-DC per month × 9.5 kW = $7 a month. Together that is about $331 a year you will still pay at a 100% offset. That is what remains at a 100% offset, before you use a single kWh you did not generate.
Is the 30% federal solar tax credit still available in Grand Island?: Not for a direct purchase. The Section 25D residential credit terminated for expenditures after December 31, 2025. New York's own IT-255 credit is unaffected — 25% of qualified equipment cost, capped at $5,000 lifetime. If a Grand Island proposal still shows a 30% federal credit, ask for the IRS guidance that allows it.
What is the payback period on solar in Grand Island?: Simple payback runs about 8.8 to 17.9 years on a cash purchase and 10.9 to 23.2 years financed, before interest. That is a comparison tool, not a projection — it ignores degradation, rate escalation, and maintenance.
Does snow make solar not worth it in Grand Island?: Snow costs less production than people assume — panels shed faster than roofs because the glass is slick and the array runs warmer. Niagara Frontier roofs see roughly 20 to 40 days a season with enough cover to stop production. Cloud cover in November and December costs more than snow does. What snow really drives is the structural spec: design ground snow load here is 40 to 50 psf, and racking has to be stamped for it.
Will solar raise my property taxes in Erie County?: New York's RPTL § 487 gives solar a 15-year exemption from the property-tax increase the system would otherwise cause. Counties, towns, cities, villages, and school districts each opt out separately, so a single address can be exempt from one taxing jurisdiction and not another. Ask your town assessor which of your four taxing bodies have opted out before you let anyone put a property-tax number in a savings projection.

Next step

Do one of these, not all of them

Free, no email required, and none of them hand your details to a salesperson. Each one is set up to work with the Grand Island numbers above.

Want a human read instead? Send us the proposal and we will tell you what it actually says. We are not installers and we do not sell your details.

Nearby

Places close enough to compare, and why they differ

Neighbouring markets are only worth reading when something actually changes across the line. Where nothing changes, we say nothing.

Keep reading

More on Grand Island

Badge key:Filed — from a tariff, statute, or government datasetModeled — from a published model or datasetDerived — calculated by us from the inputs shownObserved — from proposals and bills readers send us

How this page is built

This is a generated page: the structure is shared across locations, the numbers are not. Every figure comes from the source cited beside it, with the date we last checked it. Nothing here is a quote, an appraisal, or tax advice, and none of it is specific to your roof.

Rates and incentive programs change. We re-verify utility tariffs and NYSERDA program status on a rolling schedule and stamp the date on each number rather than on the page, so you can see which specific figures are fresh. Full methodology · Program status tracker · About the Local Energy Playbook

Page content last reviewed April 2026.

← All of Erie County