Does solar still pay off in Vermont in 2026?

Vermont is a paradox in 2026: among the highest US residential retail rates (about $0.2146/kWh on Green Mountain Power) — which should make solar pay back fast — but our model puts typical solar-only payback at about 13 years. NuWatt calls VT the "longest payback in New England." Three structural traps explain the gap, and all three trip up most VT solar coverage:

Exports credit at a PUC-blended rate, NOT retail. Base Category I residential rate is about $0.1439/kWh — an absolute number set by the Public Utility Commission, not a fraction of your utility's retail. Most VT-focused sites describe Vermont as "1:1 retail net metering," and that is wrong. The self-vs-export gap on GMP is about $0.04-0.07 per kWh depending on REC choice.
The widely-cited "30% Vermont state solar credit" is a MYTH. It was structured as 25% OF the federal credit. Federal §25D was repealed by OBBBA P.L. 119-21 — so the VT-linked portion is zero. There is no standalone VT state credit.
The 6% sales tax exemption on solar SUNSETS June 30, 2026. As of today, the exemption is still alive — but the calendar window is short. Installs completing after June 30 may face the full 6% unless the legislature extends.

Plus the REC adder choice (Transfer to GMP vs Keep) and the fact that the PUC has cut Category I adjustor rates 7 consecutive years. We walk all of it below.

What changed federally — and what's still on Vermont quotes that shouldn't be

The federal Residential Clean Energy Credit (§25D) — the 30% homeowner credit — was repealed for systems installed after December 31, 2025. For 2026 Vermont buyers, the federal credit on a purchased system is $0. The same applies to home batteries purchased outright. The §48E commercial credit (30%) still exists, but only for leased or third-party-owned systems where construction begins before July 4, 2026 — and the lessor claims it, not you. Full federal context here.

The repeal came through the One Big Beautiful Bill Act (P.L. 119-21), signed in July 2025. Many Vermont-focused solar sites (a1solar, greenenergycalc, ecogenamerica, others) still cite the 30% federal credit as live — outdated. Palmetto LightReach is an example of an active VT §48E leased path. If a 2026 Vermont quote includes "30% federal solar tax credit" on a purchase, ask the contractor to redo the math with $0 federal and verify with IRS.

VERIFIED 2026-06 · IRS §25D repeal under OBBBA P.L. 119-21

Net metering — category-based, blended-rate credit (NOT retail)

This is the part most VT solar coverage gets wrong. Vermont net metering operates under PUC Rule 5.100 with a structure that does NOT match "1:1 retail net metering" anywhere else in the US.

The mechanism:

Self-consumption (own-use): offsets your utility's full retail rate. On Green Mountain Power (default, about 70-75% of VT residential customers) that's about $0.2146/kWh.
Export (net excess generation): credited at an ABSOLUTE $/kWh rate set by the PUC — NOT a percentage of retail. The statewide PUC-calculated blended residential rate is about $0.1839/kWh. With the Category I residential ≤15 kW adjustor, the base effective export rate is about $0.1439/kWh, LOCKED for 10 years from interconnection.
REC adder on top — see the next section.
12-month credit rollover then forfeit on the rollover anniversary. Don't oversize past annual consumption.
System size cap: Category I residential is ≤15 kW; the statewide NEM ceiling is ≤500 kW.

The self-vs-export gap matters more in Vermont than in 1:1 retail states because the gap is real and material: on GMP, about $0.04/kWh (under the Transfer REC default) or about $0.07/kWh (under Keep RECs). Sources that describe VT as "1:1 net metering" are conflating the mechanism with what other states do — VT credits exports against a blended PUC number, not your retail.

The PUC has cut Category I adjustor rates 7 years running. Whatever rate you lock at interconnection is what you keep for 10 years — but the rate available to a NEW install in 2027 will likely be lower than today's. Case 26-0291-INV is the open 2026 biennial; the Department of Public Service (DPS) recommends freezing adjustors at NM 2.6, with broader wholesale-cost reform pending. Lock earlier rather than later — current rates are the most generous you'll see for some time.

VERIFIED 2026-06 · VT PUC Rule 5.100; DPS biennial Case 26-0291-INV

The REC choice — Transfer almost always wins

At net metering enrollment, you pick ONE of two REC adder paths for the 10-year lock:

Transfer RECs to GMP (default modeled): +$0.03/kWh adder. Total export rate about $0.1739/kWh.
Keep RECs: no adder. Export rate stays at about $0.1439/kWh.

The math heavily favors Transfer. Here's why: Vermont does NOT have a tradeable SREC market (unlike PA, MD, or DE). There is no buyer for retained RECs. So keeping RECs means giving up about $0.03/kWh of export revenue for the entire 10-year lock in exchange for certificates that have near-zero secondary value in the current market.

The calculator above offers a Transfer-vs-Keep selector + a mini-compare block so you can see both numbers on the same install. In practice, Transfer wins on dollars on essentially every typical residential system. Keep would only make sense if a VT REC market emerges during your 10-year lock — and there's no concrete sign of that as of mid-2026.

Virtual / group net metering is DEAD for new installs

If you're researching Vermont group or virtual net metering, it doesn't exist for a 2026 install. Act 179 (2024) closed group / virtual NM enrollment for new systems effective January 1, 2025. Only on-site or adjacent-parcel systems qualify under current rules. Existing group / virtual systems are grandfathered; new ones cannot enroll.

Sales tax — EXEMPT today, SUNSETS June 30, 2026

This deserves its own loud section because the calendar is the news.

Vermont currently exempts residential solar equipment (panels, labor, batteries) from the 6% state sales tax, saving roughly $1,300-1,830 on a typical install. The exemption is scheduled to SUNSET on June 30, 2026 (Palmetto).

What this means for buyers in mid-2026:

Installs completing on or before June 30, 2026 — exempt. You don't pay the 6%.
Installs completing after June 30, 2026 — may be subject to the full 6% sales tax. The legislature may extend the exemption before the sunset date, but as of this guide's publish date the sunset is on the books.
Verify the current status with the VT Department of Taxes and your installer before signing. Ask your contractor to confirm in writing whether sales tax applies given your installation completion date.
If you're locking a 2026 install, complete it before July 1 to capture the exemption with certainty.

This is a real $1,300-1,830 swing on a typical install. If the install slips past June 30 and the exemption isn't extended, your final price goes up by the equivalent of about 6% of equipment + labor.

VERIFIED 2026-06 · VT Dept of Taxes; 32 V.S.A. § 3802

Property tax — exempt for systems under 50 kW

Vermont exempts residential solar systems under 50 kW from property tax under 32 V.S.A. § 3802 — automatic, no application required. With VT's effective residential property rate around 1.73% and the typical solar-driven home value uplift of about $15,000-21,000, the exemption saves roughly $372-400/year.

Systems ≥50 kW trigger the Uniform Capacity Tax at $4/kW/year — residential systems rarely reach that threshold (Category I residential is capped at 15 kW anyway), so the exemption is effectively universal for new residential solar. This calculator models the under 50 kW case.

The "30% Vermont state credit" — debunking the myth

You will see "30% VT state solar credit" cited on greenenergycalc, a1solar, ecogenamerica, and several other VT-focused marketing sites. It is a myth in 2026.

Here's where the confusion comes from. The old Vermont solar credit was structured as 25% OF the federal credit. When the federal credit was 30%, the VT-linked portion (25% of 30%) was visible as a meaningful bonus on top. With the federal §25D repealed under OBBBA P.L. 119-21 — federal credit equals $0 for 2026 purchases — the VT-linked portion equals 25% × 0 = $0.

There is no standalone VT state solar income tax credit. Vermont's state-level incentive picture is:

The PUC Rule 5.100 NM blended-rate credit (described above).
The (sunsetting) sales tax exemption.
The property tax exemption.

And nothing else. Any 2026 Vermont solar quote that cites a "30% state credit" is propagating the myth. Ask the contractor for the statute citation; there isn't one.

Battery — GMP runs a meaningful incentive set

Green Mountain Power offers more for residential batteries than most US utilities. Two paths:

GMP BYOD (Bring Your Own Device) — upfront rebate on a 10-year contract:

$850/kW for a 3-hour discharge commitment, or $950/kW for 4-hour, capped at $10,500/battery.
+$100/kW solar-paired adder in beneficial siting areas (not auto-applied; verify your address).
You commit to GMP dispatch participation for 10 years — performance-based, the utility dispatches your battery during peak events.
On a typical 5 kW (10 kWh) battery: $850 × 5 = $4,250 upfront rebate (well under the cap). Modeled default in the calculator.

GMP Powerwall lease — alternative, NOT modeled here:

$55/month for 2 Powerwalls (~27 kWh capacity total).
Waitlist of 1,200+ households as of recent counts — typically several months wait to enroll.
Lease structure, not purchase, so doesn't fit this calculator's upfront-capex model.

Federal storage credit is $0 (§25D repealed for storage purchase too).

Arbitrage gap on GMP is modest — about $0.04/kWh under the Transfer-RECs default (retail $0.2146 vs export $0.1739) or about $0.07/kWh under Keep. Battery is more about resilience (Vermont winter storms, multi-day outages) and the GMP BYOD performance revenue than about ROI from arbitrage.

VEC and BED do NOT have programs comparable to GMP BYOD. If you're not on GMP, the battery economics are weaker.

Burlington (BED) is a different case

If you're in Burlington proper (ZIP 05401), you're on Burlington Electric Department (BED) — the lowest-retail VT utility at about $0.1837/kWh, close to the statewide PUC-blended number.

What that means for solar:

Same PUC Rule 5.100 export math as GMP. Export rate is statewide ($0.1439 base / $0.1739 with Transfer adder) regardless of utility.
But retail is lower, so the self-vs-export gap is smaller: about $0.01/kWh under Transfer on BED vs about $0.04 on GMP.
Self-consumption is less valuable per kWh on BED than on GMP.
BED does NOT have the GMP BYOD program — battery economics on BED are weaker.

For most VT homeowners (outside Burlington proper), GMP is the utility and the calculator's defaults apply.

The honest payback — longest in New England

At default install pricing of $2.88/W (range $2.70-3.10; EnergySage May 2026), our model puts typical Vermont solar-only payback at about 13 years — NuWatt's "longest payback in New England" label. The drivers:

High retail (about $0.2146/kWh on GMP) helps self-consumption.
Blended-rate export credit ($0.1439-0.1739/kWh) is below retail — drag on export revenue.
Federal §25D = $0 (repealed) — no 30% credit offset.
VT state credit = $0 (myth).
PUC has cut adjustor rates 7 years running — locking later means locking lower.
Sales tax sunset risk on installs after June 30, 2026.

Where Vermont fits in our verified set:

Massachusetts (about $0.30/kWh retail + SMART): high single digits.
New Jersey (about $0.26/kWh + SuSI): about 6.5 years.
Connecticut (about $0.29/kWh + Netting minus SEA): about 8-10 years.
Rhode Island (about $0.29/kWh + 80% NM + REF or REG): about 8-10 years.
Delaware (about $0.165/kWh + 1:1 NM + rebate / SREC + no sales tax): about 9-11 years.
Vermont (about $0.2146/kWh + blended-rate export + sunset-risk sales exemption): about 13 years.
Ohio (about $0.16/kWh + energy-only SSO export): about 12-14 years.

VT's retail is comparable to RI / CT / NJ — but the blended-rate export math holds the payback back. High retail doesn't rescue an export rate that's $0.04-0.07/kWh below retail.

VERIFIED 2026-06 · eia.gov

How to read this — Vermont's case for solar

Vermont solar works on self-consumption at the high retail rate, not on export at the blended-derived rate. Sequence the install timing carefully because of the sales tax sunset, and pick the REC path that actually pays.

Lock the install before July 1, 2026 if at all possible — the 6% sales tax exemption is scheduled to sunset June 30, 2026 and the legislature may or may not extend.
Pick Transfer RECs as the default REC path — Keep almost never wins because VT has no tradeable SREC market.
Right-size to annual consumption. 12-month rollover then forfeit — oversized systems lose excess credit at anniversary.
Lock earlier rather than later for the Category I export rate. PUC has cut rates 7 years running; today's rate is the most generous you'll see for some time.
Don't budget for a state income tax credit. The "30% VT credit" is a myth in 2026. Verify any quote that includes one.
Don't budget for a 30% federal credit. Dead for 2026 purchases.
Battery on GMP — BYOD upfront is real; arbitrage is weak; resilience case is real for VT winters.
If you're on BED (Burlington proper), expect somewhat weaker economics — lower retail, same export rate, no BYOD program.
Property tax exemption is automatic under 32 V.S.A. § 3802 for systems under 50 kW. No application needed.
Group / virtual NM is dead for new installs — you need on-site or adjacent-parcel.

If your household is on GMP, runs a normal residential load, you can self-consume most of what you generate, and you can complete installation before June 30, 2026, Vermont solar is a respectable long-payback case in 2026. If you were counting on the federal credit, on a VT state credit, on 1:1 retail net metering, or on a tradeable SREC market — none of those apply.

Run your real Vermont payback (Transfer vs Keep) →

The honest picture

Fact	Vermont (GMP default)	Source
Federal credit	$0 (purchase)	IRS — §25D repealed under OBBBA P.L. 119-21
State income tax credit	None — "30% VT credit" is a myth (was 25% of federal, equals zero now)	(no statute)
Net metering	Category-based, PUC Rule 5.100	VT PUC Rule 5.100
Export mechanism	ABSOLUTE blended-based $/kWh (NOT a fraction of retail)	VT PUC Rule 5.100
Statewide PUC blended rate	About $0.1839/kWh (residential average)	VT PUC biennial
Base Cat I effective export	About $0.1439/kWh, locked 10 years	VT PUC Rule 5.100
Transfer RECs adder	+$0.03/kWh → total export about $0.1739/kWh	VT PUC; GMP NM tariff
Keep RECs alternative	No adder → export stays at about $0.1439/kWh	VT PUC; GMP NM tariff
SREC market	NONE — no tradeable VT SREC market	(no market)
True-up	12-month rollover then forfeit on anniversary	VT PUC Rule 5.100
Residential cap	≤15 kW Category I; ≤500 kW statewide NEM	VT PUC Rule 5.100
Retail rate (GMP default)	About $0.2146/kWh (statewide avg about $0.221; risen from about $0.193 in 2021)	eia.gov; NuWatt; Palmetto
Retail rate (BED)	About $0.1837/kWh (lowest VT)	BED tariff
GMP customer share	About 70-75% of VT residential	(industry estimates)
Sales tax	EXEMPT today — SUNSETS June 30, 2026 (saves about $1,300-1,830 on typical install)	VT Dept of Taxes; Palmetto
Property tax	EXEMPT under 50 kW (auto, saves about $372-400/yr at about 1.73% rate)	32 V.S.A. § 3802
Property tax ≥50 kW	Uniform Capacity Tax $4/kW/yr (residential rarely triggers)	32 V.S.A. § 3802
Virtual / group NM	DEAD for new installs since Jan 1, 2025	Act 179 (2024)
PUC rate trajectory	Adjustors cut 7 years running; Case 26-0291-INV pending	DPS biennial
Battery — GMP BYOD	$850/kW (3-hr) or $950/kW (4-hr), cap $10,500/battery, +$100/kW solar-paired in beneficial areas	GMP BYOD program
Battery — GMP Powerwall lease	$55/mo for 2 Powerwalls (~27 kWh), 1,200+ waitlist	GMP Powerwall lease
Battery federal credit	$0 (§25D repealed for storage)	IRS — §25D repealed
$/W	About $2.88 (range $2.70-3.10)	EnergySage May 2026
Typical solar-only payback	About 13 years ("longest in New England")	This calculator; NuWatt

Before you commit:

Reject any quote that includes a 30% federal credit. Repealed for 2026 purchases.
Reject any quote that includes a "30% Vermont state solar credit." It is a myth (was 25% of federal, equals zero now).
Reject any description of VT as "1:1 retail net metering." Exports credit at an absolute blended-based rate, not at retail.
Lock the install before July 1, 2026 if possible — sales tax exemption sunsets June 30. Saves about $1,300-1,830.
Pick Transfer RECs unless you have a specific reason — Keep almost always loses because VT has no tradeable SREC market.
Don't oversize past annual consumption. 12-month rollover then forfeit.
Lock earlier rather than later for the Cat I export rate. PUC has cut rates 7 years running.
Property tax exemption is automatic under 32 V.S.A. § 3802 for systems under 50 kW — no paperwork.
Group / virtual NM is dead. Only on-site or adjacent-parcel installs qualify for new connections (Act 179, 2024).
Battery on GMP — BYOD upfront $850-950/kW is real; arbitrage is weak; resilience is the real case.
If you're on BED (Burlington), expect weaker economics — lower retail, same export rate, no BYOD program.

Run your real Vermont payback (Transfer vs Keep) →

Estimates only — PUC Rule 5.100 adjustor rates change with each biennial review (next: Case 26-0291-INV), sales tax exemption status may change after the June 30, 2026 sunset depending on legislative action, GMP BYOD program enrollment and dispatch terms vary by individual contract. Verify with the Vermont Public Utility Commission, your utility (Green Mountain Power, Burlington Electric Department, Vermont Electric Cooperative, or your municipal), the Vermont Department of Taxes, and the Department of Public Service (DPS) for current Case 26-0291-INV status. This is not financial advice.