North Dakota is one of the structurally weakest US solar markets in 2026. Our model puts typical solar-only payback in the 20-25 year range (ecogenamerica) on a typical residential install — comparable to Louisiana, among the worst in our verified set. This is an "honest calculator" state: every ND solar marketing page tells you the math is fine, and the math is in fact not fine.
The reasons stack:
- Net billing at AVOIDED COST under N.D. Admin. Code 69-09-07. Exports credit at about $0.03/kWh on Xcel Energy ND (default, range $0.02-0.05 across IOUs) — NOT retail.
- Low retail (about $0.12/kWh statewide) — among the lowest US residential rates. Every offset kWh is worth less.
- No federal credit. §25D was repealed by OBBBA P.L. 119-21 effective for 2026 purchases. SmartEnergyUSA still cites the 30% credit as live — outdated.
- No state income tax credit. SmartEnergyUSA also claims an "ND state solar income tax credit" — that claim is not supported by any primary source.
- High install pricing — about 28% above the national average ($2.90-3.68/W, ecogenamerica weighted $3.29).
- No SREC, no RPS, no statewide battery rebate.
Plus two flags most ND solar coverage understates:
- Utility dependence is critical. Co-ops and municipals are exempt from 69-09-07 — some pay NOTHING for excess generation. VERIFY YOUR CO-OP IN WRITING before signing.
- Property tax exemption EXPIRES after 5 years — not permanent like FL / DE / NJ. After year 5 the added home value becomes property-taxable.
The one tailwind: rates are rising fast (Xcel ND rate case Feb 2026 +12.92%, statewide +13.8% YoY). Long-term self-consumption value improves as retail climbs. But that's not enough to rescue the payback math for a 2026 buyer.
What changed federally — and what's still on North Dakota 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The federal Residential Clean Energy Credit (§25D) — the 30% homeowner credit — was repealed for systems installed after December 31, 2025.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 North Dakota 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. Few lease providers are active in the ND market. Full federal context here.
The repeal came through the One Big Beautiful Bill Act (P.L. 119-21), signed in July 2025. SmartEnergyUSA still cites the 30% federal credit as live on its North Dakota solar page — outdated. ND solartech and ecogenamerica confirm the repeal. If a 2026 North Dakota 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. 119-21Net billing at avoided cost — exports are NOT retail
This is the central mechanical fact about ND solar in 2026.
N.D. Admin. Code 69-09-07 requires investor-owned utilities (Xcel Energy ND, Otter Tail Power, MDU) to PURCHASE qualifying facility (QF) output — but ONLY at AVOIDED COST for excess generation. Not retail.
What that means in practice:
- Self-consumption offsets full retail (about $0.12/kWh) by not drawing from the grid. There's no "credit" mechanism — it's an absence of consumption.
- Exported solar is credited at avoided cost, about $0.03/kWh on Xcel ND (range $0.02-0.05 across the IOUs; updated by utility filing).
- That's roughly 25% of retail — a structural haircut, not 1:1.
- Xcel uses a Solar Bank: NEG (Net Excess Generation) credit rolls month-to-month, with annual true-up at avoided cost OR a one-time election to carry forward indefinitely.
- Residential cap on Xcel: 120% of annual load, ≤100 kW. Don't oversize — the avoided-cost rate punishes export.
The structural consequence: self-consumption is dramatically more valuable than export. Every exported kWh earns about $0.03; every self-consumed kWh offsets about $0.12 — a 4x swing. Same economics as Louisiana.
Utility dependence is critical — co-ops are the wildcard
This is the single biggest variable risk factor in ND solar, and most ND solar coverage understates it.
IOUs (follow 69-09-07 avoided-cost rule):
- Xcel Energy ND — default modeled. Serves the Red River Valley (eastern ND), Fargo / Grand Forks. About 89,000 customers — a small share of ND. Avoided cost about $0.03, Solar Bank mechanism described above.
- Otter Tail Power — QF net billing for residential under 100 kW, same avoided-cost rule.
- Montana-Dakota Utilities (MDU) — serves Bismarck / Mandan and western ND. Avoided cost about $0.03.
Co-ops and municipals — EXEMPT from 69-09-07:
- Rural electric cooperatives (Cass County Electric Cooperative and others) and municipal utilities can set their OWN net metering / net billing policies. They are NOT bound by the 69-09-07 avoided-cost rule.
- Some ND co-ops pay NOTHING for excess generation — your exports are donated to the grid with no compensation.
- Some bundle a higher residential rate — Cass County Electric Coop bundles about $0.1242/kWh, materially better than the IOU avoided-cost case.
- Outcomes vary widely. There is no statewide rule for co-ops; each sets its own.
VERIFY YOUR CO-OP'S POLICY IN WRITING BEFORE SIGNING. Ask for the specific NEG / net billing tariff document. If your co-op pays nothing for excess, your sizing strategy must be 100% self-consumption — any over-production is wasted. If your co-op bundles a higher rate, your payback improves materially. This is the single biggest variable in ND solar economics — bigger than the federal credit, bigger than the property exemption, bigger than $/W pricing.
VERIFIED 2026-06 · N.D. Admin. Code 69-09-07Retail — lowest US, but rising fast
ND residential retail is about $0.12/kWh statewide average (ecogenamerica reports $0.1164) — among the LOWEST US rates. Low retail makes every kWh of self-consumption less valuable, structurally lengthening solar payback.
The one tailwind: rates are rising fast.
- Xcel ND rate case Feb 2026: approved +12.92% residential rate increase.
- Statewide +13.8% YoY.
- Long-term self-consumption value improves as retail climbs — but that's a 25-year story, not a payback-rescue for a 2026 install.
Cass County Electric Coop bundled rate runs higher (about $0.1242). MDU and Otter Tail track close to Xcel.
Sales tax — likely NOT exempt (sources don't substantiate)
ND sales tax is 5%. SmartEnergyUSA mentions "sales tax exemptions" but reliable primary sources (ND solartech listing of solar incentives, ND Office of State Tax Commissioner publications) do NOT include a sales-tax exemption — only the property tax exemption and the solar easement law.
Conservative treatment in this calculator: assume 5% applies — about $700-1,300 of added cost on a typical install. If SmartEnergyUSA's claim turns out to be correct (it isn't supported by any primary source we could find), the savings would be welcome. But ask any installer who claims an exemption for the statute citation before accepting their quote — there isn't one we could locate.
Verify directly with the ND Office of State Tax Commissioner before signing.
Property tax — EXEMPT 5 YEARS only (NOT permanent)
This is a meaningful structural exemption — but with a critical limit most ND solar coverage doesn't emphasize.
The ND Office of State Tax Commissioner administers a "Solar, Wind or Geothermal Device Property Tax Exemption" that exempts the added home value from qualifying renewable devices from local property tax for 5 years after installation.
- Where it applies: 100% of the added home value from solar is exempt for years 1-5.
- After year 5: the added home value becomes property-taxable on your annual assessment.
- Different from FL, DE, NJ which exempt solar's added value indefinitely (permanent exemptions).
- The exemption helps cash flow for the first 5 years — but doesn't shield the long-term property tax impact.
Plan accordingly: model 5 years of property exemption, then a step-up. The calculator's default assumption is that the exemption helps but isn't permanent.
VERIFIED 2026-06 · ND Office of State Tax Commissioner; ND Century Code Title 47State income tax credit — the SmartEnergyUSA myth
This deserves a clear debunk.
ND has NO state solar income tax credit.
SmartEnergyUSA's North Dakota solar page claims an "ND state income tax credit for solar" — that claim is not supported by any primary source. ND solartech (the authoritative state guide to renewable energy incentives) lists only:
- The 5-year property tax exemption (above).
- The solar easement law (below).
That's it. No income credit. No upfront rebate. No SREC market. If a contractor includes an "ND state credit" line in your quote, ask for the statute citation; there isn't one.
Solar easement — legal, not financial
ND Century Code Title 47 provides legal protection of access to sunlight. If you record a solar easement on your property, your right to sun cannot be obstructed by future neighboring construction (subject to specific easement filing rules).
This is a property-rights protection, NOT a financial incentive. Doesn't reduce your install cost. Doesn't add to your payback math. Useful for siting / planning and for protecting your investment over the 25-year horizon — but don't include it in dollar calculations.
SREC / RPS — does NOT exist
ND has NO Renewable Portfolio Standard (only a voluntary objective) and NO SREC market. There is no SREC revenue stream available to ND residential solar owners.
Don't budget for SREC income — there isn't any. Any ND solar quote that includes "SREC revenue" is fictional; ask for the program citation, there isn't one.
This puts ND in the same SREC-less bucket as Indiana — and away from PA (about $45/SREC), MD (about $60), DE (about $30 tier-1), or NJ ($200-280 legacy).
Battery — resilience purchase, not ROI
Arbitrage gap on a percentage basis is HIGH in ND: retail $0.12 vs avoided cost $0.03 = gap $0.09/kWh — comparable to Louisiana's avoided-cost case, larger than Ohio's split-rate. "Store don't export" is a real lever.
But because ND's retail is low, the absolute dollar arbitrage value per kWh is small. The $12,000 capex on a default 10 kWh battery doesn't pay back on arbitrage alone — the math actually goes negative over the 25-year horizon when you include the battery's cost.
- No statewide battery rebate (no Eversource ConnectedSolutions equivalent — NH has one, ND doesn't).
- Federal storage credit $0 (§25D repealed for storage purchase).
The resilience case is real. ND has extreme weather:
- Winter snowstorms and ice events.
- Summer wind and tornado risk.
- Multi-day outages happen.
The dollar payback math says battery doesn't pay; the resilience math is a personal-tolerance question. If you want backup for ND winters and storm events, install for backup, not ROI. The numbers don't carry on arbitrage alone.
The honest payback — among the worst
At default install pricing of $3.29/W weighted (range $2.90-3.68; ecogenamerica — about 28% above national average), our model puts typical North Dakota solar-only payback in the 20-25 year range (ecogenamerica, no rate escalation assumed) on a typical residential install.
Where North Dakota 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.
- New Hampshire (about $0.25/kWh + 85% NEM 2.0 locked-2041 + no sales tax): about 9.5 years.
- Indiana (about $0.16/kWh + EDG instantaneous): about 9-13.7 years.
- Ohio (about $0.16/kWh + energy-only SSO export): about 12-14 years.
- Vermont (about $0.2146/kWh + blended-rate export): about 13 years.
- Louisiana (about $0.12/kWh + avoided-cost export): about 21-23 years.
- North Dakota (about $0.12/kWh + avoided-cost export + about 28% higher install pricing): about 20-25 years.
ND is structurally a worse-or-tied case to Louisiana — lower retail PLUS substantially higher install pricing, partially offset by ND's 5-year property exemption (LA's property exemption is permanent but only saves about $90/yr due to LA's low effective rate). The rising rate trajectory (+13.8% YoY) is ND's one tailwind that LA doesn't have.
VERIFIED 2026-06 · eia.govHow to read this — North Dakota's case for solar
ND solar in 2026 is NOT a ROI purchase. The case for solar here is self-consumption + resilience + environmental motivation, not dollar payback.
- Don't shop ND solar for the dollar math. Payback is 20-25 years on a typical install. If you're optimizing for ROI, wait for retail to keep climbing (rates are rising fast) or pass.
- VERIFY YOUR UTILITY before anything else. Co-ops can pay NOTHING for excess generation. Ask for the specific net billing tariff document in writing before signing. If your co-op pays zero, your sizing strategy must be 100% self-consumption — any over-production is wasted.
- Right-size to your load. Don't oversize for export — avoided cost at $0.03 is near-zero return. Match annual production to consumption (under the Xcel 120% cap; under your co-op's rules if you're on a co-op).
- Load-shift toward daylight. Dishwasher, laundry, EV charging during solar production hours. Every kWh shifted from grid-purchased (about $0.12) to self-consumed avoids retail — every exported kWh earns only about $0.03.
- Reject any quote citing the federal 30% credit on a 2026 purchase. Dead.
- Reject any quote citing an "ND state solar income tax credit." It doesn't exist. SmartEnergyUSA's claim is unsupported.
- Don't budget for sales tax exemption. Likely 5% applies. Confirm the 5% IS in your installer's quote.
- Property tax exemption helps 5 years only. Model 5 years of exemption, then property-taxable. Not the indefinite exemption FL or DE buyers get.
- Don't budget for SREC revenue. ND has no RPS, no SREC market.
- Battery for resilience, not ROI. ND extreme weather (winter snowstorms, summer wind) is the real case for backup. The dollar math says no.
- The rising rate trajectory is real. +13.8% YoY statewide is the one tailwind — long-term self-consumption value improves. But that's a 25-year story, not a 5-year payback story.
If your household runs a normal residential load, you can self-consume most of what you generate, and you've verified your utility's net billing policy in writing (especially co-op), North Dakota solar makes sense as a long-horizon self-consumption + resilience purchase — not as a dollar-payback investment. If you were counting on the federal credit, on a state credit, on full retail net metering, on an SREC market, or on a permanent property tax exemption — none of those apply.
Run your real North Dakota payback →The honest picture
| Fact | North Dakota (Xcel ND default) | Source |
|---|---|---|
| Federal credit | $0 (purchase) | IRS — §25D repealed under OBBBA P.L. 119-21 |
| State income tax credit | NONE — SmartEnergyUSA claim of one is unsupported by primary sources | (no statute) |
| Net metering / billing | Net billing at AVOIDED COST | N.D. Admin. Code 69-09-07 |
| Export rate — Xcel ND | About $0.03/kWh (range $0.02-0.05 across IOUs) | N.D. Admin. Code 69-09-07; Xcel ND tariff |
| Export rate — Otter Tail / MDU | About $0.03/kWh (same avoided-cost rule) | N.D. Admin. Code 69-09-07 |
| Export rate — co-ops / municipals | EXEMPT from 69-09-07; varies — some pay NOTHING, Cass County bundles about $0.1242/kWh | Co-op tariffs (verify each) |
| Self-consumed | Full retail offset (about $0.12/kWh) | (mechanical) |
| Xcel mechanism | Solar Bank — NEG monthly roll, annual true-up at avoided cost OR one-time carry-forward election | Xcel ND tariff |
| Residential cap (Xcel) | 120% of annual load, ≤100 kW | Xcel ND tariff |
| Retail rate | About $0.12/kWh (statewide $0.1164; among LOWEST US; +13.8% YoY) | eia.gov; ecogenamerica |
| Xcel ND rate case Feb 2026 | +12.92% residential approved | ND PSC Feb 2026 rate case |
| Cass County Electric Coop bundled rate | About $0.1242/kWh | Cass County Coop tariff |
| Sales tax | DISPUTED — likely NOT exempt (no primary source confirms exemption; 5% likely applies, about $700-1,300 added cost) | ND Office of State Tax Commissioner |
| Property tax | EXEMPT 5 YEARS only — NOT permanent (added value taxable after year 5) | ND Office of State Tax Commissioner |
| Solar easement | ND Century Code Title 47 — legal protection of sunlight access (not financial) | ND Century Code Title 47 |
| SREC market | NONE (ND has no RPS — only voluntary objective) | ND energy law |
| Battery state rebate | $0 (no statewide program) | (no program) |
| Battery federal credit | $0 (§25D repealed for storage) | IRS — §25D repealed |
| Battery arbitrage gap | About $0.09/kWh percentage-wise (retail $0.12 vs avoided $0.03) — but absolute dollar value small | (mechanical) |
| $/W | About $3.29 weighted (range $2.90-3.68; about 28% above national average) | ecogenamerica |
| Typical solar-only payback | About 20-25 years — among WORST US payback periods | ecogenamerica; this calculator |
Before you commit:
- Reject any quote that includes a 30% federal credit. Repealed for 2026 purchases.
- Reject any quote that includes an "ND state solar income tax credit." It doesn't exist. SmartEnergyUSA's claim is unsupported by primary sources.
- Reject any quote that includes SREC revenue. ND has no SREC market.
- VERIFY YOUR UTILITY'S NET BILLING POLICY IN WRITING before signing. Co-ops can pay NOTHING for excess; Cass County bundles a higher rate. This is the single biggest variable in ND solar.
- Don't accept "1:1 net metering" as a description of ND IOU mechanics. Exports credit at avoided cost (about $0.03), not retail.
- Confirm sales tax IS in your installed quote. ND likely does NOT exempt solar from the 5% sales tax — about $700-1,300 of real added cost.
- Property tax exemption is 5 years only. Don't model it as permanent. After year 5, the added home value is property-taxable.
- Don't oversize past 120% of annual load (Xcel) or past your co-op's cap. Avoided cost at $0.03 punishes export.
- Load-shift toward daylight to maximize self-consumption — every kWh shifted from grid to self avoids about $0.12 retail vs earning $0.03 on export (4x swing).
- Battery is a resilience purchase, not an ROI purchase. Extreme winter / summer weather is the real case.
- The rising rate trajectory helps long-term, but doesn't rescue 2026 payback. Plan a 20-25 year horizon.
Estimates only — IOU avoided-cost rates change annually with each utility's filing, co-op net billing policies vary widely and are not subject to N.D. Admin. Code 69-09-07, property tax exemption applies for 5 years only after install. Verify with the North Dakota Public Service Commission, your utility (Xcel Energy ND, Otter Tail Power, MDU, or your specific co-op / municipal), the ND Office of State Tax Commissioner for property and sales tax confirmation, and ND solartech for current incentive listings. This is not financial advice.