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Size your solar system to charge your EV for free, get your Level 2 charger for $0 net cost, and take advantage of NH's zero sales tax before the federal credit expires.
$1,000
30C Tax Credit
$300
NHEC Co-op Rebate
~$0
Net Charger Cost
6/30/26
Credit Expires
Installing a solar system and EV charger together saves money three ways.
New Hampshire has zero state sales tax. You save 5-8% compared to neighboring states like Massachusetts (6.25%) and Vermont (6%) on every dollar of solar and EV charger equipment.
Your solar installer runs the 240V circuit for the EV charger while they are already on-site for the panel and inverter installation. One crew, one permit, one disruption instead of two.
Stack Section 30C ($1,000) + NHEC Co-op rebate ($300) + NEM 2.0 (~85% retail credits locked through 2041). The 30C credit expires June 30, 2026 — act now.
Select your EV, enter your annual miles, and choose your utility to see exactly how much extra solar you need and what it will cost in New Hampshire.
Adjust inputs below to see your NH results
24.2 kWh/100mi · 310 mi range
$0.2500/kWh
Total Annual Savings
$726/yr
Solar offset savings · 10.3 yr payback
Annual EV Energy
2,904kWh
Extra Solar Needed
2.5kW
Additional Panels
~6panels
Solar Upgrade Cost
$7,489
You save $954/yr vs gas
$726/yr
Solar EV Offset
10.3 yrs
Payback Period
Based on Eversource ($0.2500/kWh) ·1,175 kWh/kW/yr NH avg · $3.03/W installed · Gas: $3.50/gal at 25 MPG · 30C expires 6/30/26 · No residential ITC (25D expired 12/31/25)
Four steps from daily driving to panel count.
Start with your annual miles (US avg: 12,000) and your EV's efficiency rating (kWh per 100 miles).
12,000 mi/yrMultiply: (miles / 100) x efficiency. A Tesla Model Y at 24.2 kWh/100mi x 12,000 miles = 2,904 kWh/year.
2,904 kWh/yrDivide by NH solar production: 2,904 kWh / 1,175 kWh/kW/yr = 2.5 kW of additional solar capacity.
2.5 kW extraDivide by panel wattage: 2,500W / 420W/panel = 6 additional panels on your roof.
~6 panels
Annual EV energy: (12,000 / 100) x 24.2 = 2,904 kWh
Additional solar: 2,904 / 1,175 = 2.5 kW
Extra panels: 2,500 / 420 = ~6 panels
Solar upgrade cost: 2.5 kW x $3,030/kW = $7,575
Charger net cost: $1,200 - $1,000 (30C) - $300 (NHEC) = $0
Annual savings: 2,904 kWh x $0.25 = $726/yr
Daily miles to kWh to extra panels — worked out for the 10 most popular EVs in New Hampshire at 12,000 miles/year and 1,175 kWh/kW/yr production.
| Vehicle | Efficiency | Annual kWh | Extra kW | Extra Panels | Upgrade Cost | Annual Savings* |
|---|---|---|---|---|---|---|
| Tesla Model 3 LRsedan | 20.9 kWh/100mi | 2,508 | 2.1 kW | ~5 | $6,363 | $627/yr |
| Tesla Model Y LRsuv | 24.2 kWh/100mi | 2,904 | 2.5 kW | ~6 | $7,575 | $726/yr |
| Tesla Model Ssedan | 24.7 kWh/100mi | 2,964 | 2.5 kW | ~6 | $7,575 | $741/yr |
| Hyundai Ioniq 5suv | 25.5 kWh/100mi | 3,060 | 2.6 kW | ~7 | $7,878 | $765/yr |
| Kia EV6suv | 25 kWh/100mi | 3,000 | 2.6 kW | ~7 | $7,878 | $750/yr |
| Chevy Equinox EVsuv | 26.6 kWh/100mi | 3,192 | 2.7 kW | ~7 | $8,181 | $798/yr |
| Ford Mustang Mach-Esuv | 29.2 kWh/100mi | 3,504 | 3 kW | ~8 | $9,090 | $876/yr |
| Chevy Blazer EVsuv | 31.5 kWh/100mi | 3,780 | 3.2 kW | ~8 | $9,696 | $945/yr |
| Tesla Cybertrucktruck | 36.2 kWh/100mi | 4,344 | 3.7 kW | ~9 | $11,211 | $1,086/yr |
| Ford F-150 Lightningtruck | 40.9 kWh/100mi | 4,908 | 4.2 kW | ~10 | $12,726 | $1,227/yr |
*Annual savings at Eversource NH $0.25/kWh. Unitil customers save slightly more ($0.26/kWh), Liberty slightly less ($0.24/kWh), NHEC ($0.22/kWh). All figures at 12,000 mi/yr. Add 20-30% for NH winter range loss buffer.
New Hampshire winters (December through March) reduce EV range by 20-30% due to battery chemistry and cabin heating. If you commute heavily in winter, size your solar 20-30% larger than the table shows. Example: a Model Y driver doing 15,000 winter-heavy miles should plan for 3.1-3.3 kW extra solar (8 panels) rather than the base 2.5 kW (6 panels).
Your EV is just one load. Here is how to size the entire system to cover your home electricity AND your driving.
Average NH home uses 7,200 kWh/year (600 kWh/month). Homes with electric heat or heat pumps use 9,000-12,000 kWh. Check your last 12 months of utility bills for your actual number.
Typical NH home:
7,200 kWh/yr
= 6.1 kW solar needed
Your EV adds 2,500-4,900 kWh/year depending on the vehicle and your driving. Use the table above for your specific EV. Most NH commuters add 2,500-3,500 kWh.
Typical EV (Model Y, 12k mi):
2,904 kWh/yr
= 2.5 kW solar needed
Add home + EV loads, divide by NH solar production (1,175 kWh/kW/yr), and round up. Add a 10% buffer for system losses (inverter, wiring, soiling).
Home + Model Y total:
8.6 kW → 9.5 kW
= ~23 panels (420W each)
Eversource $0.25/kWh. Gas at $3.50/gal, 25 MPG. NEM 2.0 ~85% credit. No 25D ITC (expired). Property tax exempt in Nashua (RSA 72:62 adopted). NHEC members subtract $300 from charger cost.
Two-EV households are increasingly common in NH. Simply add both vehicles' kWh loads to your home load. A household with a Model 3 (2,508 kWh) and an Ioniq 5 (3,060 kWh) at 12,000 miles each needs 5,568 kWh of extra solar — about 4.7 kW or 12 panels more. Total system: 7,200 + 5,568 = 12,768 kWh → 10.9 kW → 12.0 kW with buffer (29 panels).
Texas gets more sun, but New Hampshire's higher electricity rates and stable net metering close the gap. Here is the honest comparison.
| Factor | New Hampshire | Texas (avg) | Winner |
|---|---|---|---|
| Solar production | 1,175 kWh/kW/yr | 1,500 kWh/kW/yr | TX |
| Avg electricity rate | $0.25/kWh | $0.15/kWh | NH |
| Annual $ per kW solar* | $294/kW/yr | $225/kW/yr | NH |
| Net metering | ~85% retail, locked to 2041 | None (ERCOT wholesale) | NH |
| Avg cost per watt | $3.03/W | $2.80/W | TX |
| State sales tax on solar | 0% | 0% (exempt) | Tie |
| 30C EV charger credit | $1,000 (expires 6/30/26) | $1,000 (expires 6/30/26) | Tie |
| Winter EV range loss | -20-30% | -5% (mild winters) | TX |
| EV charging payback (Model Y) | ~10.4 yrs | ~12.4 yrs | NH |
*Annual $ per kW = production x rate x NEM factor. NH: 1,175 x $0.25 x 1.0 = $294. TX: 1,500 x $0.15 x 1.0 = $225. NH's higher rates compensate for fewer sun hours. Model Y payback assumes EV-only solar add-on at state avg cost/W, 12,000 mi/yr.
Each kWh your solar produces in NH displaces $0.25 of electricity. In Texas, that same kWh only displaces $0.15 — and without net metering, TX homeowners often export at wholesale rates ($0.03-0.05/kWh). NH's NEM 2.0 at ~85% retail ($0.21/kWh credit) is far more valuable than any TX export rate. Result: despite 28% less sun, NH solar delivers better dollar-for-dollar returns per kW installed.
Texas produces 28% more solar energy per kW, has lower installation costs ($2.80/W vs $3.03/W), and mild winters mean virtually no EV range penalty. For a pure self-consumption strategy (charge your EV during the day when solar is producing), TX's extra sun hours mean more direct charging. But most people charge overnight — making net metering credits essential, which is where NH wins.
Every dollar you can claim in 2026. No residential solar ITC (25D expired). No state solar rebate (repealed by SB 303).
| Incentive | Amount | Type | Status | Notes |
|---|---|---|---|---|
| Section 30C (EV Charger) | Up to $1,000 | Federal tax credit | Active | Expires June 30, 2026. 30% of cost, max $1,000 residential. |
| NHEC Co-op EV Charger Rebate | $300 | Utility rebate | Active | NHEC members only (~12% of NH customers). Not available to Eversource, Unitil, or Liberty customers. |
| NEM 2.0 Net Metering | ~85% retail | Bill credit | Active | 100% supply + 100% transmission + 25% distribution. Locked through 2041. Not 1:1 retail. |
| Property Tax Exemption (RSA 72:62) | Varies by town | Tax exemption | Active | Local option — adopted in ~66% of NH towns. Solar does not increase property tax assessment. |
| No State Sales Tax | 0% (save 5-8%) | Tax advantage | Active | NH has no state sales tax. Saves 5-8% vs MA (6.25%), VT (6%), ME (5.5%) on equipment. |
| CPCNH Community Power | Competitive rates | Supply option | Active | 40%+ of NH customers. Competitive supply rates. Net metering credits still apply. |
| NH State Solar Rebate | $0 | Repealed | Dead | Repealed by SB 303 (2024). No state rebate for solar panels. |
| Section 25D (Residential Solar ITC) | $0 | Expired | Dead | Expired December 31, 2025. No federal credit for homeowner-owned solar. |
| Section 25C (Energy Efficiency) | $0 | Expired | Dead | Expired December 31, 2025. No federal credit for heat pumps, insulation, etc. |
The One Big Beautiful Bill Act (OBBBA), signed July 4, 2025, set the final expiration for the Section 30C EV charger tax credit at June 30, 2026. There is no extension provision. Here is what qualifies — and what does not.
Timeline tip: Solar + EV charger installations in New Hampshire typically take 6-10 weeks from contract to completion (permitting, utility interconnection, inspection). To meet the June 30, 2026 deadline, sign a contract by mid-April 2026 at the latest.
Level 2 is the standard for home charging. Here is what to know.
Many older NH homes have 100A or 150A panels. Adding solar + EV charger may require a 200A panel upgrade ($1,500-$3,000). Your installer should assess panel capacity during the site visit.
New Hampshire winters reduce EV range by 20-30%. Size your solar slightly larger to account for seasonal variation. Battery preconditioning (warming the battery before driving) also uses extra energy during cold months.
Mount the charger as close to your electrical panel as possible to minimize wiring costs. Garage installs are simplest. Outdoor installations need NEMA 4 rated enclosures for New England weather.
Your utility determines your charging cost and net metering credit value.
Southern & Central NH (~71%)
Best for: Largest territory — most NH customers are here
Seacoast region (~11%)
Best for: Highest rate means highest solar savings per kWh
Salem, Jaffrey, Keene area (~6%)
Best for: Lowest rate of the IOUs — stable, predictable costs
Rural NH, Lakes Region (~12%)
Best for: Only utility with EV charger rebate — Co-op members benefit most
NH's NEM 2.0 credits at approximately 85% of retail (not 1:1). Your solar panels generate during the day and earn credits. Your EV charges overnight using those credits. Since the credit is less than full retail, maximize self-consumption: charge your EV during the afternoon when solar production is highest if your schedule allows. Otherwise, the credits still offset most of your overnight charging costs.
NH has unique advantages for EV owners going solar.
New Hampshire has zero state sales tax on everything, including solar panels, EV chargers, and electric vehicles. You save 5-8% compared to MA (6.25%), VT (6%), and ME (5.5%) on every purchase. On a $25,000 solar system, that is $1,250-$2,000 in savings.
New Hampshire NEM 2.0 net metering credits (~85% of retail) are locked in through 2041 for existing systems. Even if NH reforms net metering in the future, your credits are protected for 15+ years. This provides long-term certainty for your solar + EV investment.
Over 40% of NH customers now participate in Community Power Coalition of NH (CPCNH), which offers competitive electricity supply rates. Net metering credits still apply under CPCNH. Some CPCNH plans offer 100% renewable energy at competitive prices.
About 66% of NH towns have adopted RSA 72:62, which exempts solar panel value from property tax assessment. Your home value increases from the solar installation, but your property taxes do not. Check with your town for adoption status.
NH imports nearly all its fossil fuels. Solar + EV eliminates dependence on volatile gasoline and electricity markets. With battery backup, you can maintain energy independence during winter storms and grid outages common in rural NH.
Thousands of NH residents commute to Massachusetts daily. At 12,000+ miles/year of commuting, switching from gas ($1,680/yr at $3.50/gal) to solar-charged EV ($0/yr fuel cost) saves over $1,600 annually on fuel alone.
Everything homeowners ask about bundling solar with an EV charger in NH.
Most EVs need 2,400-4,900 extra kWh per year (12,000 miles). In New Hampshire with 1,175 kWh/kW/yr production, that translates to 2-4.2 kW of additional solar, or roughly 5-10 extra 420W panels. Efficient sedans like the Tesla Model 3 need fewer panels; trucks like the F-150 Lightning need more.
Yes. Bundling saves on installation costs (one crew, one permit, one inspection), and right now you can stack Section 30C ($1,000 tax credit) + NHEC Co-op rebate ($300 for co-op members) to get your Level 2 charger for essentially $0. Plus, New Hampshire has no state sales tax on either purchase, saving you 5-8% compared to neighboring states.
Section 30C is a federal tax credit for alternative fuel vehicle refueling property, including home EV chargers. It covers 30% of equipment and installation costs, up to $1,000 for residential. It applies to chargers placed in service by June 30, 2026.
The Section 30C credit expires June 30, 2026. The One Big Beautiful Bill Act (OBBBA), signed July 4, 2025, accelerated the expiration date. There is no extension mechanism — once it expires, it is gone.
No. The NH state solar rebate was repealed by SB 303 in 2024. There is no state-level rebate for solar panels. However, New Hampshire has no sales tax (saving 5-8% vs neighboring states), NEM 2.0 net metering locked through 2041, and RSA 72:62 property tax exemption in roughly 66% of towns.
New Hampshire uses NEM 2.0, which credits at approximately 85% of retail (100% supply + 100% transmission + 25% distribution). Your solar panels generate credits during the day, and you use those credits when charging your EV overnight. Credits roll over monthly and annually. NEM 2.0 is locked through 2041.
No. The NHEC $300 EV charger rebate is exclusively for New Hampshire Electric Cooperative members, who make up about 12% of NH electricity customers. Eversource, Unitil, and Liberty customers do not have a comparable utility EV charger rebate at this time.
Level 2 (240V, 32-48 amp) is recommended for home charging. It adds 25-37 miles of range per hour, fully charging most EVs overnight. Level 1 (120V) only adds 3-5 miles per hour, which is impractical for daily commuters unless you drive under 30 miles/day.
Only if you have a battery backup system (like Tesla Powerwall) with a solar+battery hybrid inverter that can island from the grid. Standard grid-tied solar systems shut down during outages for safety. With a battery, you can charge your EV from stored solar energy.
Community Power Coalition of NH (CPCNH) serves over 40% of NH customers with competitive supply rates. Your net metering credits still apply under CPCNH. In some cases, CPCNH rates may be lower than default utility supply, which changes the economics of when to charge your EV vs. export solar to the grid.
Add your annual home electricity usage (average NH home: 7,200 kWh/yr) to your EV energy need (e.g., Model Y at 12,000 miles = 2,904 kWh/yr). Divide the total (10,104 kWh) by NH solar production (1,175 kWh/kW/yr) to get 8.6 kW. Add a 10% buffer for system losses: ~9.5 kW total, or about 23 panels at 420W each.
Yes. NH gets 28% less sun than Texas (1,175 vs 1,500 kWh/kW/yr), but NH electricity costs 67% more ($0.25 vs $0.15/kWh). Each kW of solar in NH saves about $294/year versus $225 in Texas. Plus, NH has NEM 2.0 net metering (~85% retail, locked through 2041) while Texas has no residential net metering. The EV solar payback in NH is actually shorter than in Texas.
Add both vehicles' kWh loads to your home load. For example, a Model 3 (2,508 kWh/yr) and an Ioniq 5 (3,060 kWh/yr) at 12,000 miles each need 5,568 kWh of extra solar — about 4.7 kW or 12 additional panels. Total system with home load: 12,768 kWh → ~12.0 kW system (29 panels).
Lock in the Section 30C credit before June 30, 2026. Our NH-licensed installers handle solar panels, EV charger, and all permitting in one project.
Free, no-obligation quote. Licensed NH electricians. Typical installation: 6-10 weeks.
Complete pricing by city and system size
How solar pencils out without 25D ITC
NEM 2.0 ~85% retail credits explained
RSA 72:62, no sales tax, and more
Eversource vs Liberty vs Unitil rates
Compare financing options in NH
Whole home electrification in NH
Where NH rates are heading in 2026
CPCNH and community power options
National EV charger guide