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We serve MA, NH, CT, RI, ME, VT, NJ, PA, and TX
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7 criteria that matter in 2026, specific red flags for New Hampshire, and the questions to ask before you sign. No federal credit means every dollar of your installation cost is real money — choose carefully.
These criteria are ranked by importance for New Hampshire homeowners in 2026. Use them as a checklist when evaluating solar quotes.
NH net metering is NOT 1:1. Credits equal 100% supply + 100% transmission + 25% distribution (~85% retail). An installer who claims 1:1 will over-estimate your savings by 15%.
Can explain the credit formula and adjusts savings estimates for ~85% NEM rate.
Claims 1:1 net metering or does not know what NEM 2.0 is.
The federal 25D ITC expired December 31, 2025. The NH state rebate was repealed by SB 303 in 2024. Any estimate showing these incentives is wrong and will mislead you on net cost.
Quote shows $0 for federal ITC and $0 for state rebate. Pricing starts at actual cost.
Quote includes 30% federal credit or $1,000 state rebate. Immediate disqualification.
Without the ITC cushion, every dollar matters. You need to see exactly what you are paying per watt and what is included. NH solar should cost $2.85-$3.25/W for a standard installation.
Published $/W pricing with line-item breakdown. All-in price, no surprise adders.
Refuses to give $/W pricing. Uses "monthly payment" framing to hide total cost.
North American Board of Certified Energy Practitioners (NABCEP) is the gold standard for solar installer certification. It requires ongoing education and demonstrates technical competence.
Has NABCEP-certified installers on staff. Can name the lead technician for your project.
No NABCEP certification. Uses 100% subcontracted labor with no quality oversight.
Without the ITC, your system is a bigger upfront investment. Strong warranty coverage protects that investment. Look for separate panel, inverter, and workmanship warranties.
25-year panel warranty + 25-year Enphase warranty + 10+ year workmanship. Written, not verbal.
Short workmanship warranty (2-5 years). No written warranty document. "We will take care of it" without specifics.
About 66% of NH towns have adopted the solar property tax exemption. A good NH installer should know whether YOUR town has adopted it and help you file the exemption after installation.
Knows your town RSA 72:62 status. Provides the exemption form and filing guidance.
Has never heard of RSA 72:62. Does not know if your town has adopted the solar property tax exemption.
A company that has installed in your town before knows the permitting process, utility interconnection timeline, and local inspectors. National companies often lack this ground-level knowledge.
100+ NH installations. 4.5+ star reviews. Can reference local projects. NH-licensed.
No NH-specific reviews. Cannot name a single local installation. Not licensed in NH.
These are not hypothetical. We see NH homeowners receive quotes with these problems regularly.
The 25D residential ITC expired December 31, 2025. $0 for homeowner purchases. Any installer still quoting 30% is either dishonest or has not updated their software since 2025.
SB 303 repealed the state rebate in 2024. It does not exist. If it appears on your quote, the installer is using outdated systems.
NH uses NEM 2.0 (~85% of retail rate). An installer who claims 1:1 will overstate your savings by approximately 15%. This makes their payback projections artificially short.
If an installer only talks in monthly payments or total system cost without $/W breakdown, they may be hiding high pricing. Always ask for $/W installed.
Any installer who says "this price is only available today" or "we can only hold this price for 24 hours" is using pressure tactics. Real pricing does not expire overnight.
Panel and inverter warranties come from manufacturers. The installer workmanship warranty is separate. If they cannot produce a written warranty document, do not sign.
Solar installers must be licensed electricians or work under one in NH. Ask for their NH electrical license number. Out-of-state companies sometimes install without proper NH licensing.
When comparing quotes from 3+ NH installers, use this checklist to ensure you are comparing apples to apples:
NuWatt, ReVision Energy, Granite State Solar
Verdict: Best for most NH homeowners who want NH expertise and competitive pricing.
Companies serving multiple NE states
Verdict: Good option if they have a dedicated NH team with NEM 2.0 expertise.
Sunrun, ADT Solar, etc.
Verdict: Proceed with caution. Verify NH licensing and program knowledge.
NABCEP-certified. A+ BBB rated. 350+ NH installations. Published $/W pricing. $0 for expired credits. NEM 2.0 expertise. RSA 72:62 filing assistance.