Manufacturing & warehouse
Is the available roof capacity aligned with the facility’s annual and daytime consumption?
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Use the free estimator for a preliminary layout, or share your preferred response method with the commercial team. Final feasibility still requires site, utility, and engineering review.
Plan roof, ground-mount, or carport solar from the property's real load, utility tariff, site constraints, and current program rules. In New Hampshire, NuWatt's in-house engineers design and install the project — a direct EPC, not a lead reseller.
Electricity value
Utility-specific
Rate class + interval load
Installed cost
Quote-specific
No statewide $/W inserted
Production
Site-specific
Geometry + shading model
Program facts
Source-dated
Official sources linked
Free address-based tool
Get a preliminary roof layout, panel count, system size, annual production range, and confidence grade before sharing contact details.
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It can be, but the answer must be modeled from the facility rather than a statewide average. Use the serving utility and rate class, 12 months of usage, interval demand where available, a site-specific production model, the EPC quote, and only incentives the project can document. This page separates current official program facts from customer inputs and modeled results.
The New Hampshire decision brief
Establish the utility arrangement and any group-host obligations first.
Determine whether the proposal serves the facility’s own account or uses a group net-metering structure. The contractual and administrative work is different.
New Hampshire’s En 900 rules address host registration with the Department of Energy and delivery of registration information to the distribution utility. Do not skip that step in a group proposal.
Obtain the utility’s applicable terms, agreement, and allocation documents before modeling credits. Do not assume a rebate is open or funded because an older project received it.
The Section 48E begin-construction window closed July 4, 2026: projects that began construction on or before that date may use the longer continuity pathway. Commercial solar projects starting now generally must be placed in service by December 31, 2027. The statutory credit is 6%; it can increase to 30% when the applicable prevailing-wage and registered-apprenticeship requirements are met. Commercial tax credit guide →
IRS Notice 2025-42 · verified 2026-08-06The value comes from the facility's real load, tariff, site, and tax position—not a generic statewide payback.
Generating power on-site turns a variable grid charge into a fixed project cost you can model for the life of the system in New Hampshire.
Model the 6% statutory Section 48E credit, the increase to 30% when PWA rules are met, and 100% first-year bonus depreciation only when your tax team confirms eligibility.
Lower electricity spend flows straight to operating income — a durable line-item reduction, not a one-time rebate.
On-site clean generation supports emissions targets and the sustainability requirements tenants, investors, and municipalities increasingly ask for.
Program decision layer
Official program facts are separated from customer inputs and modeled results so a planning number cannot be mistaken for an approved incentive or a measured outcome.
Start with the serving utility, rate class, 12 months of usage, interval demand where available, and an engineer-reviewed site design. Statewide rate averages and generic payback claims are intentionally absent. State and utility programs are added only after current eligibility is confirmed for this address and system.
Official program fact
Government or utility source, linked and date-verified.
Customer input
Your bill, rate class, interval data, quote, and tax assumptions.
Site model
Roof or land geometry, production, shading, and interconnection review.
Verified outcome
Only measured project results are called outcomes; examples stay labeled as models.
Compare like with like
| Arrangement | Where the value comes from | Records to compare | Mistake to avoid |
|---|---|---|---|
| Individual customer-generator | Use the serving utility’s applicable import/export and net-metering treatment. | Account class, approved facility size, interconnection and current tariff. | Treating every exported unit as a full retail-dollar payment or assuming demand charges disappear. |
| Group host and members | Allocate eligible output or proceeds under the registered group arrangement. | Host/member agreement, same-utility eligibility, allocations, enrollment and reporting obligations. | Counting the entire group’s proceeds as host profit before member allocations and administration costs. |
| Public or nonprofit procurement | Compare ownership and PPA cash flows after resolving who controls the meters and benefits. | Property rights, procurement authority, utility account, tax claimant and member obligations where applicable. | Assuming a group-registration approval is an interconnection approval or a tax-credit award. |
Start with total compensated output, subtract amounts assigned to members and administrative costs, then compare the host’s retained receipts with its own expenses. Member savings need a separate ledger.
Test member turnover, allocation changes and unused credits before comparing a group project with a single-meter installation.
Program references—not an award or tariff determination: New Hampshire · En 900 group net-metering rules
One in-house engineering and install team, from first analysis through commissioning.
We model your building's real usage, roof, and New Hampshire utility tariff, then engineer a system sized to your load and budget.
Our licensed crews handle permitting, interconnection, and installation, then commission and inspect the system so it powers up to spec.
At handoff your team gets production visibility through the manufacturer portal (Enphase or SolarEdge), backed by our workmanship warranty and support line.
Eversource NH
Unitil
Liberty Utilities
New Hampshire Electric Cooperative
Project economics
Bring the installed-cost quote, site-specific production, utility-specific energy value, operating cost, financing terms, and confirmed tax assumptions. This state guide does not insert its own cost or payback model.
Your numbers · one shared calculation engine
Keep the EPC cash price, usable electricity value and dated benefits separate. Nothing below is prefilled with a state rate, invented installation price or assumed tax credit. Results stay on this device; this worksheet does not upload your bill or create an inquiry.
For this state: Start with total compensated output, subtract amounts assigned to members and administrative costs, then compare the host’s retained receipts with its own expenses. Member savings need a separate ledger.
Start with the building
These are planning scenarios, not claims about completed installations. Use the questions to make your site assessment and installer proposals more specific.
Is the available roof capacity aligned with the facility’s annual and daytime consumption?
How does seasonal occupancy change electricity consumption and the value of generation?
Who administers group membership and allocations, and are the participating accounts documented?
The investment decision
Compare proposals on the same scope. Keep cash price, conditional benefits, and annual operating value separate so an attractive headline does not hide a missing cost.
| Decision input | Evidence to request | Check before relying on it |
|---|---|---|
| Installed project cost | An itemized EPC proposal | Roof work, switchgear, interconnection, and exclusions |
| Electricity bill value | Utility tariff + interval load | Self-consumed generation, exports, and remaining demand charges |
| Program compensation | Applicable rules + project award | Eligibility, permitted combinations, term, and payment timing |
| Tax or financing benefit | Project-specific professional review | Ownership, usable benefits, financing fees, and payment schedule |
| Long-term cash flow | A dated, transparent financial model | O&M, replacements, insurance, degradation, and financing |
Screen the site first. Final pricing, program eligibility, and savings still require verification.
Utility, tariff, site, and current program rules verified for the property before economics are modeled.
Utility, tariff, site, and current program rules verified for the property before economics are modeled.
Utility, tariff, site, and current program rules verified for the property before economics are modeled.
A defensible project cost comes from an EPC quote built on the roof or site, structural scope, electrical equipment, labor rules, interconnection work, and schedule. The calculator on this page requires the quoted cost rather than supplying a statewide per-watt average.
Site-specific pricing with exact incentive calculations. No obligation.