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Investor-owned utilityEversource Energy (New Hampshire) interconnection application
Eversource Energy (New Hampshire) is an investor-owned utility serving 464,024 residential customers in New Hampshire (EIA-861, 2025). Applications: PowerClerk (Eversource NH PowerClerk). Gridpol files Eversource Energy (New Hampshire) interconnection applications for licensed installers – solar, storage and EV chargers – with single-line diagram and site plan, unlimited for $500 a month.
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Process verified from Eversource Energy (New Hampshire)’s official sources (see below). NH DOE adopted new interconnection rules En 1000 (RUL 2024-007, listed as adopted 7/17/26) replacing Puc 900 for DER <5 MW; text not accessible (energy.nh.gov 403) - verify current tiers/timelines.
Eversource Energy (New Hampshire) at a glance
Public Service Co of NH (Eversource Energy)
TypeInvestor-owned utility
EIA utility ID15472
Residential customers464,024 (EIA-861, 2025)
Net-metered residential customers18,774 (EIA-861, 2025)
Service territory10 counties in New Hampshire
How to applyPowerClerk – Eversource NH PowerClerk · official link
Who submitsApplicant with eversource.com user ID (CT/MA DG contractor logins work in NH PowerClerk); installer typically submits.
Export compensationNet billing – NH Net Metering (post-2017 tariff)
Monetary credits: small = default energy service + transmission + 25% distribution; large = energy service only
Net metering page: approval typically under a week; enrollment notice ~10 days after meter. NH DOE adopted new interconnection rules En 1000 (RUL 2024-007, listed as adopted 7/17/26) replacing Puc 900 for DER <5 MW; text not accessible (energy.nh.gov 403) - verify current tiers/timelines.
Documents Eversource Energy (New Hampshire) asks for
- Interconnection application formSimplified application in PowerClerk with supporting information Gridpol prepares this.
- UL 1741 / IEEE 1547 certificationUL 1741 SA grid support inverter; ISO-NE source requirement settings
- Single-line diagram (one-line) (when applicable)Required for Standard; Simplified uploads per application Gridpol prepares this.
- Final inspection sign-offCertificate of Completion signed by town electrical inspector (or NH-licensed electrician if no inspector)
How the Eversource Energy (New Hampshire) process runs
- Submit Application to Connect in PowerClerk (net metering eligibility checked automatically).
- Eversource reviews for safe parallel operation; engineering review if needed.
- Install system.
- Deliver Certificate of Completion signed by town electrical inspector (or NH-licensed electrician where no inspector).
- Eversource installs net meter; enrollment notice within ~10 days. Do not operate until all steps complete.
Fees
| Fee | Applies to | Note |
|---|---|---|
| $200 | Simplified up to 25 kW | Net metering page says no application fee - conflicting |
| $500 | Simplified 25-100 kW | |
| $1,000 | >100 kW | |
| $500 | Standard pre-application | non-refundable |
Utility fees are paid by the installer or customer; they are not part of the Gridpol plan.
Size levels and limits
| Level | Up to | Note |
|---|---|---|
| Simplified | 100 kW | Inverter-based, Puc 900 / Guidelines for inverters up to 100 kVA |
| Standard | Non-inverter and >100 kW | |
| Net metering cap | 1000 kW |
Net metering small <=100 kW, large 100-1,000 kW
Storage, EV and stamps
Battery storage
Not addressed on Eversource NH pages.
Sources
- Eversource NH - Application to Connect: https://www.eversource.com/residential/about/doing-business-with-us/interconnections/new-hampshire/new-hampshire-application-to-connect (retrieved 2026-11-13)
- Eversource NH - Net Metering: https://www.eversource.com/residential/about/doing-business-with-us/interconnections/new-hampshire/new-hampshire-net-metering (retrieved 2026-11-13)
$500 / month
Unlimited interconnection applications. 12-month agreement, signed online. The agreement starts the day you sign; first invoice right away, then monthly.
- Unlimited interconnection applications
- Single-line diagram and site plan for every application
- Pre-submission check against the utility’s requirements
- Homeowner e-signature link for the authorization
- Filing in your utility portal accounts or by the utility’s method
- Utility questions, corrections and resubmissions
- Follow-up through approval, inspection and PTO
- Customer list, exports, API and webhooks
Applications are typically submitted within 2 business days after complete documents. Utility review times are set by each utility.