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Issue · Sunapee, NH

Solar Ordinance and Site-Plan Review Amendments

New screening, noise, and decommissioning rules affect commercial solar developers and town aesthetics.

Overview

A solar ordinance enacted in March 2026 triggered the need for revised site plan review regulations. The Planning Board began addressing those updates in April by scheduling a workshop and continued the process in June through consultation on a municipal solar project that tested the emerging standards on noise, buffers, and decommissioning.

Background

The solar ordinance passed in March 2026 created new standards for solar installations that required corresponding updates to the town's site plan review regulations.

At its April 2 meeting the Planning Board therefore placed on its agenda a proposal to schedule a dedicated workshop for drafting those regulatory amendments.

The board's action directly followed from the March ordinance and was framed as necessary to give developers and staff clear procedures for noise, buffering, and decommissioning requirements.

By the June 11 meeting a concrete municipal solar project at the wastewater treatment plant had advanced to the consultation stage, prompting the board to test the still-evolving standards on erosion control, inverter noise, glare, property-line buffers, and decommissioning plans.

That non-binding discussion illustrated how the March ordinance and the pending regulatory updates would be applied in practice, with board members requesting detailed engineering information before any formal submission.

No formal vote on the regulatory amendments occurred at either meeting; the board instead moved the process forward through workshop planning and project-specific feedback.

At its April 16 meeting the Planning Board reviewed proposed amendments to the solar ordinance itself, debating 50-foot vegetative buffers, a 40-decibel noise limit at the property line for commercial inverters, and surety-bond requirements for decommissioning. Members discussed making system and property owners jointly responsible and explored mitigation options such as enclosures or parking-lot installations.

At its May 14 public hearing the Planning Board considered the first set of site-plan regulation amendments required by the March solar ordinance, focusing on visual screening for commercial rooftop installations. After debate on fairness to other commercial equipment and the risk of over-regulation, the board approved the solar-specific changes by a 6-1 vote rather than postponing for wider buffering revisions.

How it unfolded
Board placed on its agenda a proposal to hold a workshop meeting to review updated site plan review regulations necessitated by the solar ordinance passed in March.
2026-04-02Planning Board
Board reviewed proposed solar ordinance amendments on residential vs. commercial applicability, stormwater management, 50ft vegetative buffers, 40-decibel inverter noise limits, and decommissioning surety bonds; discussed joint owner responsibility and mitigation feasibility.
2026-04-16Planning Board
Board held public hearing on proposed site plan review regulation amendments for commercial solar systems; debated rooftop visual screening requirements such as parapets and fairness compared to other commercial infrastructure; reached consensus to vote on solar amendments as presented; approved by 6-1 vote.
2026-05-14Planning Board
Commission discussed size validation and logistics for solar array to power the wastewater treatment plant.
2026-06-03Conservation Commission
Board held non-binding consultation on Wastewater Treatment Plant solar array, raising questions on erosion control, inverter noise, glare, decommissioning plans, and buffering requirements; applicant encouraged to submit formal site plan with civil engineering details.
2026-06-11Planning Board
Arguments in favor
Surety bonds or joint owner responsibility needed to prevent town inheriting removal costs if companies fail or systems are abandoned.
planning-board 2026-04-16
For
40-decibel limit is technologically feasible with sheds or enclosures.
planning-board 2026-04-16
For
Parapets are a relatively inexpensive and easy way to provide screening for rooftop solar.
planning-board 2026-05-14
For
Arguments against
Requiring bonds for small residential systems imposes undue individual burden.
planning-board 2026-04-16
Against
New rooftop screening rules for solar may be applied unfairly compared to other commercial rooftop infrastructure such as HVAC units and could discourage developers.
planning-board 2026-05-14
Against
Key voices
“The speaker questioned the source of the proposed regulations and asked if rooftop screening requirements for solar panels would also be applied to other commercial rooftop infrastructure, like HVAC systems.”
Residentplanning-board 2026-05-14
“The speaker suggested that the board might be 'picking on solar' when many other unsightly commercial developments lack screening or buffers.”
Residentplanning-board 2026-05-14
What's next

The board will revisit broader site plan review regulations on buffering and screening at a future meeting after required public noticing periods.

solardecommissioningnoisesite plan