Solar Panels in Glastonbury, Connecticut

Eversource is the electric distribution company serving Glastonbury.

Connecticut's Residential Renewable Energy Solutions program is administered by Eversource and United Illuminating within their respective service territories. PURA describes RRES as the program that replaced legacy net metering for new enrollment beginning in 2022.

Under **Buy-All**, all electricity produced by the system is exported to the grid. Generation and household consumption are measured separately, and Eversource compensates the enrolled beneficiary under the applicable PURA-approved tariff. The household continues purchasing the electricity it consumes from Eversource.

Under **Netting**, the home uses solar production first and exports production that is not consumed onsite. Eversource calculates a bill or credit from net usage and production at the end of the billing cycle, and unused credits roll forward under the tariff rules.

For projects applying in 2026, Eversource also publishes a Solar Energy Adjustment applicable to total production under the Netting tariff. Current details appear in Eversource's RRES guidance.

Ask each installer to show:

• Which RRES election the proposal assumes.
• The program year used in the calculation.
• Every current tariff rate, adjustment, and fee included.
• The amount of electricity assumed to be consumed onsite or exported.
• Whether the proposed ownership agreement controls who receives tariff compensation.

Current tariff terms should be checked directly with Eversource and PURA before signing.

Glastonbury's building-permit page expressly lists roof-mounted and ground-mounted solar panels as work requiring a permit. It also lists new electrical circuits and service changes, which matters when a proposal includes panel, meter, disconnect, or service work in addition to the array.

The Town's online submission instructions say all permit applications must be submitted through OpenGov ViewPoint and that hard-copy permit applications or plans are not accepted. Applicants must register in the system, upload the plans, and complete payment through an accepted online method or arrange an in-person check payment.

Glastonbury calculates each class of permit separately. A proposal that includes building work and electrical work should therefore identify both permit scopes and should not assume that one valuation charge represents every municipal approval.

A typical Glastonbury project sequence is:

1. The owner and installer verify roof control and inspect the roof covering, framing, electrical service, meter location, and proposed equipment locations.
2. The installer prepares the array layout, attachment and structural information, electrical diagram, equipment specifications, and labor-and-material valuation for each applicable permit class.
3. The applicant submits the building and electrical records through OpenGov and confirms whether zoning, wetlands, floodplain, or Historic District Commission review is also required for the parcel.
4. The Town reviews the file and returns any correction requests through the permit process. The applicant supplies revised documents without treating a saved or incomplete application as an approved permit.
5. After approval, the installer completes the permitted work and requests the municipal inspections associated with the issued permits.
6. The installer separately completes Eversource interconnection and RRES enrollment before the system is authorized to operate.

Connecticut's 30-day permit decision requirement has a specific statutory scope. Under CGS §16-245nn(a)(1), a residential solar photovoltaic system is a system with a nameplate capacity of 12 kilowatts or less, installed on the roof of a single-family home, and conforming to the Connecticut State Building Code. The 30-day requirement applies only to systems meeting that definition. A system above 12 kilowatts has no 30-day decision deadline under this statute.

Glastonbury's permit fee schedule is effective May 15, 2024 and states that the fees for building, electrical, plumbing, HVAC, and other listed permit classes are calculated separately. For each applicable class, the charge is $34.26 for work valued above $1 and up to $1,000, then $17.26 for each additional $1,000 or fraction. The published amounts include a $0.26-per-$1,000 state fee.

The Town says permit valuation includes labor and materials even when the applicant is not paying directly for one of those items. Homeowners comparing cash, loan, lease, or PPA proposals should ask what valuation the installer will report, which permit classes it will file, and which fees are included in the contract.

The schedule also lists a $100 reinspection fee after a failed inspection, waived if the work passes the first reinspection. The contract should identify who pays a reinspection charge caused by incomplete or nonconforming installer work.

Glastonbury's published 2020 Housing Data Profile reports that 82 percent of occupied homes are single-family and 17 percent are multifamily. It also reports that 77 percent of all homes are owner-occupied, that owners occupy 88 percent of the Town's 11,583 single-family homes, and that renters occupy 71 percent of its 2,431 multifamily homes.

That structure and tenure mix means many Glastonbury properties fit the one-owner, one-roof starting point for a residential proposal, but the fit should be verified at the parcel. A condominium, townhome, rental, or other shared building can require association or owner approval, allocation of roof area, and a clear decision about the electric account and beneficiary connected to the system.

The Town's adopted Affordable Housing Plan describes both townhome and condominium developments and small, older single-family homes as part of the local inventory. Those building types create different solar questions: an older detached home calls for roof and electrical documentation, while an attached or association-controlled property also calls for governing-document and common-element review.

Glastonbury's local historic jurisdiction must be separated from National Register identification. The Town's historic-district map and planning profile identify National Register areas including South Glastonbury, Curtisville, J.B. Williams, and Glastonbury-Rocky Hill Ferry. The same source identifies the Glastonbury Historic District along Main Street as locally designated. A National Register location should not automatically be described as subject to the local Certificate of Appropriateness process.

For a property within the locally regulated Main Street district, the Historic District Commission ordinance requires approval of exterior architectural features open to view from a public road, way, or place before construction. The Town's historic guidance includes solar panels among the technological features considered in district review.

The Commission's scope is based on exterior visibility, design, arrangement, texture, materials, and the relationship to surrounding features. It does not extend to interior arrangements, and ordinary maintenance that does not change exterior design or appearance is excluded. For solar, the useful submission is therefore a complete exterior design showing each array plane, mounting profile, conduit route, meter-related equipment, inverter or disconnect location, and the public views from which those items can be seen.

The Town's Certificate of Appropriateness application directs applicants to submit the completed materials through Community Development and recommends an informal meeting with planning staff before filing. The ordinance calls for a public hearing within 35 days after receipt of a completed application and Commission action within 60 days after filing. Those historic-review periods are distinct from building-permit review and Eversource authorization.

Glastonbury lists a $35 Certificate of Appropriateness fee and a separate $100 public-hearing notice fee on its land-use fee page. The homeowner should confirm that the proposal includes both charges, preparation of the historic submission, attendance or support for the hearing, and any redesign requested by the Commission.

This page describes the Main Street district's requirements. Other properties may fall under different historic designations, so homeowners should use the Town's current mapping and ask Community Development to confirm jurisdiction for the specific address rather than relying on a district name in a real-estate listing or National Register record.

Before comparing Glastonbury proposals, confirm:

• Who owns and controls the roof and whether association or shared-building approval is required.
• The roof covering, installation date, present condition, and estimated remaining service life.
• Roof framing, sheathing, prior additions, and any structural work included in the scope.
• Electrical-service, meter, panel, grounding, disconnect, and conduit work included in the proposal.
• Usable roof area after access, equipment, and setback requirements.
• Current and seasonal tree shade on every proposed array plane.
• Whether the parcel appears in a local or National Register historic area and which designation controls review.
• Whether a Certificate of Appropriateness and public hearing are required for the address.
• Who prepares the exterior renderings and responds if historic review changes the proposed layout.

For a reproducible production reference, a PVWatts V8 model was run near central Glastonbury using:

• 1 kW DC capacity.
• Standard modules.
• Fixed roof mounting.
• 30-degree tilt.
• 180-degree azimuth.
• 14 percent system losses.
• Latitude 41.7123 and longitude −72.6081.
• No additional property-specific shading input.

Those inputs produce approximately 1,299 kWh of first-year AC electricity per 1 kW of DC capacity. The model can be reproduced using the PVWatts V8 documentation.

This Glastonbury result is an orientation-controlled comparison baseline, not a production promise. It does not represent a property's roof planes, tree shade, snow conditions, equipment, or historic-review constraints.

Tree conditions should be modeled by array plane rather than described with a townwide shade assumption. Ask each installer to identify the trees and obstructions included in its shade analysis, the season represented, and whether trimming or removal is assumed. Any tree work should appear separately from the solar scope.

For a Main Street district property, the final production model should use the array placement that appears in the approved exterior design. If historic review moves panels to another roof plane or changes their count, the installer should update the production estimate and contract documents before installation.

Cost Comparison Checklist

Ask each installer to provide an itemized proposal showing:

• Gross cash price and the price-per-watt calculation.
• Loan principal, financing charges, and payment assumptions, if financing is offered.
• Roofing or structural work.
• Electrical service, meter, panel, grounding, disconnect, or conduit work.
• Solar equipment and installation labor.
• Battery equipment and installation, if included.
• Each building, electrical, zoning, certificate, inspection, and utility-interconnection charge.
• The $35 historic application and $100 public-hearing notice fees, when applicable.
• Historic submission preparation and redesign work, when applicable.
• Tree trimming or removal assumed by the production model.
• Monitoring, warranties, and expected maintenance responsibilities.
• The RRES tariff election and utility assumptions used in the proposal.
• Any work or fees excluded from the quoted price.