Solar Panels in Farmington, Connecticut

Eversource is the electric distribution company serving Farmington.

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.

Farmington's Building Division reviews construction documents and inspects building, electrical, plumbing, mechanical, and fire-safety work. A rooftop-solar proposal can involve more than one of those scopes when it includes roof alterations, structural work, new circuits, a service-panel change, energy storage, or exterior equipment.

The Town states that permit applications must be made through its online permitting system. The applicant creates a ViewPoint account, completes the appropriate application, uploads the supporting documents, and follows the review status online. An application is not an issued permit, and work should not begin until the approvals are complete, payment is made, and the permit is available in the account.

Farmington does not use a blanket permit to shift every part of a multi-trade project into one filing. The Town directs each trade contractor to be responsible for the permit connected to that contractor's scope. A homeowner should therefore ask whether the solar company, electrician, roofer, structural contractor, or another party will file each required application and close each inspection.

A practical Farmington sequence is:

1. The owner and installer verify roof control and document the roof covering, framing, electrical service, meter location, proposed array planes, and all equipment locations.
2. The installer separates the building, electrical, roofing, structural, battery, and service-upgrade scopes and identifies the licensed contractor responsible for each one.
3. The applicant creates or uses a ViewPoint account and uploads the plans, equipment information, contractor details, and project valuation requested by the Town.
4. The applicant confirms whether the address requires zoning, wetlands, engineering, fire-safety, Farmington Village historic, or Unionville historic review in addition to the building and electrical permits.
5. After departmental approval, the responsible party pays the amount shown by the Town and downloads the issued permit before work begins.
6. Each trade contractor requests and closes the inspections attached to its permit, while the installer separately completes Eversource interconnection and RRES enrollment before operation.

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.

The statutory decision window does not replace a Historic District Commission process or Eversource authorization. It also does not establish that every submission is complete on the day it is started in ViewPoint. The applicant should keep the application receipt, correction requests, approvals, issued permits, inspection results, historic records when applicable, and utility records together.

Farmington bases permit charges on the submitted project scope and valuation. Because the current amount can depend on the separate trade permits and other approvals attached to the project, the proposal should identify every permit the installer expects, the valuation assigned to each scope, the party responsible for filing, and whether the final portal charges are included in the contract.

If a proposal includes a roof replacement, structural reinforcement, electrical-service change, battery, trenching, detached structure, or work in a regulated historic area, those items should not be hidden inside a general allowance. The contract should name the responsible contractor, submission, inspection, and price treatment for each item.

Farmington's adopted Affordable Housing Plan describes a town with distinct settlement patterns: rural areas with large lots and open space, historic mixed-use villages, and developed commercial corridors. It also identifies Unionville, Farmington Center, the UConn Health Center neighborhood, Route 4, and Route 6 among the areas served by water and sewer infrastructure.

A Town-hosted ACS Housing Summary based on 2010–2014 estimates reports that 61.2 percent of housing units were detached single-family structures, 12.4 percent were attached single units, and the remaining stock included two-family, three- or four-family, and larger buildings. It reports a median construction year of 1979. These figures are visibly dated here because they are a historical baseline, not a current count.

The structure mix means roof control cannot be assumed from a Farmington mailing address. A detached owner-occupied house can present one roof and one electric account, while a townhouse, condominium, rental, duplex, or larger building can involve association documents, shared structural responsibility, multiple meters, common electrical equipment, and a decision about which account and beneficiary the array will serve.

The 1979 median construction year does not establish the age of a present roof. A home from that period may have received several roof coverings, additions, dormers, skylights, service changes, or panel replacements. Each proposal should document the current roof material and installation date, sheathing and framing observations, electrical-service rating, panel capacity, grounding, meter position, prior alterations, and any work excluded from the solar contract.

Farmington's rural and large-lot areas create a different comparison from its village and attached-housing areas. More land does not guarantee usable rooftop area or an unshaded array. Mature trees, roof orientation, long exterior cable runs, detached garages, service location, trenching, and access for installation can all change the design. Those conditions should appear in the plan and itemized scope rather than in a townwide assumption.

The strongest historic-review fact is direct: Farmington Village's published guidance expressly lists **skylights and solar panels** among work requiring Historic District Commission review. The same guidance lists construction or other items not visible from a public right of way as not requiring review. Visibility therefore affects the local review path, and a proposed rear-facing array can present a different historic question from panels, conduit, or equipment visible from the street.

A Farmington Village homeowner should have the installer show every proposed array plane, mounting profile, roof penetration, conduit route, meter-related component, inverter, disconnect, battery, and other exterior equipment. The submission should identify what is visible from public rights of way and should use the same design assumptions as the production estimate and contract.

Unionville has a separate Historic District Commission and Certificate of Appropriateness process. The district was established in 2008, and its property list, map, application, guidelines, and meeting schedule are maintained separately from Farmington Village materials. A property owner should confirm which commission has jurisdiction rather than sending one district's forms to the other.

The Town's Unionville Certificate of Appropriateness process requires an application at least 21 days before a public hearing, usually held with a regular Commission meeting. Town staff publishes the hearing notice and notifies abutting owners. The applicant must also post a sign on the property for the seven days before the hearing and provide the published refundable sign deposit.

At the hearing, the owner can present the proposal and answer Commission questions, and members of the public can speak. The Commission must render its decision within 65 days after filing and sends written notice of approval or denial. The decision begins a 15-day appeal period. These periods should be treated separately from building-permit review, construction scheduling, inspection, and Eversource authorization.

Historic review can change the location, visibility, profile, equipment placement, or panel count in a design. If either Farmington commission requests a change, the installer should update the production model, plans, permit documents, equipment schedule, and price before the owner relies on the revised proposal.

Before comparing Farmington proposals, confirm:

• Who owns and controls the roof and whether an association or another owner must approve the project.
• The roof covering, installation date, condition, and estimated remaining service life.
• Roof framing, sheathing, additions, dormers, skylights, and structural work included in the scope.
• Electrical-service, meter, panel, grounding, disconnect, battery, and conduit work included in the proposal.
• The trees and obstructions represented in the shade analysis for each proposed roof plane.
• Whether the address is within Farmington Village, Unionville, another historic designation, or no regulated historic area.
• Which exterior components are visible from a public right of way.
• Which historic commission and application process apply to the property.
• Who prepares the historic materials, attends the hearing, and updates the design after any requested change.
• Whether every building, electrical, roofing, structural, historic, inspection, and utility task is assigned to a responsible party.

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

• 1 kW DC capacity.
• Standard modules.
• Fixed roof mounting.
• 30-degree tilt.
• 180-degree azimuth.
• 14 percent system losses.
• Latitude 41.7198 and longitude −72.8320.
• No additional property-specific shading input.

Those inputs produce approximately 1,315 kWh of first-year AC electricity per 1 kW of DC capacity. The model can be reproduced using the PVWatts V8 documentation.

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

A rural large-lot property, an attached home, and a visible village roof can use the same weather data but require different usable-roof and shade assumptions. Ask each installer to model the actual array by roof plane and disclose tilt, azimuth, shade, system losses, equipment, and degradation assumptions.

For a Farmington Village or Unionville property, the final model should match the exterior design accepted through the applicable review. If visibility concerns move panels to another roof plane or change exterior equipment, 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, battery, or conduit work.
• Solar equipment and installation labor.
• Each building, electrical, roofing, structural, historic, inspection, and utility-interconnection charge.
• Historic submission preparation, hearing support, and redesign work when applicable.
• Tree trimming, removal, trenching, or long exterior runs assumed by the design.
• Monitoring, warranties, and expected maintenance responsibilities.
• The RRES tariff election and utility assumptions used in the proposal.
• Any work, professional service, application, or fee excluded from the quoted price.