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Market Requirements Overview-Connecticut

This article provides a clear, state-by-state breakdown of all requirements and links involved in the solar installation process, covering every requirement from M0 to M1 through M2 for Connecticut. It outlines the documentation, approvals, and compliance steps that installers and sales teams must follow to ensure each project meets state-specific regulations. Designed as a practical guide, it helps teams quickly understand what’s required in each state to keep projects compliant and moving efficiently.

Connecticut-Active Utilities

State

Utility

Minimum Production factor for sales.

Connecticut

  • Eversource Energy

  • United Illuminating

500

Connecticut Utility Guide

Connecticut - Energy Storage Solutions

Connecticut's Energy Storage Solutions (ESS) program is one of the strongest battery storage incentive programs in the Northeast — and one of the better selling tools available to you in this market. The program pays homeowners real money to let their battery share stored energy with the grid during peak demand. For your customers, it turns a backup power purchase into something that earns income. For your sales process, it gives you a concrete dollar figure to put in front of a homeowner.

Connecticut-Completing NTP (M0) Requirements

Section B: Contract

Connecticut requires any individual who negotiates a home improvement contract to be registered and to personally countersign the contract, including TPO solar agreements.

  • LightReach will list the Home Improvement Salesperson (HIS) license and Certified Installer credentials on page two of each Connecticut agreement.

  • A Docusign email will be sent to the Home Improvement Salesperson as soon as the customer signs, and the Home Improvement Salesperson must complete the countersignature promptly.

External Palmetto Connecticut Link

Connecticut-Design Package | Inputs and Deliverables

System Loss Settings

State

Snow Loss (Only use if design platform does not have a total value)

Minimum System Loss without Shade Loss (Includes Snow Loss)

CT.

4%

12.3%

Connecticut Milestone Requirements

Connecticut-Incentive Deliverables - M1 Milestone

Connecticut Prerequisite

Connecticut RRES (Eversource & UI only)

  • Background: The Connecticut RRES program is the current "incentive" program in the state. In essence, it's an "incentive" of having net metering. Paperwork for this program is generally considered among the more complex in the country. There are both paperwork pre-requisites, as well as general system pre-requisites.

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  • Paperwork Pre-requisite 1 of 3: Palmetto requires all systems to be sold, applied for and installed under the RRES Netting option. No other options will be accepted.

  • Paperwork Pre-requisite 2 of 3: Payment Beneficiary on the RRES Application to be the customer of record (terminology note: RRES application is synonymous w/ Interconnection Application). This is required because while there is no monetary incentive for the majority of homeowners, the program may qualify some Low-Moderate-Income (LMI) homeowners with a small discount. LightReach is not involved in any way with this LMI discount; if the customer happens to receive it, great. Selecting the customer of record as the payment beneficiary also allows the Vendor ID field on interconnection documents to be skipped/bypassed when filling out interconnection paperwork.

  • Paperwork Pre-requisite 3 of 3: All applications issued from January 1, 2025 require the system owner to show Palmetto Solar, LLC. Note: If the system owner shows anything other than Palmetto Solar, LLC & the Date of Statement of Qualification is January 1, 2025 or later - milestone will be rejected.

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  • System Pre-requisite 1 of 3: Inverter nameplate cannot exceed 25 kW AC

  • System Pre-requisite 2 of 3: Expected annual production cannot exceed 105% of the customer's highest annual consumption over the past 5 years. Systems intended to be built in excess must indicate the customer's intention to purchase up to 2 electric vehicles or a whole home heat pump.

  • System Pre-requisite 3 of 3: If applicable; Homes constructed prior to Jan 1, 1980, must complete a Home Energy Assessment or a qualifying DOE HE Score or WAP Assessment. This is completed as part of interconnection approvals.

M1 Documents: Submission Requirements

Installers must ensure that (1) All required documents are present and (2) System details, where applicable, match installation & other installation documents (for example, system size on incentive docs must match system size on planset).

Document 1

Document 2

Utility Bill

  • Best practice to provide full copy when possible.

  • At minimum: Must show account number and address.

Statement of Qualification (SoQ) document provided by the utility

All CT Storage Projects:

  1. CT ESS Confirmation Form

  2. Complete IC Application PDF - must include Customer & Storage info sections

Opt-in (Passive & Active) Customers ONLY

  1. CT ESS Customer Disclosure Form - (Customer sig required)

  2. Reservation of Funds (ROF) email from the Program

    -Example - Reservation of Funds

    CT Energy Storage Solutions (ESS)

Connecticut-Incentive Deliverables - M2 Milestone

State

Document 1

Document 2

Connecticut

Connecticut-M2

PTO Letter
​CT - PTO

Storage Customers

Opt-in (Passive & Active) Customers ONLY

  1. Confirmation of Funds (COF) email from the Program OR complete PDF download of application portal showing customer info and the project status “Pending Payment".

    -Example - Portal Screenshot

    -Example - Confirmation of Funds

CT Energy Storage Solutions (ESS)

Connecticut-Compliance: Guidelines

Details

Some electric utilities offer specialized rate discounts to certain customer groups, such as low income or medical assistance/disability discounts. These programs can vary widely in scope and details. Common utility subsidized rate programs include:

Connecticut's bill discount programs

Attachment icon
Connecicut ESS Customer Disclosure_April 1, 2026_LightReach v1_ English.pdf
Attachment icon
Connecticut ESS EPC Confirmation_effective April 1, 2026_LightReach v1_ English (FINAL).pdf
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