MLP Solar Rebate Program — Wellesley residential solar
Rebates for Wellesley residential electricity customers installing a new solar system at an existing home.
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Wellesley Municipal Light Plant pays $1,200 per eligible kilowatt of direct-current solar capacity. The rebate is limited to 50% of installation labour and materials excluding tax, and $15,000 per residential project. The calculation uses the lower capacity of the qualifying solar panels and inverters; panels outside the required orientation or solar-access limits are excluded. If the system becomes smaller after reservation, the rebate decreases. If it becomes larger, the reserved amount remains unless WMLP directs otherwise; the programme allows an extra application for the difference or a replacement application for the larger system.
Energy New England administers the MLP Solar Rebate Program. This entry covers Wellesley residential customers using its simplified interconnection process for solar without battery storage. Residential projects must not exceed 25 kW DC; the retained single-phase route is also limited to 10 kW AC, the power delivered through the inverter to the electricity network.
Your application also registers the system as Massachusetts Renewable Portfolio Standard Class I eligible. In return for the rebate, you assign the system’s Class I renewable-energy certificates to WMLP for ten years from permission to operate. These certificates are the system’s non-energy attributes; WMLP receives them rather than you retaining them.
Eligibility
- You must own the solar system, be the WMLP residential RS-1 customer of record and electricity end-user, and install it at that account’s service address served by one utility meter. Your account must be in good standing, with six months of satisfactory payments and no past-due balance. Newer customers can provide a letter or bills from their previous electricity utility.
- The home must already exist. New construction, leased systems, power purchase agreements, repairs or partial replacements of existing systems, and systems already authorized to operate are excluded. You must own the building or have its owners’ permission for the installation. Systems already qualified under Solar Carve-out or Solar Carve-out II are ineligible.
- The system must connect to the grid on your side of the utility billing meter. Your installer must confirm that WMLP can approve the equipment and local electricity circuit under its simplified process. This requires single-phase service from a single-phase transformer and an inverter that has passed the IEEE 1547.1 tests and meets UL 1741. WMLP checks the circuit type (a radial feeder) and that its combined generation capacity is below 7.5% of the circuit’s highest annual demand. Although the process overview allows up to 10 kW AC, the policy’s equipment screen specifies less than 10 kW AC.
- Your primary installer must be a professional contractor licensed to conduct business in Massachusetts. You cannot act as your own installer unless you are a Massachusetts licensed electrician installing at your own home; the Master Electrician requirement for electrical work still applies.
- Your installer must provide an accepted shading analysis showing at least 70% annual solar access, meaning no more than 30% shading loss, and a panel-facing direction (azimuth) between 80 and 280 degrees. The report covers each panel plane’s direction, tilt and shading. Electrical work requires a Massachusetts licensed Master Electrician, applicable permits and inspections.
- Use new electrical equipment listed by UL or another nationally recognised testing laboratory and compliant with IEEE standards. Modules must be certified to UL 1703 and inverters to IEEE 1547 and UL 1741 SA; UL listing is recommended rather than required for systems operating below 30 volts. Recertified reconditioned meters are an exception to the new-equipment rule. The installer must purchase and install an AlsoEnergy LocusNOC production meter in addition to the utility meter, unless WMLP notifies you during interconnection approval of an equivalent replacement. The utility meter, disconnect and production meter must be outside and accessible as WMLP specifies.
There is no simplified-process application fee, but you pay utility study and network-modification costs in advance, plus utility metering costs and the required production meter. No insurance is required for a facility eligible for net metering, although WMLP recommends cover for potential liabilities.
You remain responsible for safe operation, maintenance and repair and must give WMLP access to the disconnect. WMLP may disconnect the system for planned or emergency work. The interconnection agreement requires each party to defend and compensate the other for third-party injury or property claims arising from its performance, except where the party seeking protection caused the harm through negligence or deliberate misconduct. Liability between the parties is limited to actual direct damage. On a sale, the agreement continues when the new owner accepts its terms in writing and notifies WMLP.
How to apply
- Status
- Öppet löpande
- Villkor för ansökningsomgången
- Wellesley residential RS-1 customers; subject to utility funds and continuation of the programme.
- Installer obtains Approval to Install and an ENE rebate reservation before installing.
- Select an installer and have them submit the simplified Interconnection Application and Agreement to WMLP’s Alvaro Sosa at asosa@wellesleyma.gov and Chris Chan at cchan@wellesleyma.gov. Include site and roof plans, the electrical one-line diagram and equipment specifications listed in the interconnection instructions.
- After WMLP issues Approval to Install, your installer submits the rebate application through ENE’s portal linked on Wellesley’s solar page. Provide ownership proof, the signed installer contract and shading analysis; review and electronically sign the application and Participant’s Agreement. If the portal is unavailable, the programme uses the received email to solar@ene.org as the submission timestamp.
- Wait for ENE’s Rebate Reservation letter before installation. Installing earlier is at your risk. Complete the project within one year of that letter; otherwise the rebate is automatically rescinded unless you request an extension in writing and WMLP approves it.
- Leave the installed system off while you obtain final building and electrical inspections and WMLP’s witness test. WMLP then issues Authorization to Operate. Submit this with the signed completion form, payment evidence and production-meter documents to ENE. If you financed installation, the executed loan document replaces the paid invoice. You must certify costs at least equal to the rebate incurred after the award date.
- After final approval, WMLP mails the rebate check to your address on record. Its instructions allow six to eight weeks for processing.
Complete and accurate applications are processed, and funds reserved, in order of submission. Funding remains available only while the utility has funds and continues the programme. A reservation secures funds for one year or until complete completion documents are received, whichever happens first.