Residential heat-pump rebate
Electricity customers of Concord Municipal Light Plant (CMLP) can receive $2,000 per ton, up to $15,000 per home per year, for a partial-home ground-source heat pump with well drilling in Concord, Massachusetts.
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The rebate supports a new partial-home installation with well drilling, supplementing or replacing electric heating in an existing single-family home. Heat pumps can reduce household carbon emissions.
The payment is $2,000 per ton of cooling capacity, calculated by dividing the AHRI-certified cooling capacity in BTUs by 12,000. The partial-home ground-source route with drilling is capped at $15,000 per home per year, and the rebate cannot exceed the project cost.
The customer also has a $15,000 ground-source rebate cap per electric service address per calendar year for equipment installed that year. A combination of air-source and ground-source rebates shares a $15,000 cap. For this purpose, the installation date is the later electrical or applicable sheet-metal inspection approval. If the property is sold, the new account holder receives a fresh annual cap regardless of payments to previous account holders. You cannot combine this rebate with a National Grid/Mass Save rebate for the same equipment.
Rebates of $750 or less are paid as an electricity-bill credit; any unused credit carries forward against Concord municipal electricity, water/sewer and broadband bills. For larger rebates, customers in good standing can choose a bill credit or a cheque paid to themselves or their installer. Frequent payment arrears during the previous two years may result in some or all of a requested cheque being issued as bill credit. A cheque normally arrives six to eight weeks after approval.
Eligibility
- You must be a CMLP electricity customer installing at your served home in Concord, Massachusetts. This route is for an existing single-family home whose primary heating system was electric resistance heating, existing heat pumps or electric thermal storage (ETS), which stores electrically generated heat for later use. Install a new ground-source system with well drilling to replace or supplement that heating. Single-family homes with informal apartments, multiple homes on one parcel and installations in outbuildings follow separate multi-unit rules. A home whose primary heating fuel is or was natural gas does not qualify for CMLP's rebate.
- The new system must meet less than 90% of the home's total heating load at an outdoor temperature of 8°F, using the ASHRAE 2021 design conditions. Its remaining heating needs must be met by electric resistance, existing heat pumps or ETS for this route. These electric backup systems do not require integrated controls linking the heat pump with another heating system.
- The ground-source equipment must appear on both the ENERGY STAR and AHRI-certified lists. Install the condenser and one or more indoor air-handler units together, or the coil if an existing furnace blower is used. Water pumps must be installed at the same time. Replacing only a condenser or only an air handler is ineligible, even if that component is certified. A geothermal well shared with a heat pump serving a different building is ineligible.
- If your home was built before 2008, you need a home energy assessment completed within the previous three years or scheduled within six months after project completion. A completed Energy Saver Home Loan Program decarbonization plan can substitute. For a renovation that exposes some or all wall studs while the structure remains intact, a final Home Energy Rating System (HERS) report substitutes when building code requires that rating; otherwise a home energy assessment remains required.
- The electrician must obtain a Town electrical permit before work starts and arrange the inspection after completion. Duct work beyond minor repairs also needs a sheet-metal permit and inspection approval. The installer must obtain a Concord Board of Health drilling permit before drilling. The project must pass all relevant inspections before you submit the application, and payment depends on CMLP checking the inspection approvals and drilling permit.
- Your installer provides equipment details and confirms applicable installation practices in the form. For ground-source systems these cover safe refrigerant recovery when decommissioning equipment, testing refrigerant lines with dry nitrogen and evacuating them with a vacuum pump as instructed by the manufacturer, protecting and air-sealing wall penetrations, and sloping condensate drains downhill away from crawlspaces, walkways and outdoor equipment. New ducts must be sealed and insulated to at least R-8. Applicable breakers must be labelled; thermostats must be on interior walls away from sunlight, appliances and drafts, and the installer must show you how to use the controls. CMLP may follow up on deficiencies and inspect the installation.
How to apply
- Status
- Öppet löpande
- Villkor för ansökningsomgången
- Submit after all required inspections pass and within 90 days of the later electrical or applicable sheet-metal inspection approval.[^c13][^c18]
- Resolve outstanding requirements within 30 days of CMLP communication.[^c13]
You or your installer can apply through CMLP's residential heat-pump rebate form after the work passes the required inspections. CMLP must receive it within 90 days of the later electrical or applicable sheet-metal inspection approval; a late application is ineligible. For help completing the form, contact Jan Aceti at jaceti@concordma.gov or 978-318-3151.
Before installation, you may ask for optional ground-source project pre-approval through the link on the programme page. Both you and your contractor receive confirmation. If the equipment changes afterwards, CMLP cannot guarantee rebate eligibility.
Enter inspection approval dates, the drilling-permit issue date, equipment model numbers and AHRI identifiers. Provide the final invoice with the installation address, installer company, installed equipment models and project cost. If the invoice lacks model numbers, add clear photos of equipment model plates. For a pre-2008 home, provide the assessment or final HERS report date, or upload the completed loan-programme decarbonization plan. If payment goes directly to the installer, upload its W-9 tax form.
If CMLP contacts you and your installer about an incomplete application or unmet requirements, resolve the outstanding issues within 30 days of that communication or the project loses eligibility. The Town may inspect equipment for up to one year after receiving the application.