If Eversource is your electric utility, there are a few steps and a few program specifics worth understanding before you sign a solar contract. This page covers how Eversource handles net metering and interconnection, how SMART and ConnectedSolutions fit in, and what to ask your installer. It is general information, not an estimate of your bill or savings; those depend on your usage, system size and the proposal in front of you.
Net metering with Eversource
Net metering credits you for electricity your system sends back to the grid, measured as the difference between what Eversource delivers to you and what your system generates, per Eversource’s own net metering page. For most residential systems, this works out to a credit close to the full retail rate for the electricity you export, consistent with the statewide net metering requirement the Department of Public Utilities sets for Massachusetts investor-owned utilities. See Massachusetts net metering: how solar credits affect your bill for a fuller explanation, and the Massachusetts solar incentives page for the state-level regulatory picture, including the currently open DPU review that touches on net metering credit value.
Interconnection: what the application process looks like
To go solar with Eversource, your project generally needs two separate applications: an electrical interconnection application, for which simplified and expedited procedures apply to most residential-sized systems, and a separate net metering application that includes a Schedule Z technical form. Your installer typically prepares and submits both on your behalf, but Eversource reviews and approves them, so your timeline depends in part on Eversource’s own queue, not just your installer’s schedule. Eversource publishes a Solar Application Checklist and governs the process under its Massachusetts Interconnection Tariff and Net Metering Tariff. Ask your installer which forms they are filing for you and for a realistic, written timeline rather than a general estimate.
SMART and ConnectedSolutions for Eversource customers
Eversource is one of the three investor-owned utilities eligible for the state’s SMART production incentive; see the Massachusetts solar incentives page for current rates and how SMART applications work. If you add a battery, Eversource is also one of the three sponsors of Mass Save’s ConnectedSolutions program, a separate, opt-in, performance-based payment for letting the utility draw stored battery power during a limited number of summer peak events. See solar batteries in Massachusetts: backup power and ConnectedSolutions for how that program works and how to enroll.
What to ask your installer
- Which interconnection procedure applies to my system size, simplified or expedited, and what is Eversource’s current typical review time?
- Will you complete and submit the Schedule Z net metering application on my behalf, and can I see a copy?
- If I add a battery, will you walk me through ConnectedSolutions enrollment separately, since it is not automatic?
- Can you show me Eversource’s current published net metering and interconnection tariffs rather than a verbal summary?
When this last changed
Eversource’s interconnection and net metering tariffs are governed by filings with the Department of Public Utilities and can be updated. The DPU’s broader delivery-charge and bill-redesign review (D.P.U. 25-200), discussed on the Massachusetts solar incentives page, remains open as of this writing. Confirm current terms directly with Eversource or your installer before signing a contract.
Common questions
How long does Eversource interconnection typically take?
Eversource does not publish a single guaranteed timeline; it varies by system size, application type and local grid conditions. Ask your installer for a written estimate specific to your project.
Do I need to apply separately for net metering and interconnection?
Yes. Eversource treats these as two applications, interconnection and net metering (including a Schedule Z form), even though your installer typically files both for you.
Does SolarSiteIQ work with Eversource directly?
No. SolarSiteIQ is an independent service that connects homeowners with a local installer. We do not administer Eversource’s programs or guarantee any credit, rebate, or approval timeline.
What if I am not sure which utility I have?
Check a recent electric bill. If you are not served by Eversource, see our National Grid page or confirm your provider’s own terms if it is a municipal light plant.
How do I get started?
Request a free, no-obligation assessment and SolarSiteIQ will connect you with one qualified local installer who can confirm current Eversource terms for your property. Start at /solar-step-1/.
Ready to see what applies to your home? Start your free assessment and SolarSiteIQ will connect you with one qualified local installer, no obligation.
