Residential Rebates and Incentives

How to Enroll

Customers can enroll through their qualified battery system or inverter manufacturer. The battery system partners that are currently approved for participation in the Cape Light Compact’s ConnectedSolutions program are listed below. Follow the links below to enroll through your battery system/inverter manufacturer’s website:

Program Materials

Rules and Information for CLC ConnectedSolutions Residential Battery Program

How It Works

By enrolling your qualified battery energy storage system in Cape Light Compact’s ConnectedSolutions program, you can earn incentives for allowing the Compact to tap into your battery’s stored energy at times of high electricity demand. During these peak demand events, Cape Light Compact will send a signal to your battery’s inverter to discharge the battery, reducing the strain on the grid.

Earning Incentives

You can earn incentives based on your battery system’s average kilowatt (kW) discharge over the course of all of the season’s peak demand events, at the rates shown below. Your battery system performance, and therefore your per-season incentive amount, will vary based on the size and configuration of your battery.

Please note that some battery manufacturers retain a portion of the annual incentive payment. SunRun, issues a flat $250 per year and the incentive is not performance based. Please review your manufacturer’s details linked above to confirm how much, if any, of your incentive will be retained by the manufacturer.

2025 Season	Summer
Incentive per average kW discharge ($/kW season)	$275
Season Dates	June 1 – September 30
Number of events	30 – 60
Event Duration	3 hours maximum
Event timing	3 p.m. – 8 p.m.

Customers will have the above summer incentive rates locked in for the first five summers of participation.

If there is an extreme weather event forecasted, Cape Light Compact will not discharge your battery for a peak demand event so that it remains ready to power your home in the event of an outage.

As more battery and inverter manufacturer partners are added to the program, the Compact will update this list.

Program Materials

Rules and Information for CLC ConnectedSolutions Residential Battery Program

FAQs – Residential Battery Storage ConnectedSolutions Program

What are the eligibility requirements?

To enroll your home battery in Cape Light Compact’s ConnectedSolutions, you must meet the following eligibility criteria:

You are an Eversource residential electric customer located on Cape Cod or Martha’s Vineyard
Your battery is connected to a building that pays into the Cape Light Compact’s energy efficiency fund and is interconnected to the grid
Your battery is made by one of our approved manufacturers or connected to an approved inverter
Your battery performs according to what is established by your interconnection agreement with Eversource
The battery is less than 50kW. If it is larger, please contact the Compact about enrolling in the commercial ConnectedSolutions program

A summary of the eligible models is below. We are looking into additional battery manufacturers and will update this webpage as new eligible manufacturers are added.

Manufacturer	Eligible Inverters	Eligible Batteries
Enphase	Enphase IQ series microinverters, Enphase M-series microinverters	Encharge 3, Encharge 10, Tesla Powerwall 2, Tesla Powerwall+
FranklinWH	All Installations	All Installations
Fortress Power	Avalon, FP-10 Max, eVault Max 18.5kWh, eFlex 5.4 kWh, FlexTower, eSpire Mini, eSpire 233, eSpire 280 systems	Paired with Avalon inverters (Avalon HV 11.4kw or Avalon HV 7.6kw), Batteries must be paired with Envy Inverter (8, 10, 12 kW)
Generac	11.5 KW PWRCELL 2 inverter (paired with PWRCell 2 M3 through M6), 7.6 KW 1Ø PWRCELL INVERTER or 11.4 KW 3Ø PWRCELL INVERTER (paired with PWRCell M3 through M12 battery)	PWRCell 2 M3 – M6 (paired with 11.5 KW PWRCELL 2 inverter, PWRCell M3 – M12 (paired with 7.6 KW 1Ø PWRCELL inverter or 11.4 KW 3Ø PWRCELL inverter)
QCell		Q.HOME CORE H3S/H7S
Sol-Ark	Sol-Ark 12K, Sol-Ark 8K, Sol-Ark 5K	Any 48V Battery
SolarEdge	SE3000H-US, SE3800H-US, SE3800A-US, SE6000H-US, SE7600H-US, SE7600A-US	LG Chem RESU10H, Tesla Powerwall 2, Tesla Powerwal+
Sonnen	Outback Power Radian	Sonnen Eco, Sonnen Ecolinx
Tesla	All Solar Inverters**	Tesla Powerwall 2, Tesla Powerwall+

**Tesla Powerwall has an internal inverter

You can work with your battery installer or manufacturer to specify the maximum amount of energy you want to contribute during ConnectedSolutions events. To ensure you have energy if you need it, Cape Light Compact will not call events if a severe storm is forecast to ensure your battery remains fully charged.

We calculate performance by taking the average kilowatts (kW) your system contributes per event, averaged over the season. Any events where the battery does not dispatch, which could be a result of customer choice or a technical issue, will be recorded as a zero and included in the average seasonal performance.

The incentive paid to you depends on three factors 1) the incentive rate, 2) the average kW your battery contributes and 3) what, if any, portion of the incentive your battery installer or manufacturer collects in return for managing your participation. The current incentive rate is $275/kW for the summer. Please consult your battery installer or manufacturer for your battery’s expected contribution and information about what, if any, portion of the incentive they collect.

You can enroll via the manufacturer links above. To be eligible to participate, you should also be sure to submit an interconnection application to Eversource’s interconnection department. Your battery installer can help you with this as well.

If you already have a battery, you can sign up through your battery/inverter manufacturer at the links at the top of this page.

Yes, you can choose any installer you want to install your battery system.

Customers will receive the same summer incentive rate for five years unless they request to unenroll. If the program and incentives are still available after the five years, the customer can continue to participate at whatever the current incentive rate is.

Please contact your battery/inverter manufacturer, or email connectedsolutions@capelightcompact.org or capelightcompact@energyhub.com to unenroll from ConnectedSolutions.

Please note: you will not be eligible for the incentive if you unenroll part-way through a season.

Depending on your battery, you may not receive notification before all events. Cape Light Compact sends a signal to the battery or inverter manufacturer the day before an event is called, but whether the battery owner receives the notification varies by manufacturer. Please discuss with your battery or inverter manufacturer about whether you should expect to be notified before events.

Customers enrolled in the summer season should expect an event to be called most days in the summer, as long as the grid is functioning normally (Cape Light Compact will not call an event if there are significant outages due to a storm).

Home batteries and installation costs are eligible for 0% financing through the Mass Save HEAT loan sponsored by Cape Light Compact. Note that the HEAT loan does not cover solar PV, but will cover the incremental costs for adding storage to a solar PV system. If you would like to apply for battery equipment and installation financing through the HEAT Loan program, please visit the Heat Loan page. Your battery installer will need to provide a quote for just the incremental costs of adding storage – see our battery HEAT Loan quote guidelines.

Income qualified customers may also be eligible for financing when being installed alongside weatherization or heat pumps through the Energy Saver Home Loan Program.

Yes, as long as your battery is connected to a home solar PV system and meets the other requirements of the SMART program. For more information visit www.MASmartSolar.com.

To receive SMART storage adder incentives, batteries must be discharged to the grid a minimum of 52 times a year OR must participate in ConnectedSolutions, in accordance with DOER’s SMART Energy Storage Guideline, which can be found here.

No, the battery must be connected behind the meter to a building/facility that pays into the Energy Efficiency Fund to be eligible for ConnectedSolutions incentives. Systems greater than 50 kW, should apply through the Commercial ConnectedSolutions program.

You can contact us by emailing connectedsolutions@capelightcompact.org.