Net Metering
In addition to the Interconnection Application, an eligible customer must complete and submit Schedule Z in order to be considered for Net Metering.
Schedule Z
If you are seeking to allot your credits to other Unitil accounts, please download the following spreadsheet, fill it out completely and return it as a workable Excel spreadsheet. Upload your documents securely through our Document Upload Portal.
Municipal or Government Entities
A customer wishing to be certified as a municipal or other governmental entity MUST be certified by the D.P.U. as such before the company can provide net metering service or allocate credits under the public net metering cap. Please complete the government application below and submit to the D.P.U. and the Company.
MA Net Metering Government Application
NHPUC Requirements - rules and technical requirements for net metering set forth by the New Hampshire Public Utilities Commission. For Customers who’s Applications for Interconnection were deemed complete prior to September 1, 2017, PUC Rule 900 applies. For Customers who’s Applications for Interconnection were deemed complete on or after September 1, 2017, the Company tariff for Schedule QF (Rates Applicable to Qualifying Facilities), section entitled Net Energy Metering applies.
Applicable Tariff
Group Net Metering
The NHPUC established new rules regarding Group Net Metering effective January 8, 2015, which were modified by legislation effective July 2018: PUC 900 Rules
For customers approved to be Group hosts by the NHPUC, payments will begin in the bill cycle following the first meter read date after your approval in accordance with the NHPUC rules. Payments for net excess generation will be made at full retail kWh rates and will include the energy service charge only for customers who are receiving energy service from Unitil.
Submit an Online Application
We have re-designed our interconnection application portal to streamline the application process. With our new form, you can create an account to keep track of all of your application submissions.
We will ask you a few preliminary questions to determine which application process you will need to complete. Upon completion, your application will be submitted for review by a Unitil representative.
** Attention MA Applicants **
As a result of the high interest in solar interconnection and renewable energy, we are at a point of saturation in some portions of our service territory. On a day of optimal generation, the potential exists for the renewable generating facilities to meet the energy needs of all the homes around them and also have excess energy feed backwards into the nearest supply substation. Any additional generation in the area may lead to safety issues at the nearby substation without specific modifications.
Unitil is required to follow the tariffs which govern interconnections in Massachusetts, and the tariff states that all system modifications resulting from solar saturation have to be paid for by the interconnecting customer or customers that trigger the need of system modification. However, the cost of these modifications are often well above the initial planned costs for these installations, which in turn leads to project delays.
As a Company, we recognize the cost of this particular modification is high and that the tariff as written presents real obstacles for some small interconnection projects, especially at the residential level. While we are required to follow these tariffs as currently written, we have raised the issue with the Massachusetts Department of Public Utilities (DPU), the state regulatory body which governs such matters. The DPU has agreed to open up a review of this tariff and explore alternatives. We are committed to continuing to work with the Department of Public Utilities to find a more equitable solution for all of our customers, but no change is expected in the tariff until 2020 at the earliest.
Map of Affected Streets by Town
PDF Map of Affected Streets
Submit an Application
Document Upload Portal
If you have previously completed the online application process, you can upload any accompanying documents securely through our Document Upload Portal.
Upload Documents
