SECTION 1.  Section 139 of chapter 164 of the General Laws, as amended by chapter 75 of the Acts of 2016, is hereby amended by inserting after the word “require” in the last line of paragraphs (a)(1) and (b)(1/2)(1) and the penultimate line of paragraph (b)(1) the following:-

Such written notice of the identities of the recipients so designated and the amounts of the credits to be attributed to such recipients, and any changes to these designations so requested by the customer, shall be accepted and implemented by the distribution company no less frequently than once per calendar month. 

SECTION 2.  Said section 139 of said chapter 164 as so appearing, is hereby amended by inserting after the word “subsection” in the last line of paragraph (b)(1) a comma followed by the words:-“if the customer consents in writing prior to the distribution company’s purchase”

SECTION 3.

Said section 139, as so appearing, is further amended by inserting after subsection (k) the following subsections:

(l) Upon the request of a customer in writing either by mail or electronically, a distribution company shall provide written electronic confirmation of the value of all net metering credits allocated to each designated recipient of the customer and the dates and associated billing periods of all such allocations. 

(m) For a Class I Net Metering Facility, Class II Net Metering Facility, or Class III Net Metering Facility, including a facility generating market net metering credits, no more than sixty days after net metering credits are generated, the distribution company shall allocate said net metering credits, as designated by the customer, to the designated recipients of those net metering credits who are in the distribution company’s service territory and are located within the same ISO-NE load zone.  Each distribution company shall correct any error in allocation of net metering credits to the recipient designated by the customer within thirty days of either the distribution company’s discovery of the error, or the customer’s provision of notice of the error to the distribution company, whichever is earlier.  Distribution companies shall be responsible for requesting timely approval from the department for amendments to any existing tariffs that may be affected by this subsection.   

SECTION 4.  Section 1 of this act shall be effective January 1, 2018.