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Connectder, Tesla, And Enphase File Petition To Amend The Small Generator Interconnection Rules
From Petition:
[ *** ] Pursuant to D.C. Code Sections 2-505(b) and (c), and Sections 101.1 and 104.1 of the Public Service Commission of the District of Columbia’s (Commission) Rules of Practice and Procedure, ConnectDER, Tesla, and Enphase respectfully request that the Commission initiate a rulemaking to amend 15 DCMR Chapter 40 to implement a standardized process for reviewing and approving customer-owned meter socket adapters (MSAs, also referred to as “meter collars”) for the purpose of facilitating the deployment of distributed energy resources (DERs) and electrification retrofits. There are currently no regulations within the District of Columbia Municipal Regulations (D.C.M.R.) regarding Meter Socket Adapters, and the Potomac Electric Power Company (Pepco) does not currently evaluate meter socket adapters within its interconnection application review process. Without such regulations in place, District homeowners cannot access this cost-effective technology that can save thousands of dollars in electrical work when adding residential solar, battery energy storage systems (BESS), and new loads such as electric vehicle (EV) charging. The proposed rule is reflective of regulations adopted in Maryland’s COMAR 20.50.09.07, which were established and adopted through a stakeholder review process involving MSA manufacturers and utilities including Pepco. [ *** ]
Petition (08/18/2025)
Statement of Commissioner Beverly (08/19/2025)
RM40-2025-01-E (08/18/2025)
(Petition To Amend The Small Generator Interconnection Rules In Chapter 40 Of The Commission’s Regulations)
