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Maryland PSC moves to add vehicle-to-grid interconnection rules under DRIVE Act deadline
Summary
The Public Service Commission considered proposed vehicle-to-grid (V2G) interconnection regulations from the PC 44 work group, moved to amend COMAR to add V2G provisions, and recorded ayes to adopt the changes subject to nonsubstantive edits. The rules implement DRIVE Act requirements and await UL standard updates.
John Borkoski, leader of the PC 44 interconnection work group, told the Public Service Commission that the Maryland General Assembly’s 2024 DRIVE Act requires the commission to adopt regulations by 05/01/2025 establishing expedited interconnection processes for bidirectional electric vehicle systems while ensuring utilities have adequate time to preserve system reliability.
Borkoski said the PC 44 work group filed proposed V2G (vehicle-to-grid) regulations with the commission on 10/30/2024. "We are proposing regulations," he said, adding they set definitions, provide V2G standards and certification pathways, and treat V2G systems similar to energy storage devices for interconnection purposes. He also described provisions allowing V2G systems to operate as managed charging or as V1G systems and noted annual reporting requirements included in the draft rules.
Borkoski warned that industry standards are still evolving and said the work group is awaiting Underwriters Laboratories (UL) 1741 Supplement C for AC V2G systems; he said further changes to the proposed regulations will likely be needed after applicable standards are published. He also noted supporting comments filed in the docket by the Joint Exelon Utilities, Mobility House, and the Vehicle-Grid Integration Council (VGIC).
Following the presentation, an unidentified commissioner commended the work group for producing a consensus product. An unidentified speaker then moved to amend the Code of Maryland Regulations (COMAR) to add sections for vehicle-to-grid interconnection and to revise specified COMAR provisions, subject to nonsubstantive typographical changes required for COMAR drafting. The mover recited affected sections, citing acceptable standards, definitions, and record-retention and reporting requirements in COMAR.
A voice vote was recorded on the motion. The transcript captures the name 'Commissioner Barbay' and multiple 'aye' responses; the mover's motion was accepted and the commission will adopt the proposed regulations subject to nonsubstantive edits. The record notes that the commission opened a rulemaking docket and invited comments; Borkoski requested commission approval of the proposed regulations on behalf of the PC 44 work group.
Next steps: the commission adopted the motion subject to nonsubstantive edits and the work group expects to revisit the rules after publication of applicable industry standards such as UL 1741 Supplement C.
