Active managed charging scales from pilot to policy instrument as utilities target $5–18B in deferred distribution costs
California PAO 2025: active V1G saves $5–18B in distribution costs by 2040; 32 states acted in 2025, 9 programs approved 2024; Massachusetts, Brattle/NY concur — infrastructure deferral, not just demand response
Headline Finding
Active managed EV charging — whereby customers cede real-time charging control to utilities or aggregators — is transitioning from pilot experiment to scalable grid instrument, with regulators and analysts quantifying the fiscal stakes. The California Public Advocates Office reported in 2025 that mass shifting of peak EV load could save between $5 billion and $18 billion in distribution costs by 2040. Massachusetts regulators called EV load management a ‘no-regrets strategy,’ and the Brattle Group reached similar conclusions for New York. These findings establish active V1G not merely as a demand-response tool but as a lever that can defer or eliminate costly distribution infrastructure upgrades — directly bearing on the fiscal and energy value levers that cities and utilities must govern as EV penetration grows.
Detail
The United States had 7.2 million electric vehicles on the road as of the article’s publication in April 2026, with battery electric vehicles holding a 5.2% share of U.S. car sales in March 2026 — sustaining the approximately 5% share averaged since November 2025, per S&P Global. EV load is expected to grow significantly in coming years even absent federal policy support, placing mounting pressure on distribution infrastructure.
Passive managed charging programs — which use time-of-use rates to encourage off-peak charging but leave scheduling to customers — have produced unintended consequences, including a secondary demand peak right after midnight in California when rates drop. Active managed charging (V1G) addresses this by allowing utilities or service providers to adjust load in real time. Regulators approved nine new active managed charging programs in 2024, and in 2025 legislative or regulatory efforts in 32 states and Puerto Rico addressed improving residential access to managed charging, according to the North Carolina Clean Energy Technology Center’s annual state EV policy review.
The California Public Advocates Office reported in 2025 that EV charging management had a ‘significant’ impact on costs for all three investor-owned utilities in the state, and that ‘mass shifting of peak EV load away from the peak could save between $5 billion and $18 billion in distribution costs by 2040.’ The Massachusetts Department of Energy Resources called EV load management a ‘no-regrets strategy for reducing peak load,’ emphasizing that without active managed charging, off-peak price signals can cause large numbers of EVs to begin charging simultaneously, potentially overloading local distribution infrastructure. The Brattle Group, in a report prepared for the New York State Energy Research and Development Authority, reached similar conclusions about the value of active V1G programs.
Baltimore Gas and Electric was among the first investor-owned utilities to offer EV-o nly time-of-use rates and later an active V1G program. Active managed charging ‘significantly changed the load curve created by the EV-only time-of-use rates,’ according to BGE’s director of clean energy solutions Divesh Gupta; results were compelling enough that in 2023 regulators approved expanding the program from 6,900 participants to 30,000. Pacific Gas & Electric, rebranding active V1G as ‘optimized charging,’ had more than 6,000 customers enrolled as of publication and proposed expansion to 50,000 customers. PG&E’s Electrification Impact Study Part 2, released in January 2026, concluded that much of the cost for EV charging loads will fall at the distribution system level, and that active V1G ‘can meet the new electrification load and defer or reduce the distribution system upgrade costs that will otherwise be needed.‘
Governance Implication
- The fiscal lever is material and quantified: the $5–18 billion distribution-cost savings range cited by California regulators for 2040 represents a direct fiscal value that active V1G programs can create or forfeit depending on whether utilities scale active programs fast enough — making the instrument a core fiscal-governance question for state regulators and city planners.
- The energy lever turns on program design: passive time-of-use rates demonstrably create secondary peaks (California’s post-midnight surge), meaning the choice between passive and active managed charging is not merely technical but a governance decision with measurable grid-reliability consequences.
- The nine new active managed charging programs approved in 2024 and the 32-state legislative activity in 2025 signal that the regulatory clock is beginning to move, but the gap between current enrollment figures (BGE at 30,000; PG&E proposing 50,000) and the millions of EVs already on the road indicates that scaling governance instruments — rate design, enrollment rules, interoperability mandates — has not kept pace with fleet growth.
- For cities and regional authorities, the distribution-deferral value of active V1G is a direct substitute for capital expenditure on grid upgrades; failure to mandate or incentivize active programs shifts those costs onto ratepayers, making this a fiscal-exposure question as much as an energy one.
- The Massachusetts framing of active V1G as a ‘no-regrets strategy’ provides a regulatory template: cities and state commissions that adopt this framing can justify active managed charging mandates on cost grounds alone, independent of climate or EV-adoption policy — lowering the political threshold for instrument adoption.
Sources
https://www.utilitydive.com/news/as-ev-load-grows-utilities-use-managed-charging-to-harness-flexibility-lo/816859/ https://www.energy.ca.gov/files/2025-01/NCCETC-2024-State-EV-Policy-Review.pdf https://www.mass.gov/doc/ev-load-management-report/download