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How a Referee for the Grid Can Lower Utility Bills — Episode 276
Brief
The conversation moves through technical examples and policy parallels. Wellinghoff recounted a 2008 FERC demo using a University of Delaware EV to provide regulation — illustrating how charging modulation can deliver grid services while still replenishing vehicles — and cited a then‑estimated $100/month earning for such service. He noted his own garage hosts over 200 kW of vehicle/battery capacity that cannot participate today because many regions lack markets or independent operators. Both speakers agreed IDSOs could raise reliability and lower costs by favoring distributed flexibility (VPPs, demand response, EV charging control) over costly distribution upgrades; Wellinghoff pointed to Voltus’ BYOC work and the low (~30%) utilization of U.S. T&D infrastructure as evidence of unrealized value. Policy constraints and gaming risk were emphasized: Wellinghoff likened possible utility manipulation of VPP tariffs to historical PURPA avoided‑cost games and argued an independent entity must set valuations. They debated feasibility: Wellinghoff admitted utilities have little incentive to give up control and said change likely requires state legislative will (or pressure/financing from hyperscalers — he cited ~145 GW of data‑center signups). Texas was identified as a comparatively ready jurisdiction; past IDSO proposals (e.g., Maui, Maine) stalled. The hosts concluded IDSOs present a structural remedy to affordability and interconnection tensions — promising greater consumer choice and cheaper, cleaner grid services if political barriers can be overcome.
Why it matters
Jon Wellinghoff (chief regulatory officer at Voltus; former FERC chair) and James Tong proposed independent distribution system operators (IDSOs) in a 2014 paper to remove the conflict of interest that occurs when utilities both own distribution assets and operate the markets that pay for those assets.
Key details
- Wellinghoff said IDSOs would run planning and operations at the distribution level, create local market structures (e.g., tariffs enabling neighbors to buy excess solar), and let consumers and devices bid into markets — providing flexibility without utilities deciding which infrastructure to build.
- Wellinghoff described a 2008 FERC demonstration using a University of Delaware EV to provide regulation services, estimating then that an auto owner could earn about $100/month; he also noted he personally has over 200 kW of EV and battery capacity (Mustang Mach‑E + Rivian RT1 + two Tesla Powerwalls) that today largely sits idle for grid services.
- Wellinghoff highlighted system‑level numbers and trends: U.S. transmission/distribution systems are utilized at roughly 30% on average, and an analyst report he cited shows about 145 GW of data center capacity already signed up — a growing load driver that sharpens affordability concerns.
- On policy parallels, Wellinghoff compared IDSOs to PURPA (1978) qualifying‑facility contracts: utilities historically manipulated avoided‑cost tariffs to limit competition, so he argued IDSOs should oversee valuation/tariff setting rather than incumbent utilities to prevent similar gaming.
- Wellinghoff and Farrell agreed IDSOs could lower costs and boost reliability by enabling virtual power plants, demand response and EV/battery aggregation instead of capital upgrades; Wellinghoff pointed to Voltus’ BYOC (bring‑your‑own‑capacity) work at the wholesale level as an analogous model.