# Washington Trial Demonstrates Managed EV Charging

A Washington state trial involving 58 drivers found that managed electric-vehicle charging shifted 95% of charging load to off-peak periods. The study, commissioned by EnergyHub and prepared by The Brattle Group, estimated annual savings of up to $400 per driver and avoided grid-upgrade costs of up to $180 per EV. The results offer utilities and charging-technology providers evidence to evaluate automated load management and time-of-use rate design, but the trial does not establish that similar results will apply across other utility territories. No solicitation or contract award was reported.

- Utilities and public-sector fleet or charging program planners can assess whether managed charging, interoperability, and time-of-use rates fit their service territories and operational needs.
- Charging-technology providers may use the reported results as market evidence when discussing automated load management with utilities, while clearly distinguishing the Washington trial from guaranteed outcomes elsewhere.
- The signal indicates a potential technology and utility-planning opportunity, not an active procurement; no contract value, solicitation, or procurement deadline was provided.

**Jurisdictions:** sled
**Industries:** Energy & Utilities, Transportation
**Topics:** Digital Infrastructure
**Published:** November 04, 2026

### Vendors
- EnergyHub (Commissioned the study)
- The Brattle Group (Prepared the study)

### Sources
- [A Washington state trial pushed 95 percent of electric vehicle charging into off peak hours automatically, and utilities are dropping flat rate incentives for software that times every plug in itself](https://gcn.com/washington-state-trial-pushed-percent-electric/22994) - gcn.com