Electric Vehicle Energy Management System (EV EMS)

Pilot Objective

This pilot tested the ability of EV EMS software and load control technologies to regulate a household’s overall electric load and ensure that the use of an L2 electric vehicle (EV) charger will not cause the home’s main circuit panel to exceed its maximum amperage rating.

Participant Characteristics

There were twelve residential customers enrolled in this pilot — six with an existing EMS device and six who had a new EMS device installed.

Pilot Status

The pilot has successfully concluded, and an Executive Summary is available here.

Pilot Outcomes

Outcomes from this pilot include:

Survey data on participant experiences and satisfaction with EV EMS
Charging data that assessed whether EV EMS activates as intended when the circuit panel is reaching its maximum threshold and how it affected the car’s ability to reach the driver’s anticipated state of charge
Comparison of costs for EMS devices versus utility make-ready costs involving panel and service upgrades
Estimated market size of homes that may benefit from this technology
Understanding potential failure scenarios

Schedule

BE Pilot	Lead Vendor	Partners	Award Date	Pilot In-Field Start Date	Pilot In-Field End Date
EV EMS	WeaveGrid	Emporia, Treehouse	August 2024	February 2025	October 2025