Relating to the participation of electric vehicles in the ERCOT market.
HB 3511 allows electric vehicle owners in Texas to connect their vehicles to the power grid and sell stored electricity back to the grid, earning credits for supplying power during peak times. It requires the Texas Utility Commission to establish safety and technical standards based on existing industry codes (like UL and NEC) and create a program enabling EVs to participate in grid services through utilities. This directly affects EV owners, electric utilities, and ERCOT market operators by integrating vehicles as grid assets. The law takes effect September 1, 2025.
Bill status
passed
3 of 5 stages cleared
Introduction
Mar 2025
Committee Review
Apr 2025
House Passage
Apr 2025
Senate Passage
Governor
Introduced Mar 24, 2025
Last action Apr 30, 2025
Maddy AI version diff · 1 comparison
What changed between versions
Introduced
→
Engrossed
·
4 edits
·
Apr 30, 2025
MODERATE
The bill was amended to expand its scope from just electric vehicle interconnection to include aggregation of electric vehicles in the ERCOT market. The changes clarify that electric vehicle owners can participate in market mechanisms through registered aggregators and update the standards compliance requirements to include the National Electrical Code and National Electrical Safety Code.
Scope change
The bill's scope was expanded to explicitly include aggregation of electric vehicles in ERCOT market mechanisms, allowing them to participate through registered aggregators or load serving entities.
SCOPE
Changed the title and scope from 'INTERCONNECTION OF ELECTRIC VEHICLES' to 'INTERCONNECTION AND AGGREGATION OF ELECTRIC VEHICLES' to include market participation through aggregation.
ELIGIBILITY
Modified eligibility criteria to allow electric vehicle owners to participate in ERCOT market mechanisms through registered aggregators or load serving entities, rather than directly.
TECHNICAL
Updated the standards compliance language to explicitly include the National Electrical Code and National Electrical Safety Code alongside Underwriters Laboratories and IEEE standards.
REQUIREMENT
Changed the requirement from establishing standards for electric vehicles that may be interconnected to establishing standards for the interconnection of electric vehicles in the ERCOT power region.
Floor votes · House Apr 30, 2025
How they voted
101–36
Passed · 7 other
Total votes 144
Apr 30, 2025
D
Democratic59
94% Yea
R
Republican85
52% Yea
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
28
Key actions
8
Committee
6
Amendments
4
Apr 30, 2025
Introduced
Received from the House
upper
Apr 30, 2025
Lower · Passed
Passed
lower
Apr 29, 2025
Lower · Passed
Passed to engrossment as amended
lower
Apr 29, 2025
Introduced
Amendment to amendment tabled
lower
Apr 29, 2025
Introduced
Amendment(s) offered
lower
Apr 29, 2025
Lower · Passed
Amended
lower
Apr 23, 2025
Lower · Passed
Committee report sent to Calendars
lower
Apr 22, 2025
Lower · Passed
Committee report distributed
lower
Apr 14, 2025
Lower · Passed
Reported favorably as substituted
lower
Apr 9, 2025
Lower · Passed
Left pending in committee
lower
Apr 9, 2025
Lower · Passed
Testimony taken/registration(s) recorded in committee
lower
Mar 24, 2025
Committee
Referred to State Affairs
lower
Mar 24, 2025
Introduced
Read first time
lower
5 primary · 2 co-sponsors
Sponsors
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