Texas SB 6 (2025): Large Load Interconnection and Curtailment in ERCOT (data centers)
Texas · Tex. SB 6 (2025), amending Tex. Util. Code
Texas now regulates how very large electricity users such as data centers connect to the ERCOT grid. Loads over 75 MW face a minimum $100,000 transmission study fee and financial commitments, and new large loads must install remote-disconnect capability so ERCOT can curtail them during grid emergencies.
Technical detail
SB 6 (89th Leg.) amends the Utilities Code to require PUCT interconnection standards for large loads (default 75 MW threshold), mandatory curtailment protocols for post-2025 interconnections during firm load shed, and uniform cost-allocation/transmission screening fees.
Who is protected: ERCOT ratepayers and grid reliability generally
Who must comply: Large-load customers (>75 MW) including data centers and crypto miners; transmission providers and utilities
Key facts
| Jurisdiction | Texas |
|---|---|
| Level | State |
| Status | In effect |
| Protection strength | Limited protection |
| Effective date | 2025-06-21 |
| Enacted | 2025-06-20 |
| Citation | Tex. SB 6 (2025), amending Tex. Util. Code |
| Enforced by | Public Utility Commission of Texas; ERCOT |
| Private right of action | No — agency enforcement only |
| Penalties | Curtailment/disconnection authority; interconnection denial; fees and financial commitments |
| Topics | data-center siting and energy · consumer protection |
| Last verified | 2026-06-10 |
| Official source | Texas Legislature Online: SB 6 (89R) ↗ |
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Related data-center siting and energy rules elsewhere
- SB 484 (FL Data Center Costs) · In effect
- Maine Data Center Moratorium (vetoed) · Vetoed
- VA Data Center Siting Bill (Vetoed) · Vetoed
- VA Data Center Tax Exemption · In effect
- VA Data Center Cost-Allocation Law · In effect
- GA Data Center Tax Break Fight · Vetoed
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