Data Center Large Load Commercial Rates (HB6135)

Current understanding

HB6135 would amend 1939 PA 3 (MCL 460.1–460.11) by adding Sec. 10ii to establish a distinct large load commercial rate category for data centers under Michigan utility law. The bill is tie-barred to HB6137, HB6138, HB6139, HB6140, HB6141, and HB6142, suggesting a coordinated package addressing data center electricity demand, cost allocation, and ratepayer protection. Status: introduced; the mechanism would give the MPSC an explicit statutory hook to design rates that isolate data center load from other commercial customers.

Evidence log

• 2026-08-26 — Businesses: other; clean and renewable energy requirements for data centers; provide for. Creates new act.: cross-connection with data-center-clean-energy-requirements: Both bills target large data-center electricity demand — HB6264 on the generation-mix side and HB6135 on the rate-design side. (novelty: 3)
• 2026-05-14 — Public utilities: other; contracts to service data centers; require to be treated as a contested case. Amends 1939 PA 3 (MCL 460.1 - 460.11) by adding sec. 6bb.: cross-connection with data-center-service-contracts-contested-case: Both bills address MPSC oversight of utility service to data centers — HB5982 governs the procedural review of contracts while HB6135 sets substantive rate structure for large-load commercial customers. (novelty: 3)
• 2026-06-04 — Public utilities: public service commission; moratorium on approvals by the Michigan public service commission of any new enterprise data centers; provide for. Amends 1939 PA 3 (MCL 460.1 - 460.11) by adding sec. 10ii.: cross-connection with mpsc-enterprise-data-center-moratorium-sb1020: Both bills work through MPSC authority over data centers — SB1020 halts approvals entirely while HB6135 restructures large-load commercial rates for those the MPSC does approve. (novelty: 3)
• 2026-06-04 — Businesses: other; moratorium on certain approvals for and operation of any new data centers; provide for. Creates new act. TIE BAR WITH: SB 1019’26: SB 1018 (tie-barred with SB 1019) proposes a blanket moratorium on approvals and operation of new data centers, representing a competing Senate approach that would pause the very facilities HB6135’s large-load rate class is designed to regulate. (novelty: 3)
• 2026-06-18 — Public utilities: rates; separate rate class for large-load customers; require. Amends 1939 PA 3 (MCL 460.1 - 460.11) by adding sec. 10ii.: Reintroduced/redescribed framing of the Sec. 10ii amendment to 1939 PA 3 as a general ‘separate rate class for large-load customers’ requirement, confirming the mechanism (mandated rate class isolation) while broadening the customer descriptor beyond data centers. (novelty: 2)
• 2025-12-18 — Energy: other; energy and water usage report requirements for data centers; provide for. Amends sec. 5a of 1939 PA 3 (MCL 460.5a).: cross-connection with data-center-energy-water-reporting-sb0762: SB0762’s energy usage reporting for data centers would generate the kind of consumption data relevant to HB6135’s large-load commercial ratemaking for the same facilities. (novelty: 2)
• 2026-06-25 — Businesses: other; requirements for data center decommissioning, dismantling, and remediation; provide for. Amends 1939 PA 3 (MCL 460.1 - 460.11) by adding sec. 10jj. TIE BAR WITH: HB 6135’26, HB 6140’26, HB 6141’26, HB 6137’26, HB 6138’26, HB 6139’26: HB6142 (tie-barred companion) adds a decommissioning, dismantling, and remediation regime under 1939 PA 3 (new Sec. 10jj), complementing HB6135’s large-load rate structure by attaching end-of-life obligations to the same utility act. (novelty: 3)
• 2026-06-25 — Public utilities: electric utilities; project labor agreements; require for certain data center contracts. Amends 1939 PA 3 (MCL 460.1 - 460.11) by adding sec. 10kk. TIE BAR WITH: HB 6135’26, HB 6140’26, HB 6137’26, HB 6138’26, HB 6142’26, HB 6139’26: HB6141 (tie-barred companion) adds a project labor agreement mandate for electric utility contracts tied to data centers, extending the HB6135–HB6142 package from ratemaking into construction labor standards on utility infrastructure serving data center load. (novelty: 3)
• 2026-06-25 — Construction: permits; acoustic engineering report for data center; require to receive building permit. Amends 1972 PA 230 (MCL 125.1501 - 125.1531) by adding sec. 10a. TIE BAR WITH: HB 6135’26, HB 6140’26, HB 6141’26, HB 6137’26, HB 6138’26, HB 6142’26: HB6139 (tie-barred companion) extends the HB6135–HB6142 data center package into construction-code territory, requiring an acoustic engineering report as a condition of receiving a building permit. (novelty: 3)
• 2026-06-25 — Businesses: other; data center water usage requirements; provide for. Creates new act. TIE BAR WITH: HB 6135’26, HB 6140’26, HB 6141’26, HB 6137’26, HB 6142’26, HB 6139’26: HB6138 (tie-barred companion) adds a water usage requirements act to the data center package, extending the coordinated framework beyond electricity ratemaking into water resource regulation. (novelty: 4)
• 2026-06-25 — Businesses: other; community benefit agreements; require certain data centers to be subject to. Creates new act. TIE BAR WITH: HB 6135’26, HB 6136’26, HB 6140’26, HB 6141’26, HB 6138’26, HB 6142’26, HB 6139’26: cross-connection with data-center-community-benefit-act: Both are core components of the HB6135–HB6142 data center package, pairing utility large-load ratemaking (HB6135) with mandatory community benefit agreements (HB6137). (novelty: 3)
• 2026-06-25 — Businesses: other; Michigan zoning enabling act; make subject to the data center community benefit agreement act. Amends sec. 205 of 2006 PA 110 (MCL 125.3205). TIE BAR WITH: HB 6137’26: Cross-reference: HB6136 (zoning enabling act amendment subjecting local zoning to the Data Center Community Benefit Agreement Act) is part of the same tie-barred data center package anchored by HB6137, extending the package beyond ratemaking into land-use regulation. (novelty: 2)
• 2026-06-25 — Public utilities: rates; large load commercial rates for data centers; establish. Amends 1939 PA 3 (MCL 460.1 - 460.11) by adding sec. 10ii. TIE BAR WITH: HB 6140’26, HB 6141’26, HB 6137’26, HB 6138’26, HB 6142’26, HB 6139’26: cross-connection with utility-rate-increase-disclosure: Both bills amend 1939 PA 3 as part of an apparent multi-bill package touching utility ratemaking and disclosure in the same legislative cycle. (novelty: 3)

Open questions

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