WI SB729

Large energy customers with peak electricity demand of 100+ megawatts must pay annual fees to the Department of Administration ranging from $2 million to $4+ million based on demand levels, with 50% deposited into the utility public benefits fund and 50% to WEDC's Green Innovation Fund

Large-scale data centers (25,000+ sq ft with $250 million+ in construction/equipment costs over 60 months beginning July 1, 2026) must pay workers prevailing wage rates as defined under the federal Inflation Reduction Act of 2022

Public Service Commission must establish a "very large customer" class for each electric utility by December 15, 2027, requiring utilities serving these customers to file rate cases every two years to ensure rates are just, reasonable, and not discriminatory

Data centers must obtain green building certification (LEED, Energy Star, BREEAM, or equivalent) within 3 years of operation, and political subdivisions must require annual water usage reporting from data centers

Large-scale data centers seeking WEDC certification for sales/use tax exemptions must meet prevailing wage requirements and derive at least 70% of annual electricity from renewable resources