Assessor: 400 MW project could yield substantial township tax revenue but most battery value sits on personal-property roll

Township Assessor Kevin summarized how he would value a large battery energy storage facility under current state guidance and depreciation rules. Using 2024 millage and sample rates, Kevin said a $500 million investment could be reflected as a first-year taxable value near $230 million and generate about $1 million in township tax revenue in early years, while much of the facility’s taxable value would be recorded as personal property.

Kevin cautioned the commission that depreciation tables and state guidance on battery storage valuation are evolving. He said appeals from nearby homeowners would remain the mechanism for adjusting individual assessed values, and that any changes in state depreciation schedules could alter long-term local revenue streams.