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Draft UDO sets setbacks, screening and decommissioning for battery storage and narrows commercial solar allowances

Madison City Planning Commission · December 4, 2025
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Summary

The proposed ordinance treats battery-energy storage as a separate use with two tiers (≤600 kW onsite backup and >600 kW utility-scale), sets setbacks (e.g., 350 ft from dwellings for larger systems), requires decommissioning plans and coordinates commercial solar siting with rezoning and special-exception processes.

Amy told the Commission the UDO treats battery-energy storage as a distinct use with two tiers and specific siting, setback and decommissioning requirements.

Battery storage: Tier 1 (typically on-site backup) is limited to systems of about 600 kilowatts or less and is treated like other small equipment cabinets; Tier 2 (larger systems over 600 kW) will require more space, screening and operational standards. Amy recited minimum setbacks for larger systems: 350 feet from a dwelling or community building, 200 feet from an adjacent property line, and 50 feet from a right of way; she also said owners must submit decommissioning plans and refile them every five years or on ownership change.

Solar and wind: The consultant said the draft mirrors many county solar standards but uses slightly reduced minimum setbacks (the draft cited a 350-foot figure from the county and noted the city’s standard is somewhat smaller in places). Commercial solar is not permitted by-right in most residential districts; it would require rezoning and a special exception in most cases. Wind was described as unlikely for the city due to regional wind patterns.

Why it matters: The rules aim to balance siting of energy infrastructure with neighborhood safety and compatibility—higher-setback requirements for larger battery systems and decommissioning obligations aim to manage long-term site impacts.

Next steps: Staff invited additional comments and noted these provisions will be considered in the upcoming hearings.