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DeWitt County approves Prairie Flats Solar siting permit after debate over inverter cybersecurity condition

DeWitt County Board · August 21, 2025
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Summary

After several motions to add and remove a cybersecurity condition, the Board approved Prairie Flats Solar's siting permit for a commercial solar facility and battery storage; earlier attempts to require third‑party inverter cybersecurity verification failed to pass as an enforceable condition.

The DeWitt County Board revisited a siting permit for Prairie Flats Solar, LLC — a proposed commercial solar energy facility with battery storage at Tabor Road and Trust Road — and debated whether to require an "Inverter Cybersecurity Assurance" condition before energization. The proposed condition would have required third‑party cybersecurity assessments and manufacturer affidavits confirming that inverters lack undocumented remote‑shutdown features and that communication pathways are secured.

Board members moved repeatedly to add, remove and re-add the cybersecurity condition. One motion to add a condition setting verification standards passed in an initial vote, but subsequent procedural motions and a later motion to approve the permit with the condition failed. The Board ultimately approved the siting permit without the final cybersecurity amendment; Carter abstained on the final approval, and several members had voted against adding the cybersecurity condition earlier. The permit covers parcels 07-26-200-007, 07-26-200-006, 07-23-200-001, 07-24-100-001 and 07-22-200-004.