Santa Fe commissioners delay final vote on large battery-storage permit amid safety, fiscal and code questions

Santa Fe County commissioners recessed a special public-hearing session on Aug. 11 and will reconvene at 1:30 p.m. to continue a vote on a conditional-use permit (CUP) for a large battery energy storage system after extended questioning about safety, emergency planning, fiscal effects and code compliance.

County land-use staff opened the hearing with updates requested by the commission, including a summary of comparative studies about sodium-ion and lithium-ion battery systems. "The major takeaway is that in based on the data that's available, the rates of failure are not majority related to the battery cell itself, but rather the all the other components that go into the systems," Land use staff Alexandra said, summarizing materials prepared by sustainability staff Jacqueline Beam and William Donahue.

Why this matters: the project has raised repeated public safety and fiscal questions during multiple hearings and an administrative record that included hundreds of letters. Commissioners pressed staff and public-safety officials for specifics that would inform conditions for approval or a decision to deny the CUP.

What staff told the board - Supply and technology: Staff noted sodium-ion technology is currently limited at scale; a cited pilot is a roughly 5-megawatt demonstration and the sodium technology supply chain was described as immature. Staff also said sodium-ion cells are less energy-dense and would require more physical space than lithium-ion equivalents. - Wages and construction: The applicant reported an average construction wage of about $41 per hour and roughly 200 construction jobs;…