Marion County likely to lower data center moratorium threshold to 20 megawatts following workshop
Marion County commissioners held a workshop to discuss data center development, agreeing to lower the threshold for their temporary moratorium from 50 megawatts to 20 megawatts for stricter oversight. This decision followed testimony from a Loudoun County, Virginia supervisor on the economic benefits and hidden pitfalls of unchecked data center growth. County staff will now draft comprehensive land-use regulations.
Marion County commissioners convened a two-hour workshop to examine the complexities of data center development, following their recent decision to enact a temporary moratorium on large-scale proposals. During the session, commissioners agreed to reduce the county's "large data center" threshold from 50 megawatts to 20 megawatts, signaling a move towards stricter regulatory oversight.
A key speaker at the workshop was Mike Turner, an Ashburn District Supervisor from Loudoun County, Virginia, often referred to as "Data Center Alley" due to its 233 data centers. Turner highlighted the significant financial benefits, noting Loudoun County's data centers are projected to generate $1.3 billion in local tax revenue, nearly half of the county's total local tax budget, while requiring minimal county services.
However, Turner delivered a stern warning about the consequences of unchecked development, inadequate regulations, and severe power grid strain experienced in Loudoun County. He dispelled the notion that data centers are major job creators, explaining they employ only 30-40 people per facility once operational. Turner also detailed the dramatic surge in energy demand, particularly with the rise of artificial intelligence, projecting Loudoun County's data center power consumption could exceed 20 GW by 2030, necessitating invasive high-voltage transmission lines.
To safeguard local resources and residents, Turner recommended that Marion County avoid "by-right" data center development, requiring individual board approval through Special Use Permits. He also advised against non-disclosure agreements with developers and emphasized the importance of closed-loop water cooling systems, noise pollution control (including 500-1,000 foot setbacks and strict decibel limits), and independent noise monitoring. Representatives from the St. Johns River Water Management District and the East Central Florida Regional Planning Council also provided input. County planning staff will now draft comprehensive land-use regulations based on the workshop's guidance, which will undergo public review before final commission approval.