Indiana data centers' power demands, diesel generators raise environmental concerns
The Indianapolis Business Journal examined the significant energy demands of data centers in Indiana, focusing on their reliance on diesel generators for backup power. Purdue Polytechnic's Xiaonan Lu discussed the necessity of uninterruptible power for data centers. The article highlights environmental concerns regarding generator emissions, despite industry claims of limited use, and notes approvals for hundreds of generators for Google and Amazon facilities.
The Indianapolis Business Journal recently featured an article by Joey Harris detailing the increasing environmental and logistical challenges posed by the substantial energy needs of data centers across Indiana. The report particularly highlighted the industry's dependence on diesel generators, which data center operators install in large numbers to ensure continuous operation in the event of primary grid failures.
Xiaonan Lu, an associate professor at Purdue Polytechnic's School of Engineering Technology, emphasized in the IBJ piece that data centers cannot tolerate power interruptions, as even brief outages can disrupt critical workflows. While industry representatives assert that these generators are primarily used for monthly testing and emergencies, the sheer scale of installations, such as 174 approved for a Google facility in Fort Wayne and 472 for an Amazon campus in New Carlisle by the Indiana Department of Environmental Management, has drawn scrutiny.
Environmental advocates voice concerns that even infrequent use of these generators contributes to harmful particulate matter and emissions. Conversely, the industry points to current limitations of alternative energy sources, noting that natural gas requires on-site pipelines and battery storage remains cost-prohibitive for indefinite backup. Lu also indicated that as the electric grid faces growing pressure from aging infrastructure and severe weather, the role of localized backup power for data centers will become even more crucial, potentially even aiding the broader grid during peak demand by reducing load.