As data centers rapidly expand, grid constraints are forcing operators to call on emergency diesel generator sets to provide flexibility and load curtailment. However, leveraging backup power for grid support triggers a complex web of U.S. federal and local emissions regulations.

This whitepaper explores how navigating EPA stationary engine designations and site-level air quality permits impacts data center resiliency.

Download it to explore:

• EPA stationary engine designations: Learn the strict legal boundary between Tier 2 certified emergency backup systems and the nearly 90% cleaner Tier 4 certified configurations required for non-emergency demand response programs
• The major source threshold bottleneck: Understand how local air boards calculate maximum operational run hours based on cumulative site-level NOx emissions, particularly within non-attainment geographic zones
• Unlocking grid support solutions: Evaluate the technical hurdles of Tier 4 aftertreatment systems, such as shutdown inducements, and see how emerging ultra-low emission technologies enable extended grid support