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Bill

HB 507

Data centers; permit requirements, emission limits for certain engine-generator sets.

2026 Regular Session Introduced by Shelly Simonds and 2 co-sponsors

Virginia bill establishes air emissions monitoring and carbon dioxide standards for data center backup generators to balance tech industry growth with environmental protection.

Fiscal Impact Statement from Department of Planning and Budget (HB507)
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Bill Summary · HB 507

Legislative bill overview

HB 507 addresses environmental regulation of backup power generators at data centers in Virginia, specifically targeting carbon dioxide emissions. The bill likely establishes air quality monitoring requirements and/or emissions standards for diesel or natural gas-powered generators used to provide backup power during outages at data center facilities.

Why is this important

Data centers consume significant energy and typically rely on fossil fuel backup generators for operational continuity. As Virginia seeks to expand its tech industry and data center footprint—particularly in Northern Virginia—this bill reflects tension between economic growth and air quality/climate goals. The outcome could affect both the feasibility of new data center projects and regional air pollution levels.

Potential points of contention

  • Economic competitiveness: Stricter emissions regulations on backup generators could increase data center operating costs and make Virginia less attractive to tech companies compared to states with lighter environmental requirements
  • Enforcement and monitoring costs: Requiring continuous or frequent air quality monitoring near data centers creates administrative and financial burdens on facility operators
  • Technological feasibility: The bill may mandate emissions reduction levels that currently lack cost-effective technological solutions, forcing expensive retrofits or facility relocations
  • Scope ambiguity: Unclear whether standards apply only to new facilities, existing ones, or both; retroactive requirements could face industry pushback

Compiled from official sources — confirm details with the bill’s official record.

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