Data Centers in Virginia: A Hidden Health Cost

The Epicenter of Digital Infrastructure

Virginia hosts the world’s largest cluster of data centers, known locally as “Data Center Alley.” The region’s growth is fueled by:

• Proximity to Washington, D.C.
• Affordable land
• Long‑standing tax incentives

Today, the bulk of these facilities sit in Loudoun, Prince William, and Fairfax counties, with a projected footprint that could double in the coming years.

Energy Demands & Air Quality

• Total power consumption: ~5,050 MW—enough to light half of Virginia’s homes.
• Electricity mix: 54 % natural gas, 4 % coal.
• Combustion releases pollutants that:
• Harm lungs, hearts, and brains
• Increase risks of ADHD, autism in children; Parkinson’s, Alzheimer’s in older adults

Data centers import significant coal‑heavy power from neighboring states, contributing to cross‑border air pollution. Backup diesel generators—over 4,000 units—run thousands of hours yearly, emitting chemicals linked to respiratory and neurological problems.

Water Use & Environmental Impact

• 2023 water draw: ~2 billion gallons, a 63 % rise since 2019.
• The strain on rivers and groundwater is critical amid frequent dry years.
• Cooling water discharge can spread bacteria, causing:
• Stomach illnesses
• Skin rashes
• Adverse birth outcomes

Noise & Community Health

• Continuous hum from cooling fans near homes and schools:
• Disturbs sleep
• Raises heart rates
• Impairs children’s learning
• Rising electricity demand escalates energy bills, disproportionately affecting low‑income families.

Mitigation Strategies

1. Renewable Power Mandate – Require data centers to source electricity from clean energy.
2. Water Management – Impose strict limits during droughts and promote closed‑loop cooling systems.
3. Noise Reduction – Enforce design standards that dampen fan noise and buffer residential areas.
4. Site Selection – Prioritize already industrial land to minimize new environmental disruption.
5. True Cost Pricing – Utilities should charge for the actual grid load, preserving fair household rates.
6. Public Health Advocacy – Disseminate evidence to voters and lawmakers for informed policy decisions.

The Bottom Line

Virginia is poised to remain a global data center hub, but residents and leaders must weigh the health, environmental, and economic consequences. The debate transcends technology—it centers on clean air, safe water, quiet neighborhoods, and affordable energy.