← Infrastructure/Amazon Calvert Cliffs Data Center Campus (Calvert County, Maryland)

Amazon Calvert Cliffs Data Center Campus (Calvert County, Maryland)

C

Southern Maryland, US · US · Amazon Web Services (Amazon.com Inc.)

CancelledExplicit AI InfrastructureUnder Review

Environment

Water Stress
Not DisclosedND
Aquifer Stress
Not DisclosedND
Grid Carbon Intensity
Not DisclosedND
Drought Risk
Not DisclosedND

Facility

OperatorAmazon Web Services (Amazon Data Services); power supplied by Constellation Energy
CategoryExplicit AI Infrastructure
StatusCancelled
Capacity
500 MWC

Amazon Web Services filed an application on 2026-05-18 for a campus adjacent to the Calvert Cliffs Nuclear Power Plant, reported as up to 500 MW across several campuses. Amazon withdrew the plan in early August 2026 and said it decided 'not to move forward with the proposed site development in Calvert County at this time'.

Location
38.4000, -76.4400 · US
Campus AreaApproximate coordinates for the Calvert Cliffs nuclear plant area on the western shore of the Chesapeake Bay, Calvert County. Town-level location only; not site-surveyed. Reported acreage varies across sources (200 to 2,000 acres).
RegionSouthern Maryland, US
Research statusUnder Review

Evidence (2 sources)

Journalism2026-08-04

Project status as of 2026-10-26

Amazon abandons plans for data center campus at Md.'s Calvert Cliffs nuclear plant (search-result summary: county confirmed withdrawal in an August 4, 2026 release; application filed May 18).
Journalism2026-08-04

Project status as of 2026-10-26

Amazon abandons Calvert County data centers after community pushes back (search-result headline; content not opened).

Community

Community concerns on recordPlanning objections on record

Strong local opposition over environmental and health concerns; the issue became central in the 2026-06-23 primary, where three county commissioners who had voted against a data-center pause were ousted. Commissioners were set to vote on a moratorium (hearing 2026-08-18). Amazon says politics did not influence the decision; a resident noted it could resubmit. A separate developer (Natelli Holdings) has proposed another nearby data center.

Community flags document events recorded in public sources. They do not imply causal attribution or ongoing harm.

Researcher Notes

Added 2026-10-26 from online research; coordinates are town-level unless noted.