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Calvert Technology Center

Lusby, Calvert County, MDDeveloper: Amazon (AWS)

CancelledCalvert County announced in August 2026 that Amazon Data Services had formally withdrawn its Calvert Technology Center Conceptual Site Development Plan application
  1. Rumored
  2. Proposed
  3. Approved
  4. Under construction
  5. Operating
Cancelled

Amazon Web Services proposed a data center campus, called the Calvert Technology Center in its county application, on the grounds of the Calvert Cliffs Nuclear Power Plant in Lusby, Maryland; Maryland Matters reported it covered 2.4 million square feet, and DatacenterDynamics reported it would have totaled around 500MW via a power agreement with Constellation Energy. The company submitted its proposal to Calvert County in early May 2026. On Aug. 4, 2026, Calvert County government announced that Amazon was abandoning the plans, and DatacenterDynamics reported that Amazon Data Services had formally withdrawn its Conceptual Site Development Plan application.

Planned capacity
500 MW
reported as 'around 500MW'

Key facts

Size & schedule

Planned capacity500 MW [2]
reported as 'around 500MW'
Source excerpt
“The campus would have reportedly totaled around 500MW, served via a power agreement with Constellation Energy.”
Floor area2.4 million sq ft [1]
Maryland Matters, citing a county planning document that described 'multiple data center campuses'; DatacenterDynamics reported more than 2.46 million sq ft over eight buildings, citing documents filed with the county
Source excerpt
“covering 2.4 million square feet, according to a planning document published on the Calvert County government website”
Buildings8 [2]
DatacenterDynamics, citing documents filed with the county; WJLA reported plans for three data centers
Source excerpt
“Documents filed with the county suggest more than 2.46 million sq ft (228,540 sqm) of data center space could have been developed over eight buildings.”

How big is that? Data center sizes compared with football fields and Central Park.

Power

Power supplyPower agreement with Constellation Energy (reported) [2]
Source excerpt
“The campus would have reportedly totaled around 500MW, served via a power agreement with Constellation Energy.”

Local decisions & site

Parcel / address1650 Calvert Cliffs Parkway, Lusby (Calvert Cliffs Nuclear Power Plant) [2]
address as reported by DatacenterDynamics
Source excerpt
“near the Calvert Cliffs Nuclear Power Plant at 1650 Calvert Cliffs Parkway in Lusby, Calvert County”

Figures are as stated by the cited source. Where sources disagree, each figure is shown.

Timeline

  1. Residents first learn of plans for data centers on part of the Calvert Cliffs property in Lusby, according to WJLA [3]

  2. Amazon reveals it may develop a data center close to the Calvert Cliffs Nuclear Power Plant, according to DatacenterDynamics [2]

  3. Amazon submits its proposal to Calvert County [1]

  4. Calvert County primary election, in which voters push back against hyperscale data centers [1]

  5. Calvert County government issues a news release saying Amazon Web Services is abandoning its plans for data centers on the Calvert Cliffs Nuclear Power Plant campus [1]

Issues raised

  • The three county commissioners who had voted against a pause on data centers lost their June 2026 primaries [1][3]
  • Amazon said it decided not to move forward after careful evaluation of factors including development timelines and operational requirements; it said the decision was driven by business considerations and that politics did not influence it [1][2][3]
  • Residents raised concerns about environmental impacts, including on the Chesapeake Bay and Patuxent River; commissioner-nominee Patti Stueckler said the project would have destroyed 'a thousand acres of forest' [3]
  • Maryland Matters reported the county would hold a public meeting on Aug. 18, 2026 to consider a temporary six-month moratorium on site plan approvals for data center development projects [1][3]
  • Local press reported the county had been in discussions with Rowan Digital Infrastructure about the project, according to DatacenterDynamics [2]
  • Reported size differs by source: 2.4 million sq ft in 'multiple data center campuses' [1], more than 2.46 million sq ft over eight buildings [2], and three data centers [3]

Issues are concerns and claims raised by the parties, officials or residents named in the cited sources. They are reported as attributed, not as findings by the Census.

Sources

  1. Amazon abandons plans for data center campus at Calvert Cliffs
    Maryland Matters · Aug 4, 2026 · news
  2. AWS pulls out of planned data center campus next to Maryland nuclear plant
    DatacenterDynamics · Aug 5, 2026 · news
  3. Amazon abandons Calvert County data centers after community pushes back
    WJLA (7News) · Aug 13, 2026 · news

Cite this page

Last updated Sep 24, 2026. Figures may change as records are updated — include the date you retrieved them.

APAData Center Census. (2026). Calvert Technology Center. Retrieved from https://datacentercensus.com/dc/aws-calvert-cliffs-lusby-md
MLA“Calvert Technology Center.” Data Center Census, Sep 24, 2026, https://datacentercensus.com/dc/aws-calvert-cliffs-lusby-md.
Linkhttps://datacentercensus.com/dc/aws-calvert-cliffs-lusby-md

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