Amazon AWS - Calvert County Campus

Status: Active / Under Evaluation & Site Feasibility Review (Confirmed May 2026)   |   Location: Calvert Cliffs Nuclear Power Plant, Lusby, MD

Project Overview

Emerging into active site evaluations and structural feasibility reviews in May 2026, the AWS Calvert Cliffs Campus represents Amazon’s latest aggressive play to secure large, uninterruptible blocks of zero-carbon baseload power. Mirroring the industry's shift toward direct nuclear utility integration, the massive 1.5 gigawatt development is designed to tap into the adjacent nuclear generation assets. This behind-the-meter colocation strategy is custom-tailored to circumvent severe PJM interconnection grid queues and transmission line bottlenecks currently delaying traditional mid-Atlantic builds. The massive project is intentionally engineered to accommodate extreme high-density processing racks running intensive large language models (LLMs) and advanced machine learning workloads. By aligning hyperscale infrastructure directly with a nuclear power source, Amazon aims to secure long-term energy reliability while simultaneously reducing exposure to volatile wholesale electricity markets and increasing pressure on regional transmission systems. Industry analysts view the proposed campus as part of a rapidly expanding trend in which major cloud providers seek dedicated energy ecosystems capable of sustaining the unprecedented computational requirements of generative AI and next-generation cloud services. The Calvert Cliffs initiative is expected to feature advanced cooling systems, highly redundant electrical architecture, and modular deployment capabilities optimized for GPU-heavy environments demanding continuous uptime and scalable expansion capacity. Its strategic positioning within the Mid-Atlantic region also enables lower latency connectivity to key enterprise, government, and population centers along the East Coast while avoiding some of the saturation challenges facing Northern Virginia’s data center market. In addition to its technological ambitions,

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