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,
Quick Facts
| Field | Value |
|---|
| Project Name | Amazon AWS - Calvert County Campus |
| Location | Calvert Cliffs Nuclear Power Plant, Lusby, MD |
| Status | Active / Under Evaluation & Site Feasibility Review (Confirmed May 2026) |
| Commissioning | Phased site infrastructure and power delivery loops targeted for 2029 through 2034 |
| Total IT Load | ~1.1 GW to 1.3 GW net critical computing capacity |
| Total Capacity | 1.5 Gigawatts (1,500 MW) gross master-planned infrastructure power envelope |
| Tier Level | Tier III Compliant concurrently maintainable infrastructure |
| Project Type | Greenfield Nuclear-Backed Hyperscale AI Training & Core Cloud Campus |
City Profile
| Header | Details |
|---|
| City Name | Lusby |
| Population | ~2,400 |
| Urban Agglomeration | ~93,000 (Calvert County and surrounding regional influence area) |
| City GDP | ~$150–250 million USD (estimated local economic output) |
| Per Capita Income | ~$45,000–$55,000 USD |
| City Tier | Tier 4 – Emerging Energy & Infrastructure Community |
| Key Strengths | Proximity to Calvert Cliffs Nuclear Power Plant |
Companies Involved
| Header | Details |
|---|
| Developer / Operator | Amazon Web Services |
| Strategic Infrastructure Partner | Regional Clean Energy Generation & Utility Asset Owners |
| Construction Contractor | To Be Announced (Bidding active for tier-1 national mission-critical EPC firms) |
| MEP Engineering | AWS Infrastructure Global Design & Mechanical Systems Team |
| Network Connectivity | Multiple physically isolated, low-latency dark fiber paths connecting directly to the Northern Virginia connectivity matrix |
| Power Infrastructure | Direct Co-located Generation Connection (Calvert Cliffs Nuclear Asset Infrastructure) |
Technical Specifications
| Header | Details |
|---|
| Power Capacity | 1,500 MW gross generation capacity delivered via direct high-voltage substation switchyards |
| UPS Redundancy | Distributed block redundant configurations integrated with heavy-duty lithium-ion battery energy storage systems (BESS) |
| Cooling System | Closed-loop hybrid liquid-to-air cooling platforms built to accept direct-to-chip waterless heat rejection systems |
| Connectivity | 4 physically isolated, concrete-reinforced subsurface carrier entry vaults with absolute path diversity |
| PUE Target | $\le 1.14$ annual average operating under sustained high-density AI computational workloads |
| Energy Mix | 100% carbon-free baseload energy sourced directly via dedicated nuclear generation transmission lines |
Milestones
| Header | Details |
|---|
| Announcement | Site evaluation tracks and feasibility metrics verified May 5, 2026 |
| Construction Start | Targeted for early Q3 2027 (Pending successful zoning execution, environmental reviews, and final utility contracting) |
| Phase 1 Go-Live | Projected H2 2029 (Initial operational computing block delivery and baseline validation testing) |
| Full Buildout | Long-term sequential multi-facility site scaling continuously through 2034 |
Investment Details
| Header | Details |
|---|
| Total Investment | $11.0 Billion USD estimated total multi-phase infrastructure and site capitalization profile |
| Funding | Direct corporate capital allocation, structured private green infrastructure funds, and long-term asset credit lines |