---
id: "entity-constellation-energy"
type: "entity"
entityType: "organization"
canonicalName: "Constellation Energy"
aliases: ["Constellation", "Constellation Energy"]
source_timestamps: ["§ The Incumbent's Energy Playbook", "¶13"]
tags: ["energy-providers", "nuclear"]
related: ["entity-microsoft", "entity-three-mile-island"]
sources: ["futures"]
sourceVaultSlug: "hbr-seg-futures"
originDay: 2
articleStem: "hbr-nm-101-energy-strategy-ai"
sourceUrl: "https://hbr.org/2026/06/your-company-needs-an-energy-strategy-for-ais-next-phase"
sourceTitle: "Your Company Needs an Energy Strategy for AI’s Next Phase"
---
# Constellation Energy

## Profile
A U.S. energy company (canonical: constellationenergy.com).

## Role in the source
Signed a **20-year power-purchase agreement** with [[entity-microsoft-d2]] to restart [[entity-three-mile-island]] (Unit 1) as the Crane Clean Energy Center — a defining data point for [[claim-hyperscalers-moving-upstream]].