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Constellation Energy10-K: Legacy modernization

Restarting Crane Clean Energy Center with $1B DOE loan guarantee and 20-year Microsoft PPA.

What happened

This is a major capital project to restart a retired nuclear plant, requiring significant investment in regulatory approvals, construction, and technology upgrades. The project is backed by a $1 billion DOE loan guarantee and a long-term power purchase agreement with Microsoft, indicating a strong budget and commitment to modernizing the asset for clean energy production.

Source

SEC EDGARFeb 24, 2026

Annual report (Form 10-K)

Constellation Energy 10-K for FY2025

Filing excerpt

In September 2024, we executed a 20-year PPA with Microsoft that will support the restart of Three Mile Island Unit 1, renamed as the Crane Clean Energy Center, which was retired in 2019 for economic reasons.

sec.gov/Archives/edgar/data/1168165/000186827526000032/ceg-20251231.htmRead the full source

Other signals in this filing (11)

Extracted by Autobound

From the Signal API record
Signal
10-K: Legacy modernization

What this signalsFilings often name leadership changes, deals and spending plans.

Period
FY2025
Fiscal year end
12/31
Filed
Feb 24, 2026

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The full record

From the Signal API record

Numbers

Dollar figure
$1B (DOE loan guarantee to support the restart of the Crane Clean Energy Center)

Details

CIK
1168165
Accession number
0001868275-26-000032
Timeframe
Multi year
Filing year
2026
Why it matters
Modernization projects
Signal category
Technology

Topics and mentions

Technologies

  • nuclear

Vendors

  • Microsoft

Regions named

  • PJM

Extraction

Confidence
High
Relevance
90%
Sentiment
Positive
Detected
Mar 3, 2026
signal_type
sec-10k
signal_subtype
legacyModernization

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This page shows a preview. The full sec-10k record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/26810753-b323-4ee4-a7bb-f5bf16a82ec6 returns this record as JSON. POST /v1/companies/enrich returns every signal for constellationenergy.com.

{
  "signal_id": "26810753-b323-4ee4-a7bb-f5bf16a82ec6",
  "signal_type": "sec-10k",
  "signal_subtype": "legacyModernization",
  "detected_at": "2026-03-03T05:50:58.314+00:00",
  "company": {
    "name": "Constellation Energy",
    "domain": "constellationenergy.com"
  },
  "data": {
    "detail": "This is a major capital project to restart a retired nuclear plant, requiring significant investment in regulatory approvals, construction, and technology upgrades. The project is backed by a $1 billion DOE loan guarantee and a long-term power purchase agreement with Microsoft, indicating a strong budget and commitment to modernizing the asset for clean energy production.",
    "metrics": {
      "timeframe": "multi_year",
      "dollar_context": "DOE loan guarantee to support the restart of the Crane Clean Energy Center",
      "dollar_millions": 1000
    },
    "summary": "Restarting Crane Clean Energy Center with $1B DOE loan guarantee and 20-year Microsoft PPA.",
    "excerpts": "In September 2024, we executed a 20-year PPA with Microsoft that will support the restart of Three Mile Island Unit 1, renamed as the Crane Clean Energy Center, which was retired in 2019 for economic reasons.",
    "relevance": 0.9,
    "sentiment": "positive",
    "confidence": "high",
    "source_url": "https://www.sec.gov/Archives/edgar/data/1168165/000186827526000032/ceg-20251231.htm",
    "filing_date": "2026-02-24",
    "filing_year": 2026,
    "fiscal_year_end": "12/31",
    "sales_relevance": "Modernization projects",
    "signal_category": "technology",
    "regions_mentioned": [
      "PJM"
    ],
    "vendors_mentioned": [
      "Microsoft"
    ],
    "technologies_mentioned": [
      "nuclear"
    ]
  }
}

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