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Amazon Signs $3 Billion Nuclear Power Deal With Constellation Energy

The agreement covers 690 megawatts from the Calvert Cliffs plant and funds 190 megawatts of new capacity.

2 publishers · 4 articles · first seen 30 Sept 2026 · updated 2h ago

The story so far

2 publishers have covered this in 4 articles since 30 Sept 2026. Bloomberg Technology published first, on 30 September at 20:04 UTC; Quartz followed 15h 26m later. The most recent article, from Bloomberg Technology, appeared on 1 October at 15:06 UTC.

Outlets reporting it: Bloomberg Technology (major outlet), Quartz.

2 prediction markets price this story:

  • Above 15 GWh of energy deployed in a single quarter — the market puts it at 66%, with $329 traded in the last 24 hours, closing 1 Apr 2027. The market resolves to Yes if Tesla deploys more than 15 GWh of energy products in any single quarter between Q1 2025 and Q1 2027. It resolves to No if the company fails to meet this threshold during that period. Readers often mistake the linked news story about the US Energy Department for the relevant data source, but only Tesla's deployment figures count.
  • Will Amazon be the largest company in the world by market cap on December 31? — the market puts it at 0%, with $1k traded in the last 24 hours, closing 1 Jan 2027. The outcome depends on which company holds the highest market capitalization at the end of the trading day on December 31, 2026. Readers often mistake the date of the linked news story for the resolution deadline or assume the deal itself changes the ranking immediately. The final determination relies on a consensus of credible reporting regarding the closing values on that specific date.

Odds are the market's probability that the outcome happens, updated every few minutes. They are information about what traders expect, not a forecast we make and not investment advice.

Markets on this story

  • Kalshi Above 15 GWh of energy deployed in a single quarter 66% +9 $329 24hends 1 Apr 2027

    Does the market have this right?

    Wrong market?

  • Polymarket Will Amazon be the largest company in the world by market cap on December 31? 0% $1k 24hends 1 Jan 2027

    Does the market have this right?

    Wrong market?

How the odds moved · Above 15 GWh of energy deployed in a single quarter
0%50%100%66%25 Sept, 12:57 UTCnowBloomberg Technology: McCormick Climbs on Sales; Constellation Energy Gains on Amazon Deal | Stock Movers · 1 Oct, 15:06 UTCBloomberg Technology: Amazon Nuclear Deal to Help Expand Constellation’s Maryland Site · 30 Sept, 20:04 UTCQuartz: Amazon unterzeichnete einen 20-jährigen Atomstromvertrag über 3 Milliarden Dollar mit Constellation Energy in Maryland. · 1 Oct, 11:40 UTCQuartz: Amazon signed a 20-year, $3 billion nuclear power deal with Constellation Energy in Maryland · 1 Oct, 11:30 UTC

Each tick is a source publishing on this story

Price data
TimeChance of yes
now66%
30 Sept, 23:06 UTC66%
30 Sept, 22:03 UTC65%
30 Sept, 18:46 UTC63%
28 Sept, 06:36 UTC57%
27 Sept, 21:15 UTC63%
25 Sept, 12:57 UTC56%

Your call. How does this end?

Free, no money involved. Calls are scored against the market's price when you make them, so backing an underdog that wins scores most. Leaderboard · Your calls

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How it unfolded

Every source in the order it published, with the odds on Above 15 GWh of energy deployed in a single quarter at that moment. A dash means the source published before we started tracking prices.

  1. Bloomberg TechnologyAmazon Nuclear Deal to Help Expand Constellation’s Maryland Site63%
  2. QuartzAmazon signed a 20-year, $3 billion nuclear power deal with Constellation Energy in Maryland66%▲3 points since the previous source
  3. QuartzAmazon unterzeichnete einen 20-jährigen Atomstromvertrag über 3 Milliarden Dollar mit Constellation Energy in Maryland.66%
  4. Bloomberg TechnologyMcCormick Climbs on Sales; Constellation Energy Gains on Amazon Deal | Stock Movers66%
  5. Current odds66%
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Sources

Every article we clustered into this story. Headlines link to the publisher.

  1. McCormick Climbs on Sales; Constellation Energy Gains on Amazon Deal | Stock Movers Bloomberg Technology ·
  2. Amazon Nuclear Deal to Help Expand Constellation’s Maryland Site Bloomberg Technology ·
  3. Amazon unterzeichnete einen 20-jährigen Atomstromvertrag über 3 Milliarden Dollar mit Constellation Energy in Maryland. Quartz
  4. Amazon signed a 20-year, $3 billion nuclear power deal with Constellation Energy in Maryland Quartz

In this story

  • Amazon
  • Constellation Energy
  • Calvert Cliffs Clean Energy Center

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