Wednesday, October 21, 2026

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Constellation invests $4.3 billion to uprate 11 reactors

October 9, 2026, 8:40 am   Source: Google and Constellation Energy joint announcement

Google and Constellation Energy announced a long-term strategic clean energy collaboration involving uprates to 11 of Constellation’s megawatt-class nuclear reactors. The agreement includes $4.3 billion in new investment by Constellation over a 20-year duration.

What it means

The project will add 890 MW of new nuclear capacity to the PJM Interconnection grid. This expansion increases the available power supply within the regional electricity market served by the interconnection.

Key facts

  • $4.3 billion in new investment by Constellation
  • 11 megawatt-class nuclear reactors undergoing uprates
  • 890 MW of new nuclear capacity added to PJM Interconnection
  • 20-year duration for the collaboration

Source: Google and Constellation Energy joint announcement

Read the full story at Google and Constellation Energy joint announcement