Constellation Energyvs.Talen Energy
CEG vs TLN · both in Utilities & power producers, part of the Energy, grid & critical infrastructure value chain: Electricity utilities and large power producers — from nuclear to renewable portfolios.
Constellation Energy is about 5.2× larger than Talen Energy by market cap; year to date, Talen Energy leads (+2.9% vs −28.8%).
Side by side
| CEG | TLN | |
|---|---|---|
| Market cap | $90.3B | $17.5B |
| Price | $251.38 | $385.80 |
| Today | +0.3% | +0.4% |
| Return YTD | −28.8% | +2.9% |
| Return 1Y | −19.8% | +44.2% |
| P/E | 23.8 | — |
| P/S | 3.0 | 5.3 |
| P/B | 2.7 | 16.3 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
Constellation EnergyCEG
The largest US nuclear power producer — delivering CO2-free baseload power, including via long-term agreements with data centres (Three Mile Island restart for Microsoft).
Full CEG profile →Talen EnergyTLN
Independent power producer with nuclear capacity that supplies data centers directly.
Full TLN profile →More comparisons in Utilities & power producers
See where CEG and TLN sit in the full Energy, grid & critical infrastructure map — every segment from suppliers to end markets.Open the Energy value chain →