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SMR vs. TLN: Betting on Nuclear Growth or Proven Earnings?
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Key Takeaways
NuScale is advancing SMR commercialization with NRC approval, suppliers and planned projects.
Talen raised 2026 EBITDA guidance and secured over 10 GW in PJM's 2028/2029 capacity auction.
NuScale faces project and dilution risks, while Talen carries $9.54 billion in long-term debt.
NuScale Power (SMR - Free Report) and Talen Energy (TLN - Free Report) are both positioned to benefit from rising U.S. electricity demand, but their investment stories are quite different. NuScale is working to commercialize small modular reactor technology, while Talen already operates a sizable power-generation fleet and is expanding its exposure to growing data-center demand. The comparison therefore comes down to long-term technology potential versus an established operating and cash-flow base.
The Case for SMR Stock
NuScale’s key strength lies in its early position in small modular nuclear technology. Its 77-megawatt (MW) module has secured U.S. Nuclear Regulatory Commission approval, while its use of conventional low-enriched uranium reduces dependence on the more constrained HALEU fuel supply required by some competing designs. The company has also created a network of more than 60 specialized suppliers and has agreements with over half of them. South Korean nuclear equipment manufacturer Doosan Enerbility has already been producing heavy forgings for NuScale modules, adding another layer of manufacturing readiness.
Commercially, the opportunity remains significant. NuScale’s strategic partner, ENTRA1 Energy, continues to work toward a definitive agreement with the Tennessee Valley Authority (“TVA”), while the RoPower development in Romania is planned around six NuScale modules. The company also finished the second quarter with roughly $1.9 billion in liquidity, giving it financial flexibility to continue funding engineering, fuel design and supply-chain preparation as it moves closer to deployment.
However, much of the NuScale investment story still rests on future project conversion. Second-quarter revenues were only about $0.1 million, following the completion of earlier RoPower engineering work, while NuScale recorded a $50.1 million net loss. Its Class A share count also increased considerably from year-end 2025, adding dilution concerns. Moreover, TVA discussions have not yet resulted in a definitive power purchase agreement, and progress in Romania remains dependent on project timing and customer decisions. That leaves NuScale with strong long-term potential, but also considerable execution risk.
The Case for TLN Stock
Talen offers a more established operating profile. The company owns about 15.7 gigawatt (GW) of U.S. power infrastructure, including nuclear and dispatchable fossil-generation assets, giving it direct exposure to strengthening electricity-market fundamentals. Its Cornerstone acquisition added approximately 2.6 GW of generation, while management is advancing around 4 GW of powered-land development and new-capacity opportunities aimed partly at supporting data-center customers.
Talen’s near-term outlook is easier to assess because it already generates strong cash flow. The company raised its 2026 adjusted EBITDA guidance to $2.025-$2.225 billion and its adjusted free cash flow forecast to $1.2-$1.35 billion. It also secured more than 10 GW of capacity in PJM’s 2028/2029 auction, meaning Talen will receive payments for keeping that power capacity available to the grid. This gives the company better visibility into future revenues. Talen also had about $1.9 billion of liquidity at the end of July, while $1.7 billion remained available for share buybacks through 2028.
Talen still faces several risks. Long-term debt totaled $9.54 billion at the end of June, making leverage and interest costs important factors to watch. Its performance is also sensitive to wholesale power prices, fuel costs, regulatory developments, plant availability and the successful integration of recently acquired assets. Still, its hedging program offers some stability, with roughly 85% of expected 2026 generation volumes hedged as of June 30.
Price Performance
Both stocks have struggled in 2026, though NuScale has seen the sharper decline. Talen Energy is down 18.8% year to date, compared with a 40.5% drop for SMR. The wider decline in NuScale reflects greater sensitivity to commercialization expectations, while Talen’s operating asset base and cash generation provide a more established foundation.
Image Source: Zacks Investment Research
Earnings Estimates
Earnings expectations also show a clear difference in financial maturity. The Zacks Consensus Estimate calls for NuScale to post a 2026 loss of 64 cents per share, representing a 70.5% improvement from 2025.
Image Source: Zacks Investment Research
For TLN, the consensus estimate of $21.16 per share implies 243% earnings growth over 2025. Thus, NuScale is expected to reduce losses, whereas Talen is projected to generate strong positive earnings growth.
Image Source: Zacks Investment Research
Conclusion
Both NuScale Power and Talen Energy currently carry a Zacks Rank #3 (Hold). SMR remains an interesting long-term nuclear story if its commercial projects move ahead as planned. However, TLN currently offers stronger operating scale, better earnings visibility, solid cash-flow prospects and exposure to favorable power-market trends. At this stage, Talen Energy still looks better placed than NuScale.
View the Zacks #1 Rank List
Image: Bigstock
SMR vs. TLN: Betting on Nuclear Growth or Proven Earnings?
Key Takeaways
NuScale Power (SMR - Free Report) and Talen Energy (TLN - Free Report) are both positioned to benefit from rising U.S. electricity demand, but their investment stories are quite different. NuScale is working to commercialize small modular reactor technology, while Talen already operates a sizable power-generation fleet and is expanding its exposure to growing data-center demand. The comparison therefore comes down to long-term technology potential versus an established operating and cash-flow base.
The Case for SMR Stock
NuScale’s key strength lies in its early position in small modular nuclear technology. Its 77-megawatt (MW) module has secured U.S. Nuclear Regulatory Commission approval, while its use of conventional low-enriched uranium reduces dependence on the more constrained HALEU fuel supply required by some competing designs. The company has also created a network of more than 60 specialized suppliers and has agreements with over half of them. South Korean nuclear equipment manufacturer Doosan Enerbility has already been producing heavy forgings for NuScale modules, adding another layer of manufacturing readiness.
Commercially, the opportunity remains significant. NuScale’s strategic partner, ENTRA1 Energy, continues to work toward a definitive agreement with the Tennessee Valley Authority (“TVA”), while the RoPower development in Romania is planned around six NuScale modules. The company also finished the second quarter with roughly $1.9 billion in liquidity, giving it financial flexibility to continue funding engineering, fuel design and supply-chain preparation as it moves closer to deployment.
However, much of the NuScale investment story still rests on future project conversion. Second-quarter revenues were only about $0.1 million, following the completion of earlier RoPower engineering work, while NuScale recorded a $50.1 million net loss. Its Class A share count also increased considerably from year-end 2025, adding dilution concerns. Moreover, TVA discussions have not yet resulted in a definitive power purchase agreement, and progress in Romania remains dependent on project timing and customer decisions. That leaves NuScale with strong long-term potential, but also considerable execution risk.
The Case for TLN Stock
Talen offers a more established operating profile. The company owns about 15.7 gigawatt (GW) of U.S. power infrastructure, including nuclear and dispatchable fossil-generation assets, giving it direct exposure to strengthening electricity-market fundamentals. Its Cornerstone acquisition added approximately 2.6 GW of generation, while management is advancing around 4 GW of powered-land development and new-capacity opportunities aimed partly at supporting data-center customers.
Talen’s near-term outlook is easier to assess because it already generates strong cash flow. The company raised its 2026 adjusted EBITDA guidance to $2.025-$2.225 billion and its adjusted free cash flow forecast to $1.2-$1.35 billion. It also secured more than 10 GW of capacity in PJM’s 2028/2029 auction, meaning Talen will receive payments for keeping that power capacity available to the grid. This gives the company better visibility into future revenues. Talen also had about $1.9 billion of liquidity at the end of July, while $1.7 billion remained available for share buybacks through 2028.
Talen still faces several risks. Long-term debt totaled $9.54 billion at the end of June, making leverage and interest costs important factors to watch. Its performance is also sensitive to wholesale power prices, fuel costs, regulatory developments, plant availability and the successful integration of recently acquired assets. Still, its hedging program offers some stability, with roughly 85% of expected 2026 generation volumes hedged as of June 30.
Price Performance
Both stocks have struggled in 2026, though NuScale has seen the sharper decline. Talen Energy is down 18.8% year to date, compared with a 40.5% drop for SMR. The wider decline in NuScale reflects greater sensitivity to commercialization expectations, while Talen’s operating asset base and cash generation provide a more established foundation.
Earnings Estimates
Earnings expectations also show a clear difference in financial maturity. The Zacks Consensus Estimate calls for NuScale to post a 2026 loss of 64 cents per share, representing a 70.5% improvement from 2025.
For TLN, the consensus estimate of $21.16 per share implies 243% earnings growth over 2025. Thus, NuScale is expected to reduce losses, whereas Talen is projected to generate strong positive earnings growth.
Conclusion
Both NuScale Power and Talen Energy currently carry a Zacks Rank #3 (Hold). SMR remains an interesting long-term nuclear story if its commercial projects move ahead as planned. However, TLN currently offers stronger operating scale, better earnings visibility, solid cash-flow prospects and exposure to favorable power-market trends. At this stage, Talen Energy still looks better placed than NuScale.
You can see the complete list of today’s Zacks #1 Rank stocks here.