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Portugal says entry into grid operator REN won't affect China's State Grid

Published by Global Banking & Finance Review

Posted on September 23, 2026

2 min read

· Last updated: September 23, 2026

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Portugal Reaffirms State Grid's Key Shareholder Role in REN Stake Deal

Portugal's Government Stake in REN and Its Implications

By Sergio Goncalves

Background: State Grid's Investment in REN

LISBON, Sept 23 (Reuters) - Portugal's government said its acquisition of a stake in power and gas grid operator REN would have no implications for the 25% stake held by China's State Grid, which it wants to remain a key shareholder.

The state agreed last month to buy 13.7% of REN, returning to the company 12 years after exiting during Portugal's bailout, a period that saw the Chinese state-owned utility acquire a 25% stake and become its largest shareholder.

The Portuguese government plans to increase its holding to as much as 20%.

Official Statement on State Grid's Role

The Finance Ministry said in a statement late on Tuesday that Lisbon had informed Beijing that the state's entry into REN's capital would not imply any change to State Grid's 25% stake.

"On the contrary, it is in the Portuguese government's interest for State Grid to remain a reference shareholder in REN," it said.

Strategic Importance of Energy Infrastructure

The ministry said growing geopolitical uncertainty and the increasing strategic importance of energy infrastructure justified its investment in REN, arguing that electricity and gas networks are critical to energy security, the energy transition, industrial development and attracting investment.

Global and European Context

It said the move "forms part of a global trend towards greater government involvement in strategic sectors", noting that Portugal had been the only European Union member state without a state stake in its national electricity grid operator.

The ministry said most EU countries retain state ownership or significant state shareholdings in their national electricity grid operators.

National Priorities and Future Strategy

It said the investment would give the state greater oversight of a strategic asset and help align REN's long-term strategy with national priorities.

"Geopolitical changes and the growing importance of energy, and electricity in particular, especially in the push to electrify the economy and attract investment in artificial intelligence and data centres, also justify the decision," it said.

(Reporting by Sergio Goncalves; Editing by Stephen Coates)

Key Takeaways

  • Portugal has acquired 13.7% of REN—potentially raising to 20%—marking its return as a shareholder after a 12‑year absence; China’s State Grid retains its 25% stake. (portugal.gov.pt)
  • The government assures Beijing that the operation will not affect State Grid’s position, affirming its interest in keeping the Chinese firm as a reference shareholder. (portugal.gov.pt)
  • This investment responds to growing geopolitical tension and reflects a broader EU trend: Portugal was previously the only EU country without state participation in its national grid operator, whereas most retain full or partial public ownership. (portugal.gov.pt)

References

Frequently Asked Questions

Will Portugal's acquisition of a REN stake impact China’s State Grid’s share?
No, the Portuguese government confirmed that its new stake in REN will not affect China’s State Grid's 25% holding.
Why is Portugal increasing its stake in REN?
Portugal is increasing its stake due to geopolitical uncertainty, energy security needs, and the strategic importance of energy infrastructure.
How much of REN is Portugal planning to own?
Portugal agreed to purchase 13.7% of REN and aims to increase its holding to as much as 20%.
Does the state want China’s State Grid to remain a key shareholder in REN?
Yes, the Portuguese government wants State Grid to remain a reference shareholder in REN.
Why is state involvement in REN seen as important by Portugal?
It allows for better oversight of a strategic asset and helps align REN's long-term strategy with national priorities.

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