In this picture obtained from Iran’s ISNA news agency on June 1, 2026, Iranians sit on Suru Beach in Bandar Abbas along the Strait of Hormuz.
Amirhossein Khorgooei | Afp | Getty Images
HELSINKI, Finland — Iran’s influence over the strategically vital Strait of Hormuz has inadvertently transformed the energy security debate, effectively casting fossil fuels rather than renewables as the primary source of vulnerability.
For decades, the conventional narrative has been one in which renewables were criticized for their intermittency issues and dependence on weather conditions, whereas technologies such as coal, oil, and gas were seen as providing security.
The Middle East conflict and protracted closure of the Strait of Hormuz, a waterway that typically handles around 20% of the world’s global oil and liquefied natural gas supplies, have reframed this debate, however, laying bare the risks associated with fragile fossil fuel supply chains.
Energy experts and the CEOs of Nordic energy giants Fortum and Statkraft made this point clear on the sidelines of the Eurelectric Power Summit in the Finnish capital this week.
“I mean, the big mantras, and I’m surprised we haven’t heard people talking about this yet, is that fossil fuels are now intermittent and uncertain, which, of course, was the argument levelled against renewables,” Kingsmill Bond, energy strategist at U.K.-based think tank Ember, told CNBC in Helsinki.
“Renewables, thanks to batteries, have become actually pretty constant given the sun rises every morning. So, look I think we have moved to a new environment and … we are still far too exposed to the old system – and we need to change, particularly in Europe, we need to change really quickly.”
Bond said the current energy shock marks the first time in history where policymakers have a superior alternative technology to turn to for security, comparing the situation today to the 1973 and 1979 oil crises.
“If you go back to the 1970s, what did we do? We built nuclear, but that took 10 years and it was expensive. This time round, we’ve got solar and wind, batteries and electrification and lots of flexible technologies, which are huge and cheap and we can scale them. And that’s what’s happening,” Bond said.
What about energy addition?
The U.S. and Israeli-led war against Iran has rattled global energy markets and triggered widespread inflation fears, with Asia’s reliance on imported energy sitting at the forefront of the global fossil fuel crisis.
Supply disruptions have also hit hard in Europe and Africa, where countries are responding to rising fuel costs and a considerable threat to food security. With no imminent reopening of the Strait of Hormuz in sight, the situation has prompted many to reflect on the extent to which the world remains deeply reliant on fossil fuel trade routes.
Asked about intermittency concerns regarding imported fossil fuels, Fortum CEO Markus Rauramo said, “It’s a different kind of intermittency but absolutely. So, exactly, this is our message that the solution to being dependent on imported CO2-content fuels is to actually have homegrown clean electricity.”
He added, “That’s the way forward, but then we are very realistic. We are not naïve about the fact that yes, there’s intermittency and if you have a business or your home is dependent on gas then it is a big shift.”
The evolving energy security debate comes just a few months after fossil fuel leaders had welcomed a paradigm shift in the narrative regarding the energy transition.
Speaking to CNBC at the UAE’s annual oil summit late last year, several fossil fuel industry players championed the concept of “energy addition” to secure supply and accommodate new demands from sectors like AI.
Energy addition refers to a push to develop new technologies, such as renewables like solar and wind, in parallel with existing fossil fuels. Energy transition, by contrast, typically refers to the transfer from one energy source to another.
Batteries and hydropower
Birgitte Ringstad Vartdal, the chief executive of Statkraft, Europe’s largest producer of renewable energy, agreed that the energy security narrative regarding clean technologies has been transformed by the conflicts in Ukraine and Iran.
“And I think also another thing that has been developing over this period is the batteries, right? So, they are much cheaper and they have longer duration for how long they can store,” Vartdal said.
Workers install rooftop solar panels on a house on May 13, 2026 in Ho Chi Minh City, Vietnam. Vietnam is expanding rooftop solar adoption as part of a broader push toward renewable energy and long-term energy security.
Thanh Hue | Getty Images News | Getty Images
Batteries are seen as a way to mitigate the intermittency of renewable energy projects by soaking up surplus electricity when generation is high and discharging it when production dips.
“For some countries, you can see that while in the past you had these shoulder hours in the morning and the evening, they can now much more be taken over by batteries. So, batteries plus solar or batteries plus solar and wind can provide a much more total generation as well.”
Shoulder hours refer to the blocks in the day that sit between peak energy demand and off-peak times.
The challenge of intermittency in Norway, which holds a reputation as the gold standard for renewable hydropower, has not been an issue in the same way it has for others in Europe, Vartdal said, before adding that “variability is key” in the security debate.
“In the end, we believe that you need some gas in the system to take the long periods of low production,” Vartdal said.
Europe’s pivot to U.S. LNG
While the Iran war may have moved the needle in the conventional energy security narrative, pivots to alternative energy sources during times of conflict can pose challenges. Some have raised the alarm about Europe’s rush to U.S. LNG following Russia’s full-scale invasion of Ukraine in early 2022.
The LNG tanker HL SEA EAGLE unloads liquefied natural gas from the Sabine Pass LNG terminal in the United States at the Revithoussa terminal near Athens, Greece, on March 28, 2026.
Nurphoto | Nurphoto | Getty Images
“Moving forward, we’re going to have a lot more LNG in Europe, and a lot of that LNG will now come from the U.S., given the Strait of Hormuz situation,” Jan Rosenow, professor of energy and climate policy at the U.K.’s University of Oxford, told CNBC.
“And that means we are then exposed to one country that is currently seen as rather unstable politically when it comes to international relations, so a very problematic situation indeed. And domestically generated electricity from renewables doesn’t face that problem.”
