The head of the International Energy Agency has a stark assessment of where the world stands: this is the largest energy security crisis humanity has ever faced. The Strait of Hormuz is closed, financial markets are rattled, and investment decisions are stalling as uncertainty spreads through the global energy system.
But beneath the turbulence, something larger may already be in motion.
A crisis unlike any before
IEA executive director Fatih Birol hasn’t minced words. Speaking alongside the agency’s 2026 World Energy Investment report, he described the current situation as “the largest energy security crisis the world has ever faced” — and drew a direct line to the oil shocks of the 1970s, a period that fundamentally rewired how nations produce, trade, and consume energy.
The parallel is instructive. The 1970s crises didn’t just inflict short-term pain — they triggered a generational rethinking of energy systems. Countries that had built their economies around cheap, abundant oil were forced to confront deep structural vulnerabilities, and the result was a decades-long push toward diversification, efficiency, and new supply sources.
Birol suggests something similar is already underway. Both producer and consumer nations are intensifying efforts to diversify trade routes and energy sources — advancing new pipelines and supply infrastructure on one side, turning toward domestically available resources on the other. The closure of the Strait of Hormuz hasn’t merely disrupted supply. It’s forced a strategic reassessment across the board.
Where the $3.4 trillion is going
Global energy investment is forecast to rise roughly 5% in 2026, reaching a total of $3.4 trillion. That headline number matters, but the composition matters even more.
Of that total, $2.2 trillion is directed toward clean energy categories: grids, storage, low-emissions fuels, nuclear, renewables, efficiency, and electrification. The remaining $1.2 trillion continues to flow into oil, coal, and gas. Clean energy now commands a clear majority of global investment — not a narrow edge, but a structural lead.
Within the clean energy category, solar PV alone is expected to attract $365 billion in 2026 — more than $1 billion every single day. The broader renewables category is set to receive $665 billion total, with solar accounting for well over half.
The IEA attributes part of this momentum to a shift in how investors perceive risk. Changing perceptions of reliability are spurring renewed interest in domestically available resources — renewables and nuclear alongside fossil fuels — as energy security concerns move from background consideration to front-line priority.
Electrification takes center stage
If one trend defines the current investment landscape, it’s electrification. Electricity-related spending now accounts for roughly 60% of all global energy investment, a share that reflects both the scale of the transition underway and the infrastructure required to support it.
Electricity supply and infrastructure spending is set to reach $1.6 trillion in 2026. When end-use investment is included, that figure climbs to $2 trillion. Grid spending alone is projected to jump 20%, hitting $550 billion, and battery storage investment will reach $100 billion — a figure that would have seemed unlikely just a decade ago.
The demand side reinforces the supply-side push. BloombergNEF projects that electricity will cover two-thirds of all new energy demand between now and 2050. Data centers are expanding rapidly across the US and China, electric vehicles are scaling through major markets, and electrification is moving steadily through industrial and commercial sectors. The infrastructure being built today is laying the foundation for that future.
Gas makes a comeback — but clean energy still leads
The crisis hasn’t produced a clean, linear shift toward renewables. Natural gas is also benefiting from the current moment — orders for new gas-fired power plants reached a 25-year high in 2025, driven by energy security concerns and surging demand from data centers that require reliable, dispatchable power around the clock.
Renewable investment, meanwhile, is expected to remain roughly flat in 2026 after years of rapid expansion. In mature markets like Europe, grid infrastructure built around earlier renewable deployments can’t easily absorb another surge. Investment is being redirected toward grids, flexibility, and storage — the connective tissue that makes large-scale renewables viable.
Despite the gas uptick, the overall picture holds. Low-carbon energy still represents around 70% of global energy investment, and in some less-developed markets hit hard by the crisis, the disruption is actually accelerating renewable deployments rather than slowing them.
The full impact is still coming
One of the more sobering findings in the IEA’s report is how little of the crisis has actually registered in investment data yet. Nearly three-quarters of 2026 investment decisions were made before the current crisis began. The numbers visible today largely reflect strategies formed in a different environment.
Financial market volatility is already slowing short-term decisions and pushing up long-term financing costs. Supply chains — stretched by earlier demand surges — can take years to recover from major shocks. The situation in the Middle East could still escalate in ways that reshape the calculus further.
What comes next will depend on how long the disruption lasts, how financial conditions evolve, and whether governments move to accelerate policy support for domestic energy sources. The IEA’s own framing offers a cautious form of optimism: if this crisis prompts a faster pace of electrification, it may bring what the agency calls the “Age of Electricity” into sharper focus sooner than previously anticipated. The 1970s oil shocks took years to fully reshape energy systems. This time, the direction of travel may already be clearer — and the pace considerably faster.
Carlos is an engineer with strong expertise in technical and industrial topics. He previously worked at international companies such as Siemens and speaks Spanish, German, English, and Italian.
