Strait of Hormuz Shutdown:
The Fossil Fuel Wake-Up Call That Makes Renewables the Only Secure Path Forward
The ongoing war in Iran has starkly exposed the world's dangerous dependence on fragile fossil fuel chokepoints. Fighting has virtually halted oil exports through the Strait of Hormuz, the narrow waterway that normally carries about one-fifth of global oil and a significant share of liquefied natural gas (LNG). This disruption has sent energy markets into turmoil, driving up prices and putting severe pressure on import-dependent economies.
Asia, the primary destination for much of this oil, has been hit hardest, but the ripple effects are felt worldwide—including in Europe, where governments are scrambling to reduce energy demand, and in Africa, facing higher fuel costs and inflation risks.
What makes this moment different from past oil shocks is that renewables are now genuinely competitive. According to the International Renewable Energy Agency (IRENA), more than 90% of new renewable power projects worldwide in 2024 were cheaper than fossil-fuel alternatives. The conflict underscores the urgent need to accelerate the global shift to clean energy, reducing vulnerability to geopolitical flashpoints like the Strait of Hormuz.
For the Republic of Croatia, the future in renewables looks increasingly promising. Thanks to abundant natural advantages—high solar irradiation (one of the best in the EU), strong wind resources, established hydropower, and significant geothermal potential—the country is rapidly expanding its clean energy capacity.
In 2025, Croatia set new records: solar, wind, biomass, and biogas together generated over 5 TWh, surpassing other sources and covering 26.6% of electricity consumption. When including hydropower, renewables supplied more than 52.6% of electricity. Solar installations surged, reaching around 1.255 GW by late 2025, with projections for solar to overtake wind in installed capacity by early 2026.
Croatia's revised National Energy and Climate Plan targets a 42.5% share of renewables in gross final energy consumption by 2030 (with ambitions up to 65.6% by 2050), supported by massive untapped potential: up to 7 GW of solar and an estimated 25 GW in offshore wind. Ongoing regulatory improvements aim to unblock grid connections for large-scale projects, boost behind-the-meter solar and storage, and develop geothermal for baseload power.
By investing in these domestic, secure, and increasingly affordable sources, Croatia can enhance energy independence, shield itself from global fossil fuel volatility—like the current Hormuz crisis—and lead in Europe's green transition. The path is clear: renewables aren't just the future; they're the present and the smartest way forward.
Zeljko Serdar, Croatian Center of Renewable Energy Sources (CCRES)
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