The prolonged closure of the Strait of Hormuz, a critical global oil shipping route, is prompting countries worldwide to reevaluate their energy strategies and prioritize domestic production amid rising costs and geopolitical risks. Governments and private sector actors are increasingly focused on exploiting local resources and technologies, even when initial investments are substantial.

In South America, Guyana, a rapidly expanding oil producer, encountered fuel shortages earlier this year and is now renewing efforts to establish its first oil refinery. President Mohamed Irfaan Ali emphasized the need to optimize regional resource development to enhance hemispheric energy security.

In Southeast Asia, Indonesia has accelerated plans to expand solar energy capacity. President Prabowo Subianto expressed hope that the country would eventually eliminate its reliance on imported fuels, thereby preserving foreign exchange reserves. This trend is mirrored in the Philippines, where high energy costs and disruptions following U.S.-Israeli strikes on Iran have spurred a surge in electric vehicle and solar panel imports, predominantly from China. Solaric, a Manila-based rooftop solar installer, reports doubling monthly installations since the conflict began, underscoring a shift toward self-generated electricity. Unlike fossil fuels, solar panels offer a durable local supply, mitigating dependence on external sources.

Meanwhile, many Asian nations have temporarily increased coal use to fill supply gaps. In Europe, efforts to reduce reliance on imported natural gas, particularly from Russia, have accelerated following Russia’s invasion of Ukraine and subsequent energy supply cuts. Belgium is negotiating to nationalize its remaining nuclear power plants as part of broader efforts to safeguard domestic energy production. Belgium’s Minister of Energy, Marnie Bihet, highlighted the necessity of minimizing dependence on any single supplier or region.

The current disruptions differ from earlier energy crises, notably in their focus on oil rather than natural gas. The Strait of Hormuz’s closure has curbed the global flow of oil vital for transportation, contrasting with the 2022 crisis’s emphasis on natural gas and electricity. The situation has propelled electric vehicle adoption globally; China exported a record $9.1 billion worth of electric and plug-in hybrid vehicles in April, a 50 percent increase year-over-year, with strong demand in Japan, Pakistan, and India. Europe also saw a 38 percent rise in battery electric car sales in April compared with the previous year.

Countries are also enhancing strategic fuel reserves to cushion future shocks. Wealthier nations are better positioned to undertake such costly stockpiling. Oil-exporting states are reconsidering infrastructure as well; Kuwait is exploring expanded storage capacity outside the Strait of Hormuz, while several Middle Eastern countries plan new pipelines to circumvent the chokepoint.

Despite the global interdependence resulting from the cost efficiencies of specialization and trade, the recent geopolitical turmoil has reinforced the advantage of having domestic energy buffers. Experts like Sarah Ladislaw, founding director of the New Energy Industrial Strategy Center, suggest that many countries will now seek a more diversified domestic energy mix and exercise greater caution in their international energy trade relationships. The extent of these shifts will depend in part on the prospects for a stable peace agreement between the United States and Iran, which could reopen the Strait of Hormuz and alleviate supply fears. Nonetheless, compared to past crises, the scale of supply disruptions and broader alternatives available today suggest that lessons from the current situation are likely to have a lasting impact on global energy policies.