IRENA Puts $5.5 Trillion Price Tag on Global Grid Build-Out to 2030
The agency says grid and flexibility investment must run well above current levels to meet accelerating electricity demand from AI, EVs and industrial electrification.
The world must mobilise USD 5.5 trillion in grid and flexibility investment between now and 2030, the International Renewable Energy Agency said on Tuesday (2026-06-23), framing the build-out as one of the largest infrastructure transformations in modern history. The figure sets a hard benchmark against which current capital commitments look thin.7
That gap has direct implications for power markets. The IEA estimates annual grid spending needs to rise roughly 50% from its current $400 billion pace to meet demand growth through the end of the decade.4 IRENA's number, applied over four years, implies an annual run rate above $900 billion — well beyond even the upgraded IEA target, suggesting the agencies are measuring different scopes of what grid and flexibility investment encompasses.
Demand is driving the urgency. The IEA projects global electricity consumption will grow at an average 3.6% annually between 2026 and 2030, propelled by industrial electrification, electric vehicles, air conditioning and data centres. AI infrastructure alone is expected to account for as much as 4% of global electricity use by 2030, according to the agency.3,4
European grid operators have already begun spending at a scale that would have seemed implausible five years ago. TenneT, the principal transmission system operator for Germany and the Netherlands, has committed €200 billion through 2034. France's RTE is targeting €100 billion between 2025 and 2040. Italy's Terna has earmarked €18 billion for the 2024-28 period. ENTSO-E, the pan-European TSO body, estimates the total cost of meeting the EU's electrification goals by 2050 at €800 billion.5
Execution is already straining the system. Germany alone has accumulated 350 gigawatts' worth of connection applications — more than its entire installed capacity — as developers queue for grid access the physical infrastructure cannot yet supply.5
Southeast Asia faces a sharper version of the same problem. Power demand from data centres, electric vehicles and green industrial parks is forecast to grow by more than 100 terawatt-hours in the next three to four years, according to a 2026 Green Economy Report by Bain & Company and Standard Chartered. Meeting that growth requires more than $200 billion in investment, more than half of which will flow to data centres. A separate analysis estimates the region faces an annual grid investment shortfall of $18 billion by 2035.1,2
IRENA's framing reaches beyond infrastructure finance. The agency argues that accelerating electrification would allow governments to reduce fossil fuel subsidies, which the IMF estimates at roughly 7% of global GDP through 2035 — equivalent to trillions of dollars annually. Over 90% of new renewable capacity now generates electricity at lower cost than the cheapest new fossil fuel alternative, IRENA noted, sharpening the economic logic for redirecting that subsidy spend toward grids.7
For the transition to remain on a 1.5°C-compatible path, IRENA says electrification must account for 35% of global total final energy consumption by 2035. Current electrification sits around 23% of global energy use.7,6
The harder constraint is not capital alone. Mobilising $900 billion-plus per year in grid investment requires permits, equipment and skilled labour at a pace the industry has not demonstrated. Transmission projects in Europe regularly take a decade or more from approval to energisation. The $5.5 trillion figure identifies the financing need; whether physical execution can match it by 2030 remains the open variable for investors and policymakers alike.5