Why the Grid Spending Surge Is Just Getting Started

PwC forecasts $151 trillion in global infrastructure spend by 2050, with power storage investment set to nearly quadruple current levels

30 Apr 2026

The numbers are staggering, but the timing is the real story. A landmark PwC study released April 28 projects cumulative global infrastructure spending will hit $151.1 trillion through 2050, double real-terms investment from the past two decades. For the US smart grid and energy storage industry, the implication is immediate: the largest capital cycle in recorded history has arrived, and it's pointed squarely at grid modernization.

Power infrastructure sits at the center of this expansion. Annual global spending on power is expected to climb from $631 billion in 2024 to $1.1 trillion by 2050, a cumulative total of $25 trillion. Energy storage leads all categories in growth rate. Annual investment is projected to reach nearly $91 billion by 2050, roughly 3.7 times today's levels, while transmission and distribution spending is set to reach $472 billion annually, up 2.6 times over the same period.

Three forces are converging to drive this. AI data centers are placing extraordinary new demand on electricity networks. The electrification of transport, heating, and industry is loading systems designed for a different era. And governments across North America are investing in regionally resilient energy supply chains with a new sense of urgency.

Domestic data reinforces the global signal. US battery energy storage installations set a record 18.9 GW in 2025, a 52% year-on-year increase, per the American Clean Power Association and Wood Mackenzie. Texas alone is expected to add 12.9 GW of new storage capacity in 2026, confirming that grid investment has spread well beyond its coastal origins.

Capital commitments, though, are only half the equation. PwC cautions that fragmented planning, supply chain bottlenecks, and outdated contracting models are genuine execution risks. The report calls for system-level coordination, blended-finance platforms, and AI-enabled project tools to convert pledges into physical capacity. For North America specifically, PwC frames the period ahead as a renewal cycle, with aging transmission corridors and substations demanding large-scale modernization. The next era of the US smart grid isn't approaching. It's here.