Global infrastructure spending is projected to surpass $150 trillion through 2050, as countries modernise systems to meet growing AI and electrification demands. Annual spending is forecast to climb from $4.4 trillion (£3.2 trillion) in 2024 to $6.9 trillion in 2050, ultimately driving investment of $151.1 trillion, according to PwC.
The growth represents a roughly 57 per cent increase in yearly spending over the period, driven by the need to update transport, power and industrial systems for AI, electrification and urbanisation. In real terms, spending will double that of the past 20 years.
Transport and Power Lead Investment
Transport and power will remain the biggest areas for investment, accounting for about half of infrastructure spending to 2050. Annual transport spending will rise from $1.4 trillion to $2.4 trillion, while power infrastructure spending jumps from $631bn to $1.1 trillion. Geopolitical risks will boost defence as the fastest-growing sector, with annual spending on physical installations more than doubling to $168bn by 2050. Water, social, digital and agricultural infrastructure will also grow.
Data Centre Boom
The AI race is causing a surge in data centre spending. Between 2024 and 2027, annual investment in data centres will rise from $113.8bn to $251.8bn, then escalate to $1.5 trillion by 2032. An aging population will also trigger higher health and social care spending, reaching $441bn by 2050.
Growth Markets Drive Activity
Emerging and growth markets will continue as the engine of global infrastructure activity. The Asia-Pacific region will account for over half of total investment through 2050, expanding urbanisation and industrial capabilities. Africa will see the world's fastest infrastructure investment rate, nearly doubling, as it fills significant gaps. Europe and North America will undergo renewal to fix aging transport, water and energy systems. Annual spending is forecast to rise 1.6 times by 2050 in the US and 1.4 times in Europe.
Clara Cutajar, global infrastructure leader at PwC Australia, said: "This is not a traditional construction cycle. This next generation of infrastructure will be intelligent, connected and adaptable. Systems will need to anticipate demand, allocate resources dynamically and optimise performance, delivering structural productivity gains across every sector." She added: "Without faster delivery…the scale of planned investment risks falling short of its economic potential. Those who move fastest to integrate planning, finance and delivery will define the next era of infrastructure and capture the returns that come with it."
