Global electricity demand is growing rapidly. A study by McKinsey shows that, under a fast-track scenario, global consumption could triple by 2050—from the current level of approximately 30,000 terawatt-hours (TWh) to as much as 90,000 TWh. Even under a slower-growth scenario, it would at least double. Three key drivers are behind this increase: the electrification of industry and key technologies, rising prosperity with new consumption habits, and climatic and geopolitical changes.
The transition from fossil-fuel-based or mechanical manufacturing and processing methods to electric processes is already well underway in key industries. Examples include e-mobility in transportation, robots in manufacturing, electric arc furnaces in steel production, and electrolysers for hydrogen production. At the same time, digitalization is driving electricity consumption even higher: AI-powered systems control production, logistics, and administration, while data centers—as the backbone of digital infrastructure—are among the fastest-growing consumers of electricity.
As prosperity grows, expectations for comfort are rising worldwide, and with them, the demand for electricity. In many emerging economies, a stable basic power supply is being established that includes not only lighting but also household and communication appliances, as well as digital services in education and healthcare. In industrialized nations, demand is growing for continuous power availability for air conditioning, heat pumps, streaming, and smart home applications. At the same time, urban densification is leading to greater electrification of infrastructure, for example through public transit systems, large-scale lighting concepts, and a growing commercial and service sector.
Global trends are also driving electrification. Heat waves are increasing the cooling needs of buildings, warehouses, and data centers. Extreme weather events such as storms, fires, or floods can damage power grids or take power plants offline. Added to this are geopolitical tensions that are putting pressure on critical supply chains. Many countries are responding by accelerating the expansion of renewable energy and transforming their energy systems to become more independent and resilient to crises.
The global demand for energy is not a future scenario. It has long been a reality. To understand it, one must understand its drivers. One thing is clear: the rising demand for electricity poses a challenge to the economy, politics, and society—while at the same time opening up new opportunities for a forward-looking energy supply.