The United Kingdom now generates about as much electricity per person as it did in the late 1960s. Since peaking in 2003, per-capita generation has dropped by more than a third. This is not a global trend. Worldwide, per-capita electricity generation has risen more than 50% this century. Britain is swimming against the current. The simplest explanation — deindustrialization — is true but incomplete. Sectoral data from the International Energy Agency confirms that industrial electricity consumption has fallen by one-quarter since 2005. The UK's economy has continued its long shift from manufacturing to services, and factory floors draw more power than office buildings. So far, so familiar. But the data complicates the narrative. Residential and commercial electricity use has fallen by just as much as industrial consumption. British households and shops are not deindustrializing. They are, however, swapping incandescent bulbs for LEDs, replacing old appliances with models that meet tightening efficiency standards, and generally extracting more utility from each kilowatt-hour. Energy efficiency is doing as much heavy lifting as structural economic change. Imports have partially masked the demand picture. Net electricity imports have risen from 1% of demand in 2010 to 9% in 2025, meaning some consumption is met by generation happening elsewhere — largely via interconnectors to France, the Netherlands, and Norway. The UK is consuming less electricity than it used to, but the gap between generation and consumption has also widened. The structural question is whether this trajectory is benign or dangerous. If the decline reflects genuine efficiency — more economic output per unit of energy — it is generative. If it reflects an economy that has simply offshored its energy-intensive production to other countries while importing the finished goods, it is a resilience problem dressed up as progress. The truth is almost certainly both, in proportions that matter enormously for long-term energy planning. The timing creates a policy tension. The UK is simultaneously trying to electrify transport and heating — both of which will massively increase electricity demand — while its existing generation infrastructure has been sized for a shrinking load. The net-zero transition assumes per-capita electricity consumption will reverse course and climb. If the grid is planned around a declining baseline that is about to inflect upward, the margin for error is thin. Our World in Data presents the numbers cleanly, with appropriate caveats about imports versus demand. The underlying data comes from the Energy Institute's Statistical Review of World Energy and the IEA's sectoral breakdowns. The chart tracks generation per person since 1920, placing the current moment in a century of context.