For roughly two decades, electricity demand in wealthy countries was effectively flat. Efficiency gains offset economic growth, and grid operators had the luxury of maintaining rather than expanding. That era is over. AI data centers, EV charging, and heat pumps are compounding simultaneously, and analysts project global electricity consumption could double by 2050, roughly a whole new United States worth of power demand every five years. Bloomberg's Primer series spent time with the researchers, engineers, and companies working on the infrastructure side of that problem, from superconducting cable startups to the aftermath of Spain's worst blackout in modern history, and the conclusion is clear: building the grid has become a geopolitical competition, and not every country is competing from the same position.
The China comparison runs through the whole film and it is not comfortable viewing for Western grid planners. China's power generation has grown sevenfold since 2000. Its grid workforce is large, active, and experienced because the grid has never stopped expanding. Western grids, particularly in the US and Europe, spent decades in maintenance mode. Supply chains atrophied, skilled workers aged out, and the institutional muscle for major builds weakened. The IEA projects global grid investment needs to roughly double from current levels by 2030 to meet demand growth. The US has been working through interconnection queue backlogs running to years, not months, partly because grid operators themselves lack the capacity to process applications quickly. The countries that solve this fastest will attract the data centers, the manufacturing, and the high-value industries that run on cheap, reliable power. The ones that don't will export those industries to the ones that did.
The film covers two specific technical solutions. Veir, a startup backed by Microsoft and others, is developing superconducting transmission cables cooled with liquid nitrogen to near space temperatures, allowing a single cable to carry the power of several conventional lines in a fraction of the physical space. The company was producing 10-meter cable sections on a small assembly line when Bloomberg visited, with plans to have cables on the grid within a couple of years. The economics are still unproven at scale, and electric utilities are conservative customers. The second solution addresses grid stability as renewables displace spinning fossil fuel generators. Traditional power plants carry inertia, the physical energy stored in massive rotating turbines that automatically cushion the grid against sudden supply or demand changes. Solar panels have none. Spain tripled its solar capacity in five years, then experienced a blackout when several solar farms tripped offline and there was not enough inertia to hold the system together. The fix, already being deployed in the UK and now being mandated in Spain, is the synchronous compensator: a hundred-ton spinning machine that provides inertia with no fuel input, like a flywheel connected to the grid.
Bottom line: This is a good explainer for anyone trying to understand why the energy transition keeps running into infrastructure walls. The grid problem is not a technology problem. The technology exists. It is a procurement, permitting, workforce, and political will problem, and those are harder to solve than building a better cable. If you own or are buying an EV and rely on grid-charged overnight power, the stability of that grid over the next decade is directly your problem. This film is worth watching in full.