The demand supercycle: how data centers and electrification are reshaping power markets

For most of this century, the most boring number in energy was U.S. electricity demand. Despite a growing population and economy, total consumption was essentially flat from the mid-2000s onward — efficiency gains in lighting, appliances, and industry quietly canceled out growth. Utilities planned around it; the whole industry internalized the assumption that load wasn't going anywhere. That assumption has just collapsed. The grid has entered what is fairly described as a demand supercycle: the first sustained surge in electricity consumption in roughly two decades, and it's accelerating.

The headline driver is artificial intelligence. Training and running large AI models requires data centers of unprecedented scale and power density — facilities that can each draw as much electricity as a small city, clustered in regions that never planned for them. But AI is not the only force. The electrification of transportation and buildings, and a reshoring wave of energy-hungry manufacturing, are pushing in the same direction at the same time. For the first time in a generation, the binding constraint on the U.S. grid is shifting from "what do we do with flat demand?" to "how do we build supply fast enough?"

01The end of flat

To appreciate how big a deal this is, you have to understand how entrenched the flat-demand era was. Planners, regulators, and investors spent two decades operating in a world where the grid grew sideways. New generation mostly replaced retiring plants rather than adding net capacity; transmission was built sparingly; and the central worry was managing a slowly decarbonizing supply mix against demand that wasn't rising. Almost every institution in the power sector is calibrated to that world.

The supercycle breaks the calibration. When demand was flat, a new data center in a region was a rounding error. Now, a single large AI campus can represent a step-change in a utility's peak load, arriving faster than new supply or transmission can be built to serve it. The mismatch between how quickly demand can show up and how slowly supply can be added is the defining tension of this moment — and it's why load growth, not decarbonization alone, is suddenly the story driving power markets.

The grid spent twenty years optimized for demand that didn't grow. The hard part of the next decade is that it suddenly does — faster than supply can follow.

02How big, how fast

The numbers are striking even allowing for forecast uncertainty. Data centers consumed roughly 4.4% of total U.S. electricity in 2023, and credible analyses project that share rising to somewhere between 6.7% and 12% by 2028. In capacity terms, U.S. data-center power demand is forecast to roughly double — from about 31 GW in 2025 toward 66 GW by 2027 — as AI buildout accelerates. Their slice of summer peak demand is projected to climb from around 4% in 2025 toward 8–9% within a few years.

Two features make this especially hard to absorb. First, it's concentrated: data-center load clusters in particular regions, so the strain lands unevenly, with some grids facing elevated reliability risk while others barely notice. Second, much of it is around-the-clock: an AI data center runs flat-out day and night, so it doesn't just raise the afternoon peak — it lifts the entire load curve, including the overnight hours when solar is absent. That round-the-clock profile is the key to everything that follows, because it shapes exactly what kind of new supply the grid actually needs.

03What it does to prices

When demand outruns the pace at which new supply connects, the price of capacity and energy rises — that's not ideology, it's the market doing its job. The clearest signal so far has come from capacity markets in the regions absorbing the most load growth, where the price of securing firm capacity for future years has jumped sharply — in one major market, a recent capacity auction cleared at roughly nine times the prior year's price. Those price signals are the market's way of shouting that it needs more supply, and fast.

For developers of new generation and storage, rising prices are a powerful tailwind. The same scarcity that worries consumers and regulators is the signal that makes new projects economic — and it rewards most the resources that can deliver when the grid is tightest. After two decades in which flat demand kept a lid on the value of new capacity, the supercycle has reopened the case for building, at scale, the supply the grid now visibly needs.

What's driving the return of load growth

Driver	Why it adds load	Load shape
AI data centers	Dense compute at unprecedented scale	Around-the-clock, concentrated
Electrified transport	EVs shifting miles from gasoline to grid	Evening & overnight charging
Electrified buildings	Heat pumps replacing gas furnaces	Winter & evening peaks
Reshored manufacturing	New domestic factories & industry	Steady industrial baseload

04The backlash — and the turn to renewables

Demand growth this large doesn't arrive without friction, and the friction is now shaping where and how power gets built. As communities have absorbed what a cluster of data centers actually means nearby, pushback has grown sharp and specific. The concerns are concrete: many large data centers consume enormous volumes of water for cooling, straining local supplies in already-dry regions; their equipment and any on-site generation raise local temperatures and noise; and where operators or utilities lean on nearby gas plants to meet round-the-clock demand quickly, they bring exactly the air-quality burdens and emissions that neighbors don't want next door.

And then there is the bill. When a surge of new load outruns supply, the cost of meeting it can spill onto everyone's electricity rates — so residents increasingly find themselves paying more so that a hyperscaler's campus can run. Scarce water, hotter air, dirtier air, and rising bills have together turned data-center siting into a genuine political fight in a growing number of communities, with projects delayed, contested, or blocked outright.

The objections to a gas-backed data center — water, heat, dirty air, higher bills — are precisely the objections that clean, storage-backed power doesn't trigger. The backlash is, in effect, an argument for renewables.

That resistance is bending the trend toward renewables, for a straightforward reason: solar paired with storage answers nearly every complaint at once. It uses little to no water to generate, emits nothing locally, doesn't foul a neighborhood's air, and — by adding genuinely new supply rather than competing for scarce existing capacity — helps relieve the upward pressure on prices rather than adding to it. For the buyers trying to keep their social license and for the communities deciding what to host, clean generation backed by storage is increasingly the path of least resistance as well as least harm.

05Why buyers want clean & firm

Here's the twist that connects the demand supercycle directly to what we build. The biggest new buyers — the hyperscalers behind AI data centers — overwhelmingly want their enormous new load served by clean power, both for corporate climate commitments and because clean energy is increasingly the cheapest to build. But they also need it to be reliable around the clock, because a data center can't pause when the sun sets. That combination — clean and firm, 24/7 — is precisely the hard problem the energy transition has been circling.

It's why these buyers have been willing to sign long-term contracts for every kind of carbon-free firmness they can find, from restarting nuclear plants to procuring solar paired with massive storage. A solar farm alone doesn't match a data center's flat, all-hours demand. A hybrid plant that banks midday solar in storage and delivers firm output across the evening and overnight comes far closer — and that's the product the supercycle is creating demand for.

The new buyers don't just want clean megawatt-hours. They want clean power at 3 a.m. — which is a storage-and-firmness problem, and exactly the one our plants are built to solve.

06What it means for developers

For an independent power producer, the demand supercycle is the most favorable backdrop in a generation — but it rewards a specific kind of project. Flat demand made every new megawatt compete to displace an existing one; growing demand means the grid needs net-new supply, and lots of it. Scarcity pricing rewards resources that show up when the grid is tight. And the largest, most creditworthy new buyers are asking specifically for clean, firm, around-the-clock power delivered under long-term contracts.

That is a near-perfect description of the market a hybrid solar-plus-storage-plus-firm developer is built to serve. The supercycle doesn't just mean "more demand" in the abstract — it means more demand for exactly the firm, dispatchable, clean capacity that's hardest to build and most valuable to own. The grid spent twenty years not needing much new supply. It now needs an enormous amount, of a particular kind, on a tight clock. That's the opportunity the next decade hands to the developers who can build it.