The hunger for electrical transformers has taken on a new urgency—fueled, in no small part, by the explosive rise of AI-powered data centers. Everyone wants more power, now. Yet, instead of a sleek, novel solution, one startup, Ayr Energy, has placed its bet on tech that’s as old as the electric grid itself.
Ayr isn’t chasing the latest trend. Their transformers use iron-cores, a design that’s been humming quietly along power lines for more than a hundred years. While plenty of startups pitch fancier alternatives—often promising silicon miracles—Ayr and its backers believe there’s plenty of untapped potential in the tried-and-true. The numbers are hard to argue with. Orders for their transformers have already pushed past $500 million, a figure that’s impossible to ignore in a market dominated by corporate giants.
“We looked at different ways to raise money at the start,” says Anirudh Reddy, Ayr’s co-founder and CEO, reflecting on the company’s strategy. “But the scale of the opportunity made us realize that bringing venture capital on board would let us move faster. We could take risks, aim bigger, and hopefully build something substantial.” That opportunity has proven magnetic for investors—Energy Impact Partners among them. Ayr’s raised $25 million over two funding rounds, not bad for a company reinventing what some see as a commodity.
Legacy companies—GE, Siemens, Mitsubishi—have ruled the transformer market for decades, churning out hardware with mechanical precision. For most of that time, their business was steady, even dull. Electricity demand in places like the US or Europe only drifted up or down at a predictable clip. Everyone could plan for what was coming. But then came the wave: remote work, unstoppable electrification, the insatiable hunger of AI computation—all of it hit at once. Demand for transformers didn’t just tick upward. It soared. Global Market Insights now predicts it could double within a decade.
Oddly, the big dogs in the industry seemed unimpressed. Having seen enough bubbles come and go, they hesitated, wary of pouring billions into new production lines only to be burned when the market cooled. Meanwhile, Ayr’s founders saw something else. There wasn’t a single trend driving this demand, Reddy says. This wasn’t a normal spike. This was a total, fundamental shift—something with staying power.
Ayr’s approach is different, too. Rather than building everything themselves, they partner with manufacturers in India—those factories build based on Ayr’s unique blueprints. Their secret? Modularity. Most transformers are customized for one specific use, which means buyers have to commit to specs long before a project takes shape. But with Ayr’s modular designs, clients can tweak their order late in the process—an option that’s nearly priceless when grid projects drag on, or when tech specs shift halfway through development. For companies working in renewables, for indie power producers, even for those running the data centers swallowing up megawatts, lead times are so long that guessing the right specs months ahead is almost a gamble. Ayr lets them hedge those bets, sidestepping some major industry pain points.
That bet—in both the business and technical sense—seems to be paying off. Ayr is aiming to wedge itself into the tight ranks of transformer suppliers, using this moment of wild demand to establish its reputation. If it works, they won’t stop at iron-core designs; they’re eyeing the next generation, like solid-state transformers. Reddy is blunt: “That was our strategy from the start. Get in now, deliver value, and grow into new technologies down the road.”
It’s a rare twist for a market seen as old-fashioned and slow. And yet, with an order book stacked high and investors watching eagerly, Ayr’s gamble on the familiar might wind up rewriting the playbook for a very electric future.
