THE GRID
Nvidia Says It Solved the Water Problem. I'm Not So Sure.
On Monday, Nvidia's head of sustainability stood up at London Climate Action Week and made a big claim.
"The water consumption challenge for data centers is largely solved," said Josh Parker.
Bold words. And they moved markets. But I want to pull the thread a bit.
The pitch: Nvidia's next-gen AI chips run on warm liquid cooling. The coolant — a water and propylene glycol mix, like car antifreeze — runs at 113°F. That's warm enough that you don't need giant chillers to cool it back down. No chillers, no big water bills.
Microsoft's VP of data center engineering, Steve Solomon, backed the claim. He said it could kill the need for mechanical chillers in most climates. Even in Arizona.
"The water consumption challenge for data centers is largely solved."
So what's the catch?
Right now, the U.S. has over 5,400 active data centers. They drink about 17 billion gallons of water a year. That sounds like a lot. It's about 0.3% of public water supply. Not huge.
But most of the water tied to data centers isn't used on-site at all. About 80% of a data center's total water footprint comes from the power plants that feed it electricity. That upstream water cost doesn't shrink just because you swap a chiller for warm liquid.
When Starlink Completes Its Global Takeover...
It's set to connect 3 billion people who've never had reliable internet.
That's the biggest connectivity explosion in human history.
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Nvidia's fix is real. It will cut on-site water use. But 700+ more data centers are being built right now. Each one needs power. And power needs water.
Parker said it himself in a blog post: "AI workloads are not getting lighter." Even with gains, total demand keeps rising.
Nvidia solved one part of the water puzzle. The bigger part — the power source — is still wide open. And that's where the real money flows.
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VOLTAGE
Batteries Are Having Their Moment
9.7 gigawatt-hours. That's how much battery storage the U.S. added in Q1 2026 alone.
It's the largest first quarter on record. Up 32% from a year ago. And the year is just getting started.
Most of the growth came from big utility-scale projects. In Q1, that segment hit 7.8 GWh across 1.5 GW of installed capacity. Six states led the way.
Why does this matter for the AI power story? Because batteries don't just store energy. They smooth out the grid. They let solar and wind show up when the load needs them. And they give data centers a backup plan that doesn't burn gas.
Ford and GM both made storage investments this year too. Auto companies are now placing bets on the grid — not just the road.
The grid used to be about wires and turbines. Now it's about chemistry. And the storage build is just getting started.
WIRED IN
Signals From the Grid
AES goes private in a $33.4 billion deal. BlackRock's Global Infrastructure Partners and EQT are taking AES off the public market. The deal gives them a 46 GW U.S. development pipeline and 11.8 GW of signed clean energy contracts — mostly with Big Tech. Private capital is buying the grid's future at scale.
The VOLT ETF crossed $808 million in assets. Tema's electrification fund closed at $42.05 on Monday. Earlier this year, 24/7 Wall St. noted the fund had returned about 60% since launch. Grid infrastructure is no longer a niche trade — it's drawing real capital.
Vertiv's liquid cooling bet is paying off. The company posted $2.65 billion in Q1 2026 revenue. Adjusted EPS grew 83% year over year. And it just acquired Strategic Thermal Labs to deepen its cold-plate and server-side cooling tech. If Nvidia's warm-cooling push takes off, Vertiv is the pick-and-shovel play.
Four hyperscalers join forces on climate. Microsoft, Google, Amazon, and Meta backed the Data Center Innovation Initiative through Elemental Impact. The focus: new cooling tech, water reuse, and low-carbon construction materials. When the four biggest builders in the world team up on sustainability, they're not doing it for the optics. They're doing it for the permits.
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