A cooling tower at the Constellation Nine Mile Point Nuclear Station in Scriba, New York, US, on Tuesday, May 9, 2023.
Lauren Petracca | Bloomberg | Getty Images
Tech companies are increasingly looking to directly connect data centers to nuclear plants as they race to secure clean energy to power artificial intelligence, sparking resistance from some utilities over the potential impact on the electric grid.
Data centers, the computer warehouses that run the Internet, in some cases now require a gigawatt or more of power, comparable to the average capacity of a nuclear reactor in the U.S.
The data centers are essential to U.S. economic competitiveness and national security as the country competes with adversaries such as China for supremacy in the race to develop AI, said Joe Dominguez, the CEO of Constellation Energy, which operates the largest nuclear fleet in the U.S.
“When you’re talking about large [demand] load that also wants to use zero-emission energy, you’re going to bring it very close to nuclear power plants,” Dominguez said on Constellation’s second-quarter earnings call Tuesday. Constellation, headquartered in Baltimore, operates 21 of the 93 reactors in the U.S.
Constellation’s shares have surged 62% this year, the sixth-best stock in the S&P 500, as investors attach a higher value to the company’s nuclear power capacity to meet the growth in data centers. Shares of Vistra Corp., based outside Dallas and owner of six reactors, have doubled this year, the second-best performing stock in the S&P after AI chipmaker Nvidia.
Tech companies are building out data centers just as power supply is increasingly constrained due to the retirement of coal plants and as demand is climbing from the expansion of domestic manufacturing and the electrification of vehicles.
The largest grid operator in the U.S., PJM Interconnection, warned in late July that power supply and demand is tightening as construction of new generation lags demand. PJM covers 13 states primarily in the Mid-Atlantic region, including the world’s largest data center hub in northern Virginia.
Constellation’s Dominguez argued that connecting data centers directly to nuclear plants, called co-location by the industry, is the fastest and most cost-effective way to support the buildout of data centers, without burdening consumers with the costs of building new transmission lines.
“The notion that you could accumulate enough power somewhere on the grid to power a gigawatt data center is frankly laughable to me — that you could do that in anywhere that doesn’t start with decades of time,” Dominguez said. “This is an enormous amount of power to go out and try to concentrate.”
Amazon’s nuclear agreement
But co-locating data centers next to nuclear plants already faces controversy.
In March, Amazon Web Services bought a data center powered by the 41-year-old Susquehanna nuclear plant in Pennsylvania from Talen Energy for $650 million . But the agreement to directly sell power to the AWS data center from the nuclear plant already faces opposition from utilities American Electric Power and Exelon, who have filed complaints at the Federal Energy Regulatory Commission (FERC).
AEP and Exelon argue that the deal between Amazon and Talen sets a precedent that will result in less available power in the PJM grid area as resources “flee to serve load that uses and benefits from — but does not pay for — the transmission system”
“This will harm existing customers,” the utilities told FERC in a filing in June. Talen Energy has dismissed the objections as “demonstrably false,” accusing the utilities of stifling innovation.
“The rapid emergence of artificial intelligence and data centers has fundamentally changed the demand for power and leads to an inflection point for the power industry,” Talen said in a June statement. “Talen’s co-location arrangement with AWS brings one solution to this new demand, on a timeline that serves the customer quickly.”
FERC has requested more information on the service agreement between Talen and AWS.The regulator is holding a conference in the fall to discuss issues associated with connecting large electricity loads directly to power plants.
“It really is a great opportunity for there to be interaction between stakeholders and the commissioners in an informal setting like a conference, as opposed to doing so in litigation,” Kathleen Barrón, chief strategy officer at Constellation, said on the power company’s recent earnings call, referring to the fall FERC meeting.
Shopping for nuclear power
Constellation and Vistra have backed the AWS-Talen agreement in filings to FERC, with each of their CEOs saying on their earnings calls this week that co-location and traditional grid connection will be needed to meet demand.
Barrón told CNBC that Constellation has “seen interest from many” tech companies in potentially co-locating a data center at one of its sites.
Vistra is having numerous conversations with customers about co-location and is “in due diligence for a number of sites,” CEO Jim Burke said Thursday. With the dispute in the PJM region over co-location, data center developers may take a closer look at Texas, which operates its own grid called ERCOT, Burke said.
“We’re seeing some interest in Comanche Peak,” Burke told analysts on the company’s second-quarter earnings call, referring to one of Vistra’s nuclear plants. Comanche Peak, about 50 miles outside Fort Worth, Texas, has two reactors with 2.4 gigawatts of capacity, enough to power 1.2 million homes in typical conditions and 480,000 homes in peak periods, according to Vistra.
“We continue to explore that option,” CEO Robert Blue said on Dominion’s second-quarter earnings call. “We do clearly realize any co-location option is going to have to make sense for us, our potential counterparty and stakeholders in Connecticut.”
Kelly Trice, president of Holtec International, a privately held nuclear company headquartered in Florida, said the U.S. needs to start thinking more about balancing the power needs of data centers with those of all consumers. Holtec is working to restart the Palisades nuclear plant in Michigan and has also had conversations with tech companies about nuclear energy.
“Essentially, the hyperscalers and the data centers can take all the power and the consumer not get any of that if we’re not careful,” Trice told CNBC. “So the balance there, where the consumers actually get what is rightfully theirs too, is a factor.”
“The United States hasn’t really started wrestling [with] that yet,” Trice said. “But I think we’re getting close.”
Yolo County, California depends on its climate for continued agricultural success. As such, the county’s leaders are taking environmental stewardship seriously by aiming for full carbon neutrality by 2030. To help achieve that goal, they’re putting zero-emission machinery like the Volvo DD25 Electric compactor to work.
We got our first chance to sample the DD25 Electric at Volvo Days last summer, where the all-electric tandem roller’s vibrating drums impressed dealers and end users alike. It was no surprise, then, that when Yolo Country fleet superintendent, Ben Lee, when shopping for a compactor the DD25 Electric was high on his list.
“The DD25 Electric will help us achieve our goals in several ways,” explains Lee. “By reducing emissions, lowering noise levels, being more energy-efficient, improving working conditions and promoting environmentally friendly practices … we’ll use it to compact soil, gravel and other base materials for road and foundation projects, as well as rolling out and leveling asphalt during road construction and resurfacing.”
To help Lee handle those various projects, the Volvo’s drum frequency can be adjusted from 3500 vpm (55 Hz) to 4000 vpm (67 Hz) to cater to different applications and materials.
Getting power to the compactor, too, is something Yolo is considering. “There are some remote areas in the county, so we’re looking into a mobile, self-contained charging unit as well,” explains Lee, apparently referencing the Volvo PU130 mobile battery. “So we wouldn’t have to bring the machine back to the yard each night during a long-term project.”
Yolo County views electric equipment as an essential step in reducing emissions and energy consumption, especially as communities work towards stricter regulations and sustainability goals.
Electrek’s Take
This press release came to us ahead of the devastating wild fires in Southern California that are dominating headlines right now – so much so that I effectively sat on the news for a few days, debating whether or not we should even be talking about a California news story that isn’t about the fires right now.
But I realized: this story is about the fires. Climate change driven by combustion and carbon emissions is driving climate change and that’s making fires like these possible … and I should have run it sooner.
Kubota came to this year’s CES with a sprawling display filled with electric equipment, hydrogen gensets, and an onslaught of commercial robots ready to mow, farm, dig, and build. If you weren’t impressed by Kubota’s display this year, you weren’t paying attention.
Kubota gave us a sneak peek of its KATR farm robot – itself a smaller, updated version of last year’s New Agri Concept – before the doors officially opened last week. Kubota’s robotic farm buddies promise to be able to quietly and autonomously haul stuff from one end of the farm to another, or pull carts and specialized implements along predetermined paths.
KATR uses self-leveling technology and active suspension to ensure its cargo deck stays level when working on the sort of uneven terrain found on farms or construction sites.
That doesn’t mean the New Agri Concept is dead, though. Agri Concept 2.0 debuted as an electric tractor concept offering AI-powered automation and a fully electric powertrain. The new version features a Lite Brite-style “grille” that it uses to communicate its current mode, direction, and other important information with the people it shares a job site with.
On the more practical side, Kubota showed off its KX38-4e Electric compact excavator. First shown in overseas markets in 2022, the KX38-4e Electric features a 49.2 kWh lithium-ion battery that’s good for up to five hours of continuous operation. More than enough to complete a typical day of work on a construction site when you factor out idle time.
An onboard DC fast charger means it can be quickly recharged between shifts, too. But when there’s no grid power on the site, charging can be a challenge. That’s why Kubota has hydrogen genset for zero-emission on-site power generation.
Kubota electric excavator.Kubota Denyo hydrogen genset.
Looked at individually, each of the new electric Kubota products on display might be impressive. The real magic, though, is in the way the Kubota machines work together as a holistic job site or farm solution.
“At Kubota, we believe that truly listening to our customers drives innovation in every aspect of what we call the ‘Work Loop’,” explains Brett McMickell, Chief Technology Officer of Kubota North America. “The Work Loop — an essential cycle of assessing, analyzing, and acting — has always been fundamental to effective task management. With the integration of advanced sensors, AI-driven analysis, networking protocols, automation, and robotics, we are enhancing this cycle to be more seamless and efficient than ever before.”
That was obvious in some of the more thoughtful implements and attachments on display, including a Smart Plant Imager that uses advanced robotics and “hyper-spectral imaging” cameras to capture real-time data and insights on a plant-by-plant level – as well as a Smart Autonomous Sprayer and Robotic Pruner that that classifies buds and canes based on position and fruiting potential, it optimizes production precision and accuracy.
The more you look, the more impressive Kubota’s farming solution gets. “We will continue to learn from many of our customers across segments to iterate the next product and technology solution that will help them manage tomorrow’s challenges and grow their businesses,” McMickell added. “This is how Kubota works to make a better quality of life for individuals and society.”
The e-bike industry has stalled a little bit in terms of features, and with harsh new legislation coming in from places like California, maybe it is time to start looking at e-bikes that are light, efficient, and smooth rather than how much wattage they can output. The Tenways CGO 600Pro, which comes in at just 37 pounds, is a model e-bike you should keep an eye on…
The CGO 600Pro comes in 2 flavors: a carbon belt single-speed version that Micah reviewed and this one, which is a chain and 8-speed Shimano gears. The belt drive is going to win out on simplicity and weight but if you are expecting to get close to the ‘class 1’ top speed of 20mph or need to go up some significant hills, you’ll want to opt for the chain/gear version here.
One thing I love about this bike is the tradeoff decisions. These keep the price low and weight down while still providing a great ride. The spec sheet overall is solid but not top-shelf.
Tenways CGO600 Pro tech specs (chain/geared version)
Motor: 350 Watt rear hub motor with 45 Nm of torque
Top speed: 20 mph (32 km/h)
Range: Claimed up to 53 miles (85 km)
Battery: 36V 10Ah (360 Wh)
Weight: 37 lb (16.8 kg, over 40lbs with fenders, kickstand, etc)
Frame: 6061 aluminum alloy
Tires: CST Puncture-proof 700*45C-size Tires
Brakes: Tektro dual-piston hydraulic disc brakes
Gearing: Shimano 8-Speed Claris
Extras: Compact LED display, 4 pedal assist levels, slim fender set, kickstand, internally routed cables, LED lighting, removable battery, Tenways app integration, torque sensor, four color options
No Throttle?
Note that as a class 1 e-bike, neither belt/chain version has a throttle. While this may be controversial to some, it not only simplifies the bike, it makes it a Class 1, which will be legal in the most places. I tend to think of no throttle as a “foot throttle” and for the commuter application, this will serve well. Would I appreciate a throttle on a hill start? Perhaps.
The idea of this bike is to just enhance your pedal bike experience. You are going to get some exercise on this bike versus a bike that is a glorified low-power moped that runs on throttle with vestigial pedals.
More importantly, the torque sensor here is phenomenal; I mean, it is probably the best torque sensor I’ve ridden connected to a rear hub motor. The acceleration is smooth and strangely powerful for the 350W/45nm motor. Significant hills are a breeze, and this is one of the few bikes where I forget that I’m using an e-bike sometimes (until I look down and I’m going 20mph with little effort). Hills are also where the gearing really helps.
The tires are also the perfect size for a commuter with puncture resistance and treads that will do OK in rain and snow.
The bike itself is also very stealthy in terms of showing that it is a powered e-bike. The small 36V, 10Ah battery is integrated magnificently into the narrow downtube of the bike. All of the cables are integrated into the bike frame for a super-clean look. The rear hub motor is small but packs a punch. Many people won’t even recognize this as an e-bike. While I’m proud to be riding an e-bike around, perhaps some people would like to keep that on the down-low.
Brakes are great with hydraulic Tektros clasping against 160mm rotors in front and back. It is such a light bike that stopping can be jarring.
Assembly was super easy and took about 30 minutes with the included tool set. The battery came about 40% charged but was ready to go within a few hours with the 3A charger. Shoutout to Tenways for using a water-resistant standardized barrel charger adapter and not some proprietary adapter so that I can use one from another bike when I inevitably lose it.
Electrek’s take
The Tenways CGO600 is a fantastic light, clean, stiff and smooth e-bike that I have 0 reservations about recommending. While the battery and motor are small, they power the light bike admirably and for around 50 miles (your mileage will vary).
Currently there is a $200 off promotion code “HAPPY2025TW” at checkout bringing the CGO600Pro down to $1399 which is an amazing price for this bike:
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