Seth Cutler sits in the CEO chair at Ionna, the charging network backed by seven automakers, and describes his goal with the kind of clarity that sounds simple until you think about what it requires: “We’re a network today. But our goal is to become the network, where people say ‘I use Ionna for all of my travel.'” The statement appeared on the Plugged-In Podcast in late 2024, roughly a year after Ionna became operational as an actual company rather than just an announcement. Tesla figured out a decade ago what everyone else is still learning.
The Joint Venture Reality Check
Ionna launched in 2023 with backing from BMW, General Motors, Honda, Hyundai, Kia, Mercedes-Benz, and Stellantis. That roster represents significant global production capacity. It also represents seven different corporate priorities, seven different timelines for profitability expectations, and seven different internal debates about whether charging infrastructure is a cost center or a competitive advantage. When Cutler says the plan hasn’t changed despite slower EV sales from some backers, he’s describing the operational friction of running a consortium where not every member feels the same urgency.
Joint ventures work when the pain of inaction exceeds the cost of coordination. Airlines created Star Alliance because no single carrier could offer global reach alone. Credit card networks function because merchants and banks both need transaction flow. Charging networks present a different constraint: the value compounds with density, yet density requires capital deployment before utilization justifies the investment. Tesla built Superchargers because it owned both the margin on vehicle sales and the long-term brand loyalty that charging access creates. The Ionna partners own the margin on vehicle sales but must split the cost and control of the infrastructure.
GM tried building its own network. Ford partnered with multiple providers. Both eventually concluded that scale and interoperability matter more than proprietary control. The seven-member consortium represents a bet that shared infrastructure can deliver network effects faster than fragmented private efforts.
The Physics of Charging Density
A charging station needs four things to work reliably at highway scale: grid connection capacity, real estate access, software that handles payment and session management, and enough utilization to justify the capital cost per charger. Tesla solved this by installing Superchargers where its own fleet data showed demand, then restricting access to Tesla vehicles only. That closed loop let it control both supply and demand sides of the utilization curve. Open networks like Electrify America face the opposite problem: they must serve all brands, which means they can’t optimize placement based on proprietary fleet data, and they can’t restrict access to ensure their own vehicles get priority during peak times.
Ionna sits somewhere between those models. The seven backers collectively sell enough EVs to generate meaningful demand at specific locations. A Honda driver and a Hyundai driver both benefit from Ionna stations, creating shared utilization that justifies the investment. But those seven brands don’t represent the entire EV market. Ford uses Tesla Superchargers via NACS adapter. Rivian builds its own Adventure Network for remote locations. Ionna serves a subset of the market, which means it needs higher utilization per station than Tesla requires, because it can’t spread fixed costs across as large a denominator of total EV sales.
A typical highway charging site needs 1 to 2 megawatts of grid connection to support eight 350kW chargers. That assumes not all chargers pull maximum power simultaneously, which holds true when utilization stays below roughly 60 percent. Above that threshold, either the site needs load balancing software that throttles individual sessions, or it needs a larger grid connection with higher demand charges from the utility. Tesla’s closed network lets it predict peak utilization based on vehicle telemetry and holiday travel patterns. Open networks guess based on historical usage and regional EV adoption rates, which introduces more variance in the actual load profile.
Cutler’s comment about unchanged plans despite slower EV sales reveals the governance question that matters most: when does a shareholder decide the charging investment isn’t worth the capital allocation? If GM’s EV sales stall in 2025 while Hyundai’s grow, do they split costs evenly or proportionally to benefit received? If Stellantis wants stations along East Coast corridors while BMW prioritizes West Coast luxury destinations, who decides the deployment sequence?
A charging site takes 12 to 18 months from permitting to commissioning, which means decisions made in Q4 2024 deliver capacity in mid-2026. If two shareholders disagree on prioritization, that 18-month timeline stretches while the governance process resolves the conflict. Tesla doesn’t have that friction. When Supercharger deployment slows, it’s because Tesla made a capital allocation choice, not because seven executives needed consensus.
The consortium model distributes risk. If a charging network loses money for three years while building density, seven shareholders absorb that loss across their balance sheets rather than forcing one automaker to defend the investment to analysts every quarter. Electrify America exists because Volkswagen was legally required to fund it as part of the dieselgate settlement. It operates as a compliance cost, not a profit center, which shaped both its deployment strategy and its operational discipline.
The Adoption Curve Nobody Talks About
Buyers don’t choose EVs because charging networks exist. They choose EVs when the total ownership equation, including depreciation, insurance, and charging cost, beats the comparable gasoline vehicle. Charging availability affects that equation only at the margin, for road trips beyond 250 miles. Most buyers charge at home or work for 95 percent of their annual mileage. Highway charging solves the anxiety problem, not the utilization problem.
If Ionna delivers reliable 350kW charging along major corridors, it removes a psychological barrier for buyers considering EVs from the seven member brands. It doesn’t create demand for EVs on its own. The causal arrow runs from vehicle purchase to charging utilization, not the reverse. Tesla proved this by building Superchargers after establishing demand with the Model S, not before.
Electrify America and EVgo both added significant capacity in 2022 and 2023, ahead of the EV adoption curve. Utilization rates stayed low because total EV population grew slower than charger deployment. That’s pre-positioning infrastructure for future growth, but it means the charging networks operate at a loss longer, which tests shareholder patience when EV sales growth decelerates.
What Actually Has to Happen
For Ionna to become “the network” rather than “a network,” three things need to happen in sequence. First, the seven backers need to actually sell EVs in volume that justifies station utilization. If combined EV sales from the consortium grow 15 percent annually rather than the 40 percent projected in 2023, the utilization model breaks and stations sit underused. Second, the network needs interoperability with non-member brands, because a highway charging site can’t survive on seven brands alone when 20 brands sell EVs in the US market. Third, the governance structure needs speed of execution that matches Tesla’s decision cycle, which probably requires more autonomy for Cutler’s team than joint ventures typically grant.
None of those requirements violate physics. They require capital discipline, realistic demand forecasting, and willingness to admit when the original assumptions need revision. Can a seven-member consortium move fast enough to matter? Tesla started building Superchargers in 2012 with approximately 10 stations. By 2024, it operated over 2,000 sites globally. That wasn’t just capital, it was the compounding effect of unilateral decision-making and tight integration between vehicle production, fleet data, and infrastructure deployment.
The Lesson in Waiting to See
Ionna represents a reasonable answer to the coordination problem that stalled EV charging expansion. Seven automakers sharing costs and risks makes more sense than each building redundant networks or relying entirely on third-party operators who don’t share their incentives. Whether it works depends less on technology than on whether the consortium structure can deliver the speed and adaptability that infrastructure competition requires.
If EV sales growth accelerates in 2025 and 2026, Ionna’s bet on shared infrastructure will look prescient. If growth stays flat, the governance friction and utilization risk will test whether all seven partners stay committed. The physics works. Whether the organizational structure around the physics allows fast enough iteration to build what Cutler described: not just a network, but the network people choose for all their travel.