In Pictures: IONNA EV charging network doubles in size, tops JD Power satisfaction without proprietary app

IONNA's growth reflects a broader push to make EV charging as routine as plugging in at home.

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The joint venture's network now spans more than 180 live sites across the United States.

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IONNA's top JD Power ranking hinged on reliability and a frictionless charging experience.

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By skipping a proprietary app, IONNA leans on 19 partner integrations and Plug & Charge.

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Drivers can start a session without downloading yet another app or creating a new account.

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Satisfaction scores show that seamless payment and activation matter as much as charging speed.

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The network is backed by eight major automakers, including BMW, GM, Honda, Hyundai, Kia, Mercedes-Benz, Stellantis and Toyota.

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IONNA has more than doubled its US footprint since early 2026.

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Rivals in the DC fast charging market now face a network that topped JD Power's 2026 study.

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