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Rune develops modular direct-current data centers for renewable energy sites.
Founded in 2022 and based in California, Liitto Technology, doing business as Rune, develops modular direct-current data centers for renewable energy sites. Its systems use surplus or curtailed power from solar and wind plants for AI training, simulations, data processing, and bitcoin computing. In September 2026, Rune raised USD 40 million in Series A funding led by Spark Capital, with participation from Activate Capital, Committed Capital, Timeless Partners, Inc., Logos Fund, Union Square Ventures, Vestas, and Lowercarbon Capital.
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