TAR secured $120 million in a Series A led by Spark Capital, which is also an investor in Anthropic PBC. The financing, revealed on Thursday, pegs TAR's valuation at roughly $1 billion. Existing backers Buckley Ventures and Align Fund took part as well.
Co-founder Pat Becker says TAR is designing plug-and-play power blocks built around solar, battery storage and natural gas units kept for backup. The goal is to run a data center without tapping the utility grid. To get sites online faster, the company leans on automation and robots. As Becker put it, "We found a way to deploy energy at speed," adding, "We can deploy in a matter of months."
Developers of large computing sites keep running into the same headwinds: limited labor, local pushback and long queues for grid connections. Many proposals default to gas-fired plants because they can run around the clock. TAR is taking a different tack. Rather than relying on fossil fuel as a primary source, the setup prioritizes renewables paired with batteries and turns to gas strictly as a contingency during backup or emergency events, Becker said.
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TAR is now constructing a project in Texas with a capacity on the order of several hundred megawatts for a data-center customer that has not been identified publicly, with another major development planned for next year. The new funding will go toward adding engineering talent and scaling manufacturing - a signal that off-grid, renewables-first power is moving from pitch decks to real capacity. If you care about where the AI boom sources its electricity, watch how quickly companies like TAR can stand up megawatts without a utility interconnection. That timeline could reshape which data center projects get built first and where value accrues in the energy stack.
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