What the business is
Austin startup building self-contained modular systems of renewable generation and batteries, with backup gas, for AI data centres in West Texas.
The bet
Owning the full stack of off-grid generation, from site selection to operation, is the only way to deploy gigawatt-scale power for data centres in tight time windows.
Starting capital
$120M Series A led by Spark Capital, with prior investors Buckley Ventures and Align Fund.
How it started
Pat Becker and Leonhard Soenke founded TAR in 2026. The team includes energy veterans from Hut 8, AES and Vistra and robotics engineers from Zipline, GrayMatter Robotics and Lucid Motors.
What happened
TAR says it handles every step itself, from site selection and design to procurement, construction and operation, and that its systems do not connect to the grid. Becker told Bloomberg it is building a several-hundred-megawatt project for an undisclosed data centre customer in Texas and plans another large development next year. It says it is carrying out a utility-scale deployment with one of the largest neoclouds and is finishing TAR Terminal One, a West Texas manufacturing and logistics centre.
How it ended up
On 10 September 2026 TAR announced the $120M Series A to grow its Austin headquarters, San Francisco engineering office and West Texas site and to speed up deployments, hiring in engineering, robotics, power systems, operations and supply chain.
What has to be true
Power is becoming the main bottleneck to scaling compute, per Spark Capital.
Kimmeridge said up to half of planned US data centres face delays or cancellation.
Gigawatt-scale deployments in tight time windows need an owner of the full stack, according to Becker.
Off-grid systems avoid waiting for grid connections.
What can be applied
When a scarce input blocks a booming industry, a new company can reach a billion-dollar valuation on a build plan alone; delivery of the first megawatts is the test.
Aftermath
As of 2026-09-10 TAR had raised $120M and was finishing its manufacturing centre. The several-hundred-megawatt project and the neocloud deployment were described by the company and not yet delivered.
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