Austin startup TAR valued at $1bn after Spark Capital-led funding round

Austin-based startup TAR has raised $120 million in a Series A funding round to build off-grid power systems for data centres. The transaction, revealed on Thursday, values the young company at roughly $1 billion.

The funding round was led by Spark Capital, an early backer of artificial intelligence heavyweight Anthropic, with participation from existing investors Buckley Ventures and Align Fund.

TAR is attempting to solve one of the biggest bottlenecks facing the artificial intelligence boom: the desperate search for electricity. Data centre developers currently face years-long waits to connect to traditional utility grids, alongside labour shortages and local opposition. With grid connection queues growing longer, developers are increasingly looking for ways to generate their own power on-site.

Bypassing the grid backlog

Instead of waiting for power companies to hook them up, TAR builds self-contained, "plug-and-play" power blocks designed to run entirely independent of the grid.

These systems rely primarily on solar power and battery storage, using natural gas units only as a contingency during emergencies. This differentiates TAR from traditional off-grid options. Many developers looking to bypass utility queues default to dedicated gas-fired plants because they can run reliably around the clock. TAR is taking a different approach, prioritising renewables first and using fossil fuels strictly as a backup.

"We found a way to deploy energy at speed," said Pat Becker, TAR’s co-founder. Becker claims the company can get sites online "in a matter of months" by relying heavily on automation and robotics during the assembly process to bypass traditional construction delays.

Manufacturing at scale

The company is already building its first large-scale project in Texas, which will have a capacity of several hundred megawatts. TAR has not publicly identified the data centre customer behind the project, but has confirmed that another major development is planned for next year.

TAR plans to use the fresh capital to hire more engineering talent and scale up its manufacturing capacity, moving its concept from pitch decks to physical infrastructure. The funding signals a growing investor appetite for alternative energy solutions that can keep pace with the rapid expansion of AI computing.

If the company can deliver on its timeline, it could reshape how and where AI infrastructure is built. Rather than clustering around regions with ready grid capacity, developers could theoretically set up high-performance computing facilities wherever they can acquire land, bypassing the utility queue entirely. That shift could redefine which data centre projects get built first and how energy is sourced for the next generation of computing.