Sabey Tests Renewable Diesel in Austin Backup Generators
Sabey Data Centers is piloting hydrotreated vegetable oil in backup generators at its Austin, Texas campus.
Updated on Nov. 9, 2026 in Data Centers
Sabey Data Centers has launched a pilot testing hydrotreated vegetable oil, a renewable diesel fuel, in backup generators at its Austin, Texas campus. The company has not yet published generator performance results or quantified emissions reductions from the pilot.
Why it matters
Diesel backup generators produce direct greenhouse gas emissions that count as Scope 1 under corporate accounting, and Sabey is testing a lower-carbon fuel as data center demand grows. The test will show whether the fuel can deliver the reliability required for emergency power.
A 2022 peer-reviewed Argonne National Laboratory study found waste-based renewable diesel reduced lifecycle greenhouse gas emissions by 79% to 86% compared with petroleum diesel, and crop-based versions by 40% to 69%. Sabey has not yet reported whether its Austin generators achieve comparable results.
The players
Sabey Data Centers
Sabey Data Centers is a privately held data center developer and operator that runs campuses across the United States.
Argonne National Laboratory
Argonne National Laboratory is a U.S. Department of Energy research center that conducts energy and environmental research.
The details
HVO is produced by hydrotreating vegetable oils, animal fats and other feedstocks into a fuel with properties similar to petroleum diesel, and it can generally run in compatible diesel engines with little or no equipment modification. Sabey is evaluating whether the fuel can meet the performance requirements of its emergency backup generators at the Austin campus.
Timeline
2022: Argonne National Laboratory publishes its study on renewable diesel lifecycle emissions.
November 9, 2026: Article reports on Sabey's HVO pilot in Austin.
Big Picture
Argonne National Laboratory's 2022 lifecycle analysis found waste-based renewable diesel cuts emissions far more than crop-based versions, and Sabey's Austin pilot tests that fuel in real backup generators. The study's results show the environmental case rests on feedstock choice rather than on the fuel category alone.
For Austin residents, the pilot is largely invisible day to day, since backup generators run only during outages or tests. Its significance is in whether cleaner fuel can become standard for the data centers operating in the area.
The takeaway
Lower-carbon backup power depends on both the fuel's lifecycle footprint and whether it performs reliably under emergency conditions. Sabey's published results will show whether the Austin pilot meets both tests.
Further reading
For more on facilities like this, see Data Centers coverage across the site.
Source note: This article includes information reported by Environment+Energy Leader.
