COLUMBUS, Ind. – Cummins Inc. and Liberty Energy Inc. announced Wednesday that the industry’s first natural gas variable speed, large displacement engine to power Liberty’s digiPrime hydraulic fracturing platform will be deployed in the first half of 2025. The companies entered a strategic partnership in June 2024 to develop revolutionary technology for the completions services market.
Cummins HSK78G natural gas engine was first launched in March 2019 as part of a fixed-speed generator set for the power generation market. Designed to provide reliable power, regardless of the natural gas source or the operating environment, the engine reached new efficiency levels and improved the total cost of operation. The recent development effort for Liberty’s digiPrime platform leverages the already successful HSK78G platform and improves the 78-liter natural gas spark-ignited engine’s response time and load acceptance during operation.
The digiPrime pump, anchored by a 3,000 horsepower Cummins natural gas variable speed engine, is a direct-drive solution with outstanding thermal efficiency. This pump configuration translates into reduced fuel costs and is one of the lowest-emission solutions in the completions market.
“We are excited for this new chapter of our relationship with Liberty, as we work together to adapt Cummins technology to enhance their service offerings,” Jenny Bush, President of Power Systems Business at Cummins, shared. “In addition to the high efficiency and reduced fuel consumption offered, the HSK78G variable speed engine will be EPA Mobile Off-highway and CSA compliant. It is a major step in providing products that help our customers reduce their carbon footprint without sacrificing the reliability, productivity, and profitability of their operation.”
Read more on the industry’s first natural gas variable speed large displacement engine and the Cummins/Liberty partnership, here.
