Pacific Harbor Line Tests CO₂ Capture System in the U.S.
29.10.2025
Pacific Harbor Line has launched trials of an innovative CO₂ capture system designed for locomotive exhausts to enhance its environmental performance and achieve Tier 4 compliance.
This is reported by the railway transport news portal Railway Supply.
Pacific Harbor Line and Remora Join Forces for Cleaner Freight Operations
U.S. freight operator Pacific Harbor Line (PHL) has signed an agreement with Michigan-based startup Remora, a developer of advanced carbon capture systems for transport. The partnership aims to reduce emissions and modernize PHL’s locomotive fleet.
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PHL operates a key rail network connecting the Ports of Los Angeles and Long Beach with major national freight corridors. Therefore, the company actively invests in sustainable technologies to cut its carbon footprint while maintaining high logistics efficiency.
Remora’s mobile capture system can collect up to one ton of CO₂ per hour of locomotive operation. The captured gas is then compressed and converted into liquid form, making it easier to transport and reuse. As the U.S. currently faces a shortage of industrial CO₂, the captured product can be sold to manufacturers and medical suppliers.
Pacific Harbor Line Accelerates Its Sustainability Strategy
Founded in 2020, Remora has already secured $117 million in investments from venture capital firms and industry partners. The company has refined its system based on road-transport trials, eliminating backpressure issues and improving collection efficiency.
Over the past 15 years, PHL has consistently upgraded its locomotive fleet. It first achieved Tier 3+ compliance, later switched to biodiesel fuel, and successfully tested a battery-electric EMD Joule locomotive developed by Progress Rail. The collaboration with Remora continues this long-term strategy toward greener and more sustainable freight rail operations.
Pacific Harbor Line demonstrates a practical commitment to reducing emissions and advancing environmental responsibility in the rail industry. If the trials prove successful, Remora’s technology could become a model for nationwide adoption across freight rail operators.
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What is Pacific Harbor Line doing to reduce CO₂ emissions?
The company is deploying Remora’s mobile system to capture CO₂ from locomotive exhausts, aiming to meet Tier 4 standards and improve air quality.
How does the Remora technology work?
It captures up to one ton of CO₂ per hour, compresses it, and converts it into liquid form for industrial or medical reuse.
When will Pacific Harbor Line complete the testing phase?
Pilot trials are expected to run over the coming months, after which the company will evaluate results and consider scaling the system across its entire fleet.
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