Bi-mode future for freight as S

BI-MODE locomotives are the likely replacement for Class 66s when the time comes to order new traction, according to Rail Freight Group Director General Maggie Simpson OBE.

Speaking to delegates at The future of rail infrastructure in the UK - CP6, the Integrated Rail Plan, and Delivering Modernisation virtual conference on February 4, Simpson explained that rail freight must begin its work to meet government decarbonisation deadlines of 2050 now, rather than wait until 2049.

While making the case for electrification, she said that the long-term future is electric, bi-mode or tri-mode traction, and that the sector could also start decarbonising now by running longer trains.

Simpson highlighted how freight trains run from Teesport to Scotland almost entirely under the wires, apart from a two-mile nonelectrified section, although she also stated that the overhead line electrification on the East Coast Main Line was not strong enough to support freight traffic.

Alternative power could be an option for yards and terminals, she said. And while she acknowledged that not all routes could be electrified, she told delegates she had not read anything yet to suggest that hydrogen could help the rail sector.

Speaking to RAIL on February 2, Simpson said it was a commercial market. Therefore, even though it was government that set the net zero 2050 deadline, “the decisions on investment rest with the freight operating companies”.

In a strategy document written at the end of 2020, Freightliner highlighted the age of the Class 59s, ‘60s’ and ‘66s’ used by the freight sector. It said that as planning for their replacement begins, there is an opportunity to rapidly increase the percentage of electrically hauled freight trains.

Already GB Railfreight is looking at the market for such locomotives, although it expects to continue using ‘66s’ for many decades to come, with some of its fleet little more than five years old.

GBRf Managing Director John Smith told RAIL on February 1: “The ‘66s’ will be around for 30 to 40 years yet - we have some of the youngest ones built.”

He called them “a real workhorse”, adding that their introduction had been the biggest traction change since diesel power replaced steam.

There are currently 635 locomotives in traffic with DB Cargo UK, Freightliner, GB Railfreight, Direct Rail Services, Colas Railfreight and DCRail.

Of those, 557 are diesel locomotives (87.7%), while 54 are electric (8.5%) and 24 are bi-modes (3.8%). Class 66s account for 382 of the diesels across the six operators, with DCRail the only operator without any in its fleet.

The bi-mode locomotives are ten Class 88s (dating from 2015-16, and which use overhead wires and a small diesel engine for power) and 14 Class 73s (dating from 1965-67. Five were rebuilt with more powerful diesel engines in 2014).

These figures do not include