NIKKO, Tochigi Prefecture--Steam and diesel locomotive ... only 60 percent of the heat that coal can,” said Hisashi Tezuka, 53, a chief of Tobu Railway’s rolling stock department.

Chairman of the West Somerset Railway Jonathan Jones-Pratt said: "The whole industry is in jeopardy over this. "We've got so much coal here but the problem is that we can't extract it." ...

If no calorific value is available, old figures are used or figures from the International Energy Agency (IEA). Mainly depends on the accuracy of the import price according to the invoice and the net ...

This resulted in the railway "making greater use of heritage diesel traction alongside steam and this helped us conserve coal stocks," a spokesperson said. Despite coal supply difficulties now ...