In later years, due to commercial reasons, the main coal supply became mostly by road from either Yorkshire or Scotland.

Steam was supplied from four Yarrow & Co. coal-fired boilers with tangentially fired tilting pulverized fuel burners, with 3no type LM13 table mills made by International Combustion of Derby.

It used a central unit control system with the turbine/hydrogen cooled alternators manufactured by the General Electric Company (GEC).

Each unit had boilers manufactured by John Thompson of Wolverhampton, each using two suction ball mills each with two exhausters, these feeding to twelve front wall pulverized fuel burners.

Bold "B" continued to run until the late 80's after it was privatised from the Central Electricity Generating Board to National Power.