A GIB spokesman contacted by Recharge remained tight-lipped on  the timing of the sale which is expected to be concluded by ministers from the Department for Business,  Energy & Industrial Strategy (BEIS) and the Treasury in the next few weeks.

Macquarie is believed to have made a higher bid for the GIB than its rival,  a consortium called Sustainable Development Capital,  comprising the Japanese trading house Mitsui,  General Electric, and insurance firm John Hancock.

The