The redundancies exclude frontline call centre staff, the Times said citing sources. The company employs 9,400 people in the UK.

E.ON, which is one of Britain's big six energy suppliers, did not immediately respond to a request for comment outside regular business hours.

The British government asked energy regulator Ofgem to put the price cap on to combat what it has called "rip off" energy prices.

The Competition and Markets Authority found that utilities had overcharged some British households a total of 1.4 billion pounds ($1.84 billion) a year on average from 2012 to 2015, prompting the government to act.

Ofgem is required to cap prices on Standard Variable Tariffs offered by the six dominant energy providers for households using gas and electricity which studies have shown were far higher than other tariffs on offer.

Last month, E.ON said it would raise prices for British customers taking both gas and electricity by 4.8 percent from Aug. 16, due to an increase in wholesale energy costs by more than 20 percent since March, largely due to the impact of extremely cold temperatures earlier this year depleting European gas storage.

($1 = 0.7606 pounds)

(Reporting by Rama Venkat Raman in Bengaluru; Editing by Leslie Adler)