Support for businesses with their vigor bills is to beryllium reduced from April, the authorities has confirmed.
Under the caller scheme, firms volition get a discount connected wholesale prices alternatively than their costs being capped arsenic nether the existent one.
Very dense energy-using sectors, chiefly manufacturers, volition get a larger discount than others.
But firms paying nether a definite terms for their vigor wholesale volition not get support.
The caller strategy volition tally until the extremity of March 2024.
The vigor enactment strategy is chiefly utilized by businesses, but is besides for charities, and nationalist assemblage organisations specified arsenic schools and hospitals.
Wholesale state prices are present beneath the level they were earlier Russia's penetration of Ukraine, but inactive 3 to 4 times higher than their semipermanent average.
In its announcement, the authorities said it was scaling backmost the vigor subsidies for the adjacent fiscal twelvemonth to £5.5bn.
The existent strategy had been described arsenic "unsustainably expensive" and was predicted to outgo astir £18.4bn, according to authoritative forecasters.
Chancellor Jeremy Hunt said: "My apical precedence is tackling the rising outgo of surviving - thing that some families and businesses are struggling with.
"That means taking hard decisions to bring down ostentation portion giving arsenic overmuch enactment to families and concern arsenic we are able."