Martin Lewis has sent a lengthy letter to the Chancellor calling for April's rise in the Energy Price Guarantee to be scrapped.
The financial expert asked Jeremy Hunt to "urgently consider" postponing the 20% rise as it could be even more damaging amidst the current cost of living crisis.
Martin suggested that the additional rise from £2,500 to £3,000 in April could force nearly two million households into fuel poverty increasing the overall number to around 8.4million.
The Money Saving Expert said this was a "frightening" statistic.
Martin explained that any cancellation would have to happen before the March Budget because by then people will have had letters telling them their bills are going up.
He added: “This cannot wait until the budget – in practice, energy firms will need to know much sooner if the planned rise isn’t happening on 1 April, or they are bound to have to communicate to customers that it is coming.”
In November Chancellor announced the cap will be increased to £3,000 for the average household in April rather than stay for two years like previously announced.
However, there is currently no Government energy help past the £400 energy discount which comes to an end in March.
The rise is set to go ahead despite the fact that the wholesale cost of energy has been falling.
Martin said the current Price Guarantee subsidy may only be needed from April to July because the underlying price cap currently looks like it may be cheaper than even the current rate of £2,500 a year for a typical household.
Martin wrote: "This means the provisioned government expenditure on the energy subsidy will be billions less than expected when the plans were made, giving significant headroom to enable a postponement.
"Plus, maintaining a lower Energy Price Guarantee will also help reduce inflation."
Martin took to Twitter yesterday to announce that he had sent the letter and that it had been backed by a vast list of major charities which included Citizens Advice, Fair By Design, National Energy Action, and StepChange.
Energy UK, the trade association for the energy industry, has also come out in support of the call.
The Money Saving Expert has been a major voice during the current cost of living crisis and has frequently placed pressure on the Government to introduce support for households.
He was a key campaigner during the Tory party's leadership race last year to introduce a cap on energy prices and was successful with Liz Truss bowing to pressure after initially declining to commit to support.
Martin will likely continue to put pressure on the Government leading up to the spring budget on March 15.
