Mitsubishi Electric: has the energy windfall been wasted?

Has the Spring Statement exposed government policy gaps?
 
Patrick Mooney asks why Rishi Sunak has spent the Energy windfall tax on cash giveaways rather than investing in energy efficiency?
 
Faced with the biggest cost of living crisis in decades, the Chancellor has defended his plans to help us all by saying that the £400 energy bill discount (payable in the Autumn) is the quickest and most cost-effective way of getting help to millions of households.