Inspiring.
But he's more right than the interviewer, who is mixing up retail and wholesale, particularly with his supermarket analogy.
The 78% tax isn't on retail bills. It's on UK producers. They make up about 0.8% of the world gas market, so while reducing their taxes might make them more profitable, it's unlikely to have more than a tiny effect on the wholesale prices that our retail companies pay for their gas.
There are arguments about it disincentivising investment, and added transport costs for gas that's produced further away, but the 78% itself doesn't directly have much effect on our retail bills. I assume some people will come away from that thinking that there could be a huge reduction in our bills if we stopped it.
The supermarket analogy is plain wrong. It's not like taxing retail supermarkets. It's like taxing 0.8% of their suppliers for each product they sell. The other 99% we have no control over. That might marginally raise the price of each product, but by a tiny fraction of 1%.
