Very interesting, vey interesting indeed.
If the shortened link does not work use this one:
https://www.forbes.com/sites/christophe ... 63d894402dAnd
this one gives a more in-depth explanation of the Allam Cycle.
I had heard rumblings about this some time ago but it was so far "out there" that it seemed more fantasy than fact. I have now had a chance to do some reading up and it does look promising.
Where it looks to have the most potential (for now) is not in replacing the mega sized coal fired power stations such as Drax, Eggborough or the former Ferrybridge, but with the now defunct city power stations in the 250 - 400 MW size. According to the information from Forbes, and other places, new plants with outputs of about 300MW come in at roughly £225m and can be operational in no time.
If the UK could run them on gasified coal, and as you say, Cromwell, we have loads of coal, then we could conserve the gas and oil reserves we have left and cut down on energy imports of many kinds. We might even be able to produce enough electricity from them to make electric cars more of a reality than they currently are.