By Paul Homewood
This chart from the NESO report is worth a look:
In simple terms, the gray bits represent unabated gas generation. Each season gives an illustrative seven-day cross section, ie a typical week.
In winter therefore, there will be days when we need gas to supply typically half or even more of our power. Even in spring, gas will still be needed in large amounts from time to time.
So it is quite wrong to imply, which NESO seem to, that gas will only make a small contribution.
On the contrary, it is absolutely fundamental to the grid.