Not having to burn gas is cheaper than burning gas. There will be a decade or two of transition with rarely used gas turbines getting their yearly packet in a short amount of time. Eventually other tech will take over, or the gas infrastructure will pare down and be cost optimized for its new role or rare usage.
Europe, and Germany and the UK in particular, are really poorly suited to take advantage of this new cheap technology. If these countries don't figure out alternatives, the countries with better and cheaper energy resources will take over energy intensive industries.
This is not a problem for solar and storage to solve, it's a problem that countries with poor resources need to solve if they want to compete in global industry.