Battery storage is being built right now in the UK and there is a large pipeline of new projects. And scaling up is comparatively easy. It is ridiculously mod

Battery storage is being built right now in the UK and there is a large pipeline of new projects. And scaling up is comparatively easy. It is ridiculously modular, suited to mass production, and piggy-backs on the global electronics industry. I wouldn't get hung up on paring battery storage with a particular generation technology. Just connect it to the grid and let the market decide when to charge and discharge. One good reason for colocating battery storage with renewables is that you get to share the grid connection. That connection can be expensive and will be under utilized due to intermittency. So store some of the energy in batteries and spend less money on expensive AC cables. You can even reverse the flow and take energy from the grid.