Not quite, battery storage is feasible and converts solar into a dispatchsble resource that is even better than baseload. You could run solar+batteries as baseload, but it's less desirable than fully dispatchsble.

And as the report says, there's 9.4GW of batteries to go with the 29GW of solar. As more solar is installed on the grid, the ratio of battery to storage will increase, to make sure that the energy is delivered at the right time. But we are in the early days of solar deployment, so not much storage is needed.

So there is a lot of reason for rejoicing at this news.