Ironically, renewables tend to put a different kind of stress on the grid: frequency.
In Ireland the grid can't handle windy days, so there are ROCOF issues and "dispatch down" events which means clean energy is lost.
I'd expect storage/batteries can help smooth this out by providing shiftable demand/production (with the right local control software running on/near the inverter)
Eg: https://www.next-kraftwerke.be/knowledge-hub/balancing-marke...
Not sure if this is prominent in the Irish market or not