https://reneweconomy.com.au/agl-targets-1-4-gw-of-new-big-batteries-to-firm-renewables-and-cash-in-on-price-volatility/
An absolutely massive and increasingly undeniable free rider problem here: major energy co's are spending billions on batteries to cash in on volatile market prices, but have near-zero interest in building the new renewables that will supply bulk demand.