Correct.The two principal mechanisms of subsidizing renewables are productions tax credits (PTC) and then renewable portfolio standards that require a certain portion of new generation to be from renewable sources.
PTCs typically allow a tax credit for the plant owners per MegaWattHour (MWH) of generation produced. This MWH credit pushes renewable generation to generate even when it might not be otherwise cost effective to generate. This has created the unique situation where there will extended periods of negative pricing for power. This then sends a market signal that something like a dispatchable coal plant must shut down to let subsidized wind generation generate while the wind is blowing. That works well up until the wind stops when you needed that coal plant online. PTCs will force the negative price as low as their credit amount for example if the PTC is $35 a MWH they will only stop generating at negative $35 a MWH. This displaces reliable coal which costs $12 a MWH. The math here is insane.
Forcing wind plants to turn off in the face of negative pricing would be a rational solution to this, but the greens tell us it is essential so that we develop mechanisms to store that power for later. Battery Storage is crazy expensive and unlikely to change rapidly.
Renewable Portfolio standards are somewhat less disruptive to reliability as they are just a requirement that total output from renewables be a certain percentage. They still force uneconomic investment in crazily expensive generation, but they do not force it to run irrationally.
All told, it is expensive to be green and cost effectiveness discussions are not welcome by advocates.
There was also an ITC alternative, that may have expired.
Battery storage is just that - storage. BESS does not generate electricity. Some folks are not aware of the difference.