Cheap electricity is great for consumers, but not necessarily for producers. Some people might say, "well, screw producers," but even if you take profit out of the equation, electric utilities need to be able to at least cover their expenses, and you can't do that if the amount of electricity you're generating relative to the demand is so high the price actually goes negative (meaning the utility is actually paying the consumer). Again, that's good for consumers, but I'm sure you can see how that's not a sustainable business model.
Fully agreed: let's eliminate business from the issue, and create national, for-service electric grids, that produce the cheapest renewables at all possible times in the most efficient way possible, disregarding hourly profit and taking into account exclusively the cost in €/kWh produced over the lifetime of each energy source.
Suddenly it's obvious that the problem isn't with renewables, but with organising the electric grid as a market
Public utilities still need to cover their expenses, and they're not going to be able to do that if they're charging negative rates in the middle of the day and have no electricity to sell once the sun goes down.
I'm not sure what you mean. Are you saying that public utilities should be funded from taxes instead of charging for service? I don't think having tax payers pay public utilities to overproduce electricity is going to fix the problem, especially since no amount of tax dollar funding can allow utilities to produce solar electricity when the sun isn't shining.
The solution is obviously not exclusively from pricing models, we need other energy sources than renewables for the time being, that doesn't mean we need to have market-based electricity pricing.
Imagine the state installing as many solar panels as society, guided by experts, democratically decides it wants, basically deciding as a society the energy mix instead of hoping that companies will install enough if we bribe them enough with taxes to do so, and if it's profitable. Then, it decides a pricing model based on a mixture of subsidy and incentivising consumption during production hours.