Yes, those incentives exist to try and shape demand. But in practice, people rarely take advantage of them. And some things really can't be shaped. The pumps that deliver your water cannot have their demand shaped, unless you're willing to go without running water for some hours of the day.
>in practice, people rarely take advantage of them
Overproduction is still not that common. These days wind and solar mostly just provide power that would have otherwise been produced by natural gas even when operating at peak capacity.
It is getting off the ground though. The UK has an energy tarriff popular with electric car owners for this reason. They can occasionally get paid to charge their cars. This type of thing will only become more common.
>And some things really can't be shaped.
Obviously not. Nonetheless pretending that all renewable intermittency has to be made up for with expensive lithium ion batteries is backwards thinking.
Then our transition to solar + wind needs to include the cost of installing a septic tank and water reservoir in every household. And a thermal battery for heating. And an electric battery for lighting. And all the other things we'll need to do to accommodate an unreliable energy grid.
