This is the secret flipside of solar power's duck curve: it makes a lot of stupidly energy intensive paths towards non-fossil oil production a lot less stupid if you just have the energy to burn. Think about how in the 2000s we had a weird obsession with ethanol and other biofuels, only to learn that they were merely 40-50% efficient. If your energy mix is predominantly fossil fuels, you're better off just not burning the oil. But if you have solar, suddenly it becomes a good option for energy storage, especially in industries that need the weight properties of chemical fuels (i.e. aircraft, where you HAVE to be able to burn and exhaust your fuel or the plane will be too heavy to land).