It's a little difficult
The solar power we often talk about uses silicon photovoltaic cells made of monocrystalline silicon or polycrystalline silicon to produce electricity. It directly converts light energy into electrical energy. most efficient solar power generation today. Method
Solar water heaters directly use thermal energy from sunlight to heat water
Of course, energy can be converted, and energy Thermal energy can also be converted into electrical energy. You just need to convert it one or more times. If you really want to change it, it's possible to use the low-end thermal power from the water heater and add a steam turbine to spin it to produce electricity, but that seems to require a lot of effort. 'investment, and then there will be an extremely small amount of electricity, I don't thinkthat it's worth it.
Of course, I'm just saying that based on current technology, it's unclear what new technology will be available in the future