That term “Renewable energy” is a misnomer. Once energy is converted ( goes into heat) it’s gone. You could say, in a way, that hydroelectric power is renewable in that water can be used again further on down stream. But it’s the same water, it wasn’t converted into something else and used for power; you could argue that water converted into steam can be renewed but it took an energy source to do that. Hmm, now if water turned a turbine that made electricity that ran an electric furnace that heated water into steam to do work of some sort but then why bother, just use the electricity water produced in the first place. My head hurts, gonna lay down for a bit.
You make an interesting point about the nature of energy. Hydrocarbon energy buried in the earths crust such as coal and oil are actually the buried remains mostly of plant life and algae from eons ago with some animal matter as well. The plant life and algae used energy from the sun to grow. That energy was converted to biomass and stored underground. So in a sense nearly all hydrocarbon energy is in reality solar power. Your F350 Super Duty Pick-up truck truly is a solar powered vehicle.