[data_maan]

There is nothing that needs to be developed for renewables per se, it is already available: https://en.m.wikipedia.org/wiki/100%25_renewable_energy

It just needs to implemented!

Just imagine how much the politicians suck: Science has given them the solution for the energy problem, science has showed how to even make it economically, and has done that already years ago. All politics would have to do is implemented. But they cannot even do that ...

[Lyapunov]

Hydro isn't available everywhere and wind as well as solar are unreliable. Energy storage in the required dimension is an unsolved problem too. So whatever you're trying to say here is unfounded.