Creating Mini Pumped-Storage Power Plant with Windmill for 100kWh Storage: Cost & Feasibility

Pumped storage power stations should be used on a large scale in closed mines where the conditions are right. But for this to work, energy storage must also be used, but mechanical overload storage, which in conjunction with photoelectric power will close the energy production cycle. This is the solution for miners to become clean energy producers. Why are such power plants blocked in Poland? Why are scientific institutes not commissioned to carry out energy production plans for the mines that are being closed? Why is this government doing nothing in this regard? Photovoltaics are small next to this, as mentioned above. It's time for big energy production. If no one from the government has an idea for the Polish energy industry, let them leave the government and not destroy Poland with their ignorance and powerlessness to develop the country. There are more energy generation systems in Poland, but here silence, impotence. How long will we be poor in our own country? It is time for great development.

Moderated By ArturAVS:

3.1.19. Publishing entries in archive discussions. Archived discussions are understood to be discussions marked by the Service Provider as: Archive Topic or Archive Thread.

.

And has the colleague checked how old this topic is?
Still that spelling - worth checking before posting because it's hard to understand.
As far as the subject matter is concerned, the potential energy of a mass lowered into a mine shaft can be calculated from the formulae given in physics textbooks of rather primary school (at least there used to be such material) so you can calculate how much energy one tonne lowered into a 1km shaft (probably some of the deeper levels of our mines) can store.
There have already been several topics about such gravitational energy storage - it's worth searching.
Pumped storage power stations pump huge amounts of water, where each cubic metre is a tonne of water. See the data for Żarnowiec or another such power station.
If you think it's such a good business, why don't you invest yourself? Why should the government do it for you also with my money?