PV Solar : literally turns sunlight directly to electricity

Wind: A blade rotates a generator

Coal: needs to be mined, transported, pulverized then burned in a 10 storey-high oven to filled with high pressure tubes reaching temperatures of 600°C containing expensive treated water to rotate a blade to rotate a generator.

Edit: I didn't even realise how bullshit the rest of this comment is. Nuclear Power plants take on average 10 years of construction before operating