What form of energy for example wind, water or solar energy and the efficiency

What form of energy for example wind, water or solar energy and the efficiency
1
What is the most efficient greatly depends on for example how much the sun shines or how much the wind blows.
 Regional metereologic information can tell a lot about what's the best to use.

Or maybe there is a river nearby where a dam and or normal turbines can be placed.

2
How much it costs to place a windmill and how much does it produce.
And how many solar panels could be placed from this money and how much could they
produce.
And what are the durabilities.


Written by Jeffrey Koelewijn