What are some developments for solar and wind generators?

I need this information for a science project I am doing and I can’t find any information. Help please?

What is the price tag on a wind farm for generating energy?

I was wondering about the total cost of building a wind farm or even a solar farm. What would the initial investment be?

How to get into wind-power field?

I graduated from college 2 years ago, and my degree has proven mostly useless.

I’m 25, and would like to somehow work for a power company maintaining wind turbines. I like the green renewable aspect of it all. Any ideas on how to get a job in the industry?

how many Men or Man hours does it take to construct a Commercial Wind Turbine?

I’m trying to figure out how many jobs the construction of one Large (Commercial) Wind Turbine would create,

Any answers are greatly appreciated,

Thanks