PV Gap

Deanna Said:

How does Wind, Solar, hydro, Bio power, and Geothermal used today?

We Answered:

This is a very broad question. The broad answer is they all are used to generate electricity. In turn, this electricity is fed to the grid to supply homes, businesses and industries. One thing to note, depending on the state, these sources are considered renewable and some percentage of all the power used in a state may be required to be from these sources.
As far as examples, there are power plants that use these sources. California has at least one example of each kind of power plant.

Miriam Said:

solar enrygy production in the u.s vs another country? (10 pts)?

We Answered:

Years ago it was promoted for air and water heating (pools, spas, HVAC). Then the technology was crude, and the construction materials were cheap.
Now, programs are for power production, either photovoltaic (solar electric cells) or by steam generation for turbines.
Germany and Spain seem more advanced than the USA