Actually no contest!
Please understand ,I would be greatly pleased if either one produced no pollutants as I am an Asthma sufferer. How ever politicians are only in themselves gaining popularity and money !
I have just read that a car maker in America is busy building a lithium factory that will produce so many lithium cars that they will require a new coal mine to themselves to for see the electrical power.
Once the cars hit the road and need to load up their batteries of course coal will provide most of the power to drive the energy, as hydro power is not available country wide,added to this solar power does not do well on cold and overcast days !
The answer to this problem is of course fuel cells using platinum proton membranes as there are no pollutants. That is why Japan,China and major manufacturers are turning to this source of power! the Chinese government is funding research. the USA seem not interested at this stage!
Go to Stock Trading Trends (See above) for other monthly updates.