A few facts and figures:

The Sun-Earth distance is very close to 150 millions of kilometers. 
It takes 500 seconds, about 8 minutes for the light to travel this distance.

The power of the sun is 38400000000000000000000000000  watts. This equivalent to the power of 400 millions of billions of 1000 Megawatt nuclear power plants.

The earth receives half of a billionth of the sun's power.

My PV system can produce up to 4300 W. This is 0.000000000000000000001 % of the sun's power. This tiny drop of rather easily harvested energy covers currently 80 % of my electricity needs of and will cover 100 % of my needs when an efficient storage mean becomes available.

As of August 20th, 2014 the production reaches 1500 KWh. With this energy I would have been able to boil 15 000 liters of water. This energy has covered 87 % of our electricity needs during the 5 last months.

My personal reflexions:

The sun can fulfill the humanity energy needs for the next 5 billions years. (Hubert Reeves)
Die Sonne shickt uns keine Rechnung (Dr. Franz Alt) - The Sun does not send us any invoice. (Dr Franz Alt)

If the governments had invested more money in long term electricity storage solutions in the past, I bet we would be ready to get rid of fossil and nuclear energy now. 

Solar electricity is produced fully statically (no moving parts) with neither dangerous emissions nor noise. It can be produced close to the consumers and so the transportation losses be reduced a lot.

In the 80's, human beings discovered distributed computing with IBM's  PC  (Personal Computer). I guess that the 21st century man is discovering "Personal Energy", the distributed Energy Production era. 

Think global, act local, get Off-grid - as much as you can.