The long term is something that we cannot predict but yes, as time passes, most of the current power resources will attain a level from where we will not be ready to use them. This is exactly where substitute electricity sources appear into play and will be one particular of the major driving forces of the planet power requirements. Presently, extremely little tremendous-capacitors in the variety of 7 to 10 watts are commonly available commercially for consumer energy good quality purposes and are frequently found in household electrical units. Growth of bigger-scale capacitors has been centered on electric cars. My websites: solar cells