Answers.comÂ® is making the world better one answer at a time. The element that makes the strongest material is carbon, and the material which is made is graphene. Thao Hg.
<br /><br /> Solar power is the cheapest renewable energy source for small-scale use, such as pocket calculators, LED lights, and remote (small) electrical appliances. Hydroelectric power is the cheapest renewable energy source for large-scale production. That is, it has the lowest cost to construct and maintain the generating facilities compared to the amount of energy produced.
Now hydro-power is the largest source of renewable energy, providing about 16 per cent of the worldâs electricity. Hydro-power is not used so much at a domestic level because it needs the right site: most people have not got a stream handy. Also it is expensive to install.The term âmicro-hydroâ is used for domestic size systems, and generally refers to those which generate between 5 and 100 kW of power.ow hydro-power is the largest source of renewable energy, providing about 16 per cent of the worldâs electricity. Hydro-power is not used so much at a domestic level because it needs the right site: most people have not got a stream handy. Also it is expensive to install.