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.
Look at France which is 75% nuclear and has the cheapest electricity in Europe with 8 cents per kWh compared to Denmark's 40 cents. India stated in August 2012 that it would cost about Rs.8 for producing a unit of electricity using solar energy, as against Rs. 2.55 using nuclear energy.n average fuel for nuclear power plants make up around 25% of the cost of production which is in contrast to coal, oil and natural gas plants where fuel is 80% of the cost of production.