Nuclear power

Nuclear power is generated using uranium, which is metal mined in various parts of world. The first large- sc ale nuclear power station opened at Calder hall in Cambria , England , in 1956.Some military ships and submarines have nuclear power plants for engines. In 2009 , 13-14% of the world’s electricity came from  nuclerpower,Also , more than 150 naval vessels using nuclear propulsion have been built , and produces huge amounts of energy from small amounts of fuel , without the pollution that get from burning fossil fuels.

Nuclear fusion reactions have the potential to be safer and generate less radioactive waste than fission. These reactions appear potentially visible, through technically quite difficult and have yet to be created on a scale that could be used in a functional power plant. Fusion power has been under intense theoretical and experimental investigation since the 1950s.

Installed nuclear capacity initially rose relatively quickly, rising from less than 1 gigawatt  (GW)  in 1960 to 100GW in the late 1970s ,and 300 GW in the late 1980s . Since the late 1980s worldwide capacity has risen much more slowly, reaching 360 GW in 2005, between around 1970 and 1990, more than 50 GW capacities was under construction in 2005; around 25 GW of new capacity was planned. More than two-thirds of all nuclear plants ordered after January 1970m were eventually cancelled. A total of 63 nuclear units were canceled in the USA between 1975 and 80.

During 1970 and 1980s rising economic costs and falling fossil fuel prices made nuclear power plants then under construction less attractive. In the 1980s and 1990s, flat load growth and electricity liberalization also made the addition of large new base load capacity unattractive.

The 1973 oil crisis  had a significant effect on countries , such as France and Japan , which had relied more heavily  on oil for electric generation  to invest in nuclear power today , nuclear power supplies about 80% and 30% of the electricity in those countries , respectively…