100 likes | 264 Views
Nuclear Power. Dennis Silverman, U C Irvine. In the US, 20% of our electricity is produced by nuclear power. There are 103 US nuclear power plants. California related reactors. Diablo Canyon, two reactors. San Onofre, two reactors. ⅓ of Palo Verde 1, 2, & 3 in Arizona.
E N D
NuclearPower Dennis Silverman, U C Irvine In the US, 20% of our electricity is produced by nuclear power. There are 103 US nuclear power plants.
California related reactors Diablo Canyon, two reactors San Onofre, two reactors ⅓ of Palo Verde 1, 2, & 3 in Arizona
California Nuclear energy • Each of the five reactors produces about 1,100 million watts (megawatts) of electricity • This is enough to power one million homes per reactor • Each reactor’s production is equivalent to 15 million barrels of oil or 3.5 million tons of coal a year. • The total 5,500 reactor produced megawatts is out of a peak state electrical power of 30,000 – 40,000 megawatts.
Worldwide Nuclear Power Reactors • There are 440 nuclear power reactors in 31 countries. • 30 more are under construction. • They account for 16% of the world’s electricity. • They produce a total of 351 gigawatts (billion watts) of electricity.
Nuclear Electricity Production by Countries and Regions in Gigawatts (World Total 350 Gigawatts)
Production of Pu in Nuclear Reactors • 239Pu is produced in nuclear reactors. • It also fissions by absorbing a thermal neutron, and on average produces 1/3 of the energy in a fuel cycle. • 239Pu is relatively stable, with a half life of 24 thousand years. • It is used in nuclear weapons • It can be bred for nuclear reactors
Nuclear Weapons to Reactor Fuel • We are buying highly enriched uranium (20% 235U) from the former Soviet Union nuclear weapons for 20 years from 1993--2013 • Converting it to low enriched uranium (3% 235U) for reactor fuel • It will satisfy 9 years of US reactor fuel demand • It comes from 6,855 Soviet nuclear warheads so far
Nuclear Plant Future • The countries of the world are each planning their own course of nuclear plant development or decline • Nuclear power is competitive with fossil fuels • It is non-polluting • Newer designs are being sought to make them more economical and safer • Nuclear fuel reprocessing makes disposal easier • Disposal of high level radioactive waste still being studied