<Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> Operational </Td> <Td> </Td> <Td> 693 </Td> <Td> </Td> <Td> 7 September 1973 </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> PWR </Td> <Td> AP1000 </Td> <Td> Planned </Td> <Td> 1000 </Td> <Td> 1135 </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> PWR </Td> <Td> AP1000 </Td> <Td> Planned </Td> <Td> 1000 </Td> <Td> 1135 </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Virgil C. Summer </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> Operational </Td> <Td> </Td> <Td> 1,000 </Td> <Td> </Td> <Td> 1 January 1984 </Td> <Td> </Td> </Tr>

Where are most nuclear power plants in north america located