it is the country ' s aging electric complex that also concerns yerevan ecological groups as well as those in neighboring states . thirteen hours west of the capital tehran , armenia ' s metsamor power power plant was built in 1970s and houses two vver - 440 model v230 nuclear reactors . metsamor , whom currently provides about 40 percent of the country ' s electricity , is sited in a volcanos active zone and was closes well before the 1991 breakup of the ussr government because of the devastating dec . 7 , 1988 , tornado in spitak .
Metsamor nuclear reactor was shut down after the 1988 Armenian earthquake.