Despite the Fukushima nuclear disaster, Indonesia is unlikely to halt its plan to build its first nuclear-power plant due to an electricity crisis. A nuclear-energy development head at Indonesia's National Nuclear Energy Agency said that concerns about a disaster such as Japan's were misplaced; plants in Indonesia would use more advanced technology than the four-decade-old reactors at the Fukushima plant in Japan. Modern plants are designed to operate in the circumstances of total power failure like that experienced at Fukushima, relying on passive safety systems that do not require electricity to function.