( CNN ) -- Anything can still happen at the quake-stricken Fukushima Daiichi nuclear power plant at Japan , but experts are hopeful that the situation will stabilize . In the best-case scenario , electrical power and cooling would be restored to all of the six units of the plant , said Tom Kauffman , spokesman for the Nuclear Energy Institute , a policy organization of the nuclear energy and technologies industry in Washington . Restoring electric power is essential to stabilizing the plant , said Michael Golay , professor of nuclear science and engineering at the Massachusetts Institute of Technology . Power would ensure that the water can be provided to cover the fuel . Workers hope to install a crucial panel at an annex building , which was not severely affected by last Friday 's post-earthquake tsunami , for a new power supply system that should be finished Friday morning , an official from the Tokyo Power Company said Friday morning . The improvised power system , using 1.5 kilometers total of cable , is expected to provide electricity to power the cooling systems for the Nos . 1 and 2 reactors at the plant . Also , engineers got an emergency diesel generator for Unit 6 running , and it is supplying power to Units 5 and 6 , Japan 's Nuclear and Industrial Safety Agency said Friday . Water injection to the spent fuel pool was continuing . `` Obviously what we 're hoping for is that they will bring the various cooling problems under control in the very near future , '' said Ian Hutchinson , professor of nuclear science and engineering at Massachusetts Institute of Technology . Once the fuel rods are submerged in water , the large releases of radioactive materials should come to an end , Hutchinson said . When the cooling water is restored to the spent fuel pools , and the reactor is cooling and the flooding can be maintained , expectations are for a stabilization of the situation , and a major reduction of radiation emissions , he said . `` That 's when we 'll be able to say , 'We 've got this under control , ' '' Hutchinson said . Once it 's been under control for a week or two , things may stabilize . The whole cleanup would take a matter of months or even years , Hutchinson said . And the site wo n't be usable again , said Gary Was , professor in the department of materials science and engineering at the University of Michigan . Even in the best case scenario , there will be melted fuel in the reactor that 's not going to be usable , Was said . A real concern is the after-heat arising in the fuel rods , which need to have water cooling them , Hutchinson said . Unless there are much bigger releases and contaminations near the site , people may one day be able to safely get closer to Fukushima Daiichi than the current established evacuation zones , Golay said . The United States government has instructed Americans to stay 50 miles from the plant ; for Japanese citizens , the evacuation zone is only about 12 miles . `` The fact that you have differing policies does n't mean the U.S. thinks it 's more dangerous , '' Golay said . It 's simply because the U.S. is not in a position to help its citizens in Japan , he said . The situation at Fukushima Daiichi is worse than Three Mile Island , the Pennsylvania plant that suffered a partial core meltdown in one of its reactors in 1979 , Golay said . That 's because at Fukushima Daiichi there 's more radioactive material involved , and it 's less contained he said . At the Chernobyl disaster , the world 's worst nuclear power plant accident , which occurred in 1986 , the facility had to be sealed off with a large concrete sarcophagus . It 's hard to say whether this will need to happen at Fukushima Daiichi , experts say . It all depends on the extent of the contamination , which is unknown , Was said . Sealing off Three Mile Island was also discussed at the time of that disaster , Kauffman said , but instead the reactor was cleaned out , with the damaged fuel and core debris shipped off-site and put into storage . `` We 're still in the wait-and-see mode , '' Kauffman said .
Experts : - The first thing to do is to check if the device you want to use has a USB Type-C port. Work is ongoing to establish a new power supply system , says TEPCO . It 's unknown whether the plant will need to be sealed off , as Chernobyl was .