recently a group of solar energy reresearchers from japan arrived to look at seerl power use in homes. it's conceivable japan would use solar power energy in the future so it won't have to rely on conventional electrical system. it will be possible to introduce similar systems in japan if homeowners, builders and building management work with authorities to promote such efforts. >> using solar power to create a constant indoor climate, it's one way the japanese government could deal with its energy crisis and at the same time reduce its dependence on nuclear energy. nhk world, vienna. >> welcome back to your weather update. now we will look at the wet weather heading in towards japan today. we have a couple tropical systems here. this is heading out to sea so this won't pose a problem. but this one, tropical typhoon roke now. that combined with it will bring heavy showers across japan today. real pie for much of the country. we will be talking about ample amounts of rain specifically along the specific side of southern japan. that will include areas prone to landslide. it'll be defini