TEPCO Electric Energy Museum
The Tokyo Electronic Power Company (TEPCO) has a free museum called the TEPCO Electric Energy Museum (also known as Denryokukan) which was built to celebrate the 50th anniversary of the company. This free attraction has a wealth of information on how important the electrical resourse is to Japan. The museum is in Japanese but there are English language pamphlets avaialble to explain what is going on in the displays.

The centre piece of the five floors is a model of the inside of a thermal neclear reactor, the surrounding displays explain how the system works and nuclear power supplys much of Japan’s needs in a clean and safe manner. There is also a 19 minute video which is ran in English to further explain nuclear power.
Energy conservation and modern living is delt with on one of the floors, with “the Electric Kitchen” here you can see some of the new advances in household gadgetery which help conserve power benifiting both the consumers pocket and our fragile earth’s green house. There are quite a few buttons and interactives to push and learn little more about the environment here. The Electric Kitchen is actually used for cooking demonstrations, so you might be lucky enough to catch a course and sample on of the tasty dishes prepared by the chefs.
The museum is easily accessable from the Hachiko Exit of Shibuya Station, its on the oppisite side of the road to the huge Tower Records store, the building has a gold dome on the roof and is also home to the Cartoon Network Cafe.
The centre is open from 10:00am to 6pm everyday except Wednesdays and public holidays, for further information visit
http://www.denryokukan.com/index.html