Kawaguchi Dam Natural Energy Museum(Kawaguchi Ene-Myu)

Must See!

Explore the exhibition of futuristic objects like digital art, robots and more!
Handicraft workshops / Exhibition location:Environment study room

Available on Saturdays, Sundays, national holidays, and school vacations.
These workshops are centered on including the participation of small children. Please check the schedule at the online event page.
*Costs vary per workshop according to the materials necessary.


Miniature Hydroelectric Digital Display / Exhibition location:Outdoor exhibition


There is a miniature hydroelectric facility on the way to the museum from the the parking lot. You can watch water flowing through the turbine. The amount of electricity generated by the facility is shown on the digital display board.


Water Turbine Runner / Exhibition location:Outdoor exhibition

waterwheel_runnerOn display are two full-sized turbine runners used for the water power generation at dams. You can touch and imagine how powerful the water flow is.

Kawaguchi Power Plant: Kaplan turbine runner
      Weight: 6t / unit
      Amount of water used: up to 70㎥ / s

Hinotani Power Plant: Francis turbine runner
       Weight: 4.4t / unit
       Amount of water used: up to 60㎥ / s


Solar Power Digital Display Board / Exhibition location:Outdoor exhibition

guidePaneruPVLocated across the road from the museum is a rooftop solar panel on the repair facility. Depending on weather conditions, you can check how much electricity is being generated.


Miniature Windmill Electric System / Exhibition location:Outdoor exhibition


In front of the museum is a savonius wind turbine and a propeller windmill. Both are hybrids with solar panels and revolve smoothly.


Hand-Powered Information Board / Exhibition location:Outdoor exhibition

guidePaneru_damTurn the hand generator crank to hear the audio guidance of the museum and Kawaguchi Dam.


Kawaguchi Ene-Myu Forest / Exhibition location:

Kawaguchi Ene-Myu Forest is located adjacent to Aiai-land. You can enjoy it at events such as thinning experience, forest walk, and woodworking workshop.


Kawaguchi Dam



About Kawaguchi Dam
Kawaguchi Dam is located on the Naka River (primary flow channel: 125km, contributory area 880sq. kilometers), the second major river in Tokushima. Sakashu Power Plant (Ottachi Dam), Hinotani Power Plant (Nagayasuguchi Dam), and Kawaguchi Power Plant (Kawaguchi Dam) were built in conjunction with the integrated river development implemented for flood control and water utilization. When Hinotani Power Plant hits peak power generation, the volume of water used for generating power fluctuates depending on how much power is generated. Kawaguchi Dam was built as a regulating reservoir to alleviate the flow fluctuation at the lower reach. The effective capacity of the reservoir is 950,000 cubic meters and the water level is adjusted between EL93.50 meters and 95.00 meters.

Mechanism of Water-power Generation
Water power generates electricity by utilizing the force of falling water turning a water turbine directly connected to the generator. This form of natural energy is beneficial since it uses the naturally created force of water instead of CO2 and waste-producing fossil fuels.

Kawaguchi Power Plant
Kawaguchi Dam produces hydroelectric power at 11,700 kilowatts of power per second per 70 tons of water used. A Kaplan turbine (witch has adjustable blades) is used at Kawaguchi Dam to allow for adjustments in correspondence volume fluctuations.