Operator - TOKYO ELECTRIC POWER COMPANY (TEPCO)
Power Plant Name - Kannagawa Pumped Storage Power Plant
Location - Gunma Prefecture, Nagano Prefecture
Output - 2,820 MW
Effective Head - 653 m
Maximum Turbine Discharge - 510 m3/sec.
Commencement of Operation - 2005*
Upper Dam Name - Minamiaiki Dam
Type - Core wall rockfill dam
Height - 136 m
Crest Length - 444 m
Volume - 7,300X103 m3
Total Storage Capacity - 19.17X106 m3
Lower Dam Name - Ueno Dam
Type - Concrete gravity dam
Height - 120 m
Crest Length - 350 m
Volume - 720X103 m3
Total Storage Capacity - 18.4X106 m3
