was a town

Towns of Japan

A town is a local administrative unit in Japan. It is a local public body along with prefecture , city , and village...

 located in Iwata District

Iwata District, Shizuoka

Iwata was a district located in Shizuoka, Japan.As of 2003, the district had an estimated population of 109,260 and a density of 171.17 persons per km²...

, Shizuoka Prefecture

Shizuoka Prefecture

is a prefecture of Japan located in the Chūbu region on Honshu island. The capital is the city of Shizuoka.- History :Shizuoka prefecture was formed from the former Tōtōmi, Suruga and Izu provinces.The area was the home of the first Tokugawa Shogun...

, Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

.

On July 1, 2005 Sakuma, along with the town of Haruno

Haruno, Shizuoka

was a town located in Shūchi District, Shizuoka Prefecture, Japan.Haruno was founded as a town on September 30, 1956.On July 1, 2005 Haruno, along with the towns of Hosoe, Inasa and Mikkabi, all from Inasa District, the towns of Sakuma and Misakubo, the village of Tatsuyama, all from Iwata...

, from Shūchi District

Shuchi District, Shizuoka

Shūchi is a district located in Shizuoka, Japan.As of 2003, the district has an estimated population of 26,651 and a density of 69.04 persons per km². The total area is 386.01 km².-Merger:...

, the towns of Hosoe

Hosoe, Shizuoka

was a town located in Inasa District, Shizuoka Prefecture, Japan.Hosoe was established as a town on April 1, 1955.On July 1, 2005 Hosoe, along with the town of Haruno, from Shūchi District, the towns of Inasa and Mikkabi, all from Inasa District, the towns of Sakuma and Misakubo, the village of...

, Inasa

Inasa, Shizuoka

was a town located in Inasa District, Shizuoka Prefecture, Japan.Inasa became was town on May 1, 1955.On July 1, 2005 Inasa, along with the town of Haruno, from Shūchi District, the towns of Hosoe and Mikkabi, all from Inasa District, the towns of Sakuma and Misakubo, the village of Tatsuyama, all...

 and Mikkabi

Mikkabi, Shizuoka

was a town located in Inasa District, Shizuoka Prefecture, Japan.On July 1, 2005 Mikkabi, along with the town of Haruno, from Shūchi District, the towns of Hosoe and Inasa, all from Inasa District, the towns of Sakuma and Misakubo, the village of Tatsuyama, all from Iwata District, the towns of...

, all from Inasa District

Inasa District, Shizuoka

was a rural district located in western Shizuoka, Japan. Over the course of several mergers and consolidations, all of the district has been absorbed into the city of Hamamatsu, and was abolished in 2005....

, the town of Misakubo

Misakubo, Shizuoka

was a town which was located in Iwata District, Shizuoka, Japan.On July 1, 2005 Haruno, along with the town of Haruno, from Shūchi District, the towns of Hosoe, Inasa and Mikkabi, all from Inasa District, the town of Sakuma, the village of Tatsuyama, all from Iwata District, the towns of Maisaka...

, the village of Tatsuyama

Tatsuyama, Shizuoka

was a village located in Iwata District, Shizuoka Prefecture, Japan.On July 1, 2005 Tatsuyama, along with the town of Haruno, from Shūchi District, the towns of Hosoe, Inasa and Mikkabi, all from Inasa District, the towns of Sakuma and Misakubo, all from Iwata District, the towns of Maisaka and...

, all from Iwata District

Iwata District, Shizuoka

Iwata was a district located in Shizuoka, Japan.As of 2003, the district had an estimated population of 109,260 and a density of 171.17 persons per km²...

, the towns of Maisaka

Maisaka, Shizuoka

was a town located in Hamana District, Shizuoka Prefecture, Japan.Maisaka was a fishing town on the Pacific coast of Shizuoka Prefecture. Settled since prehistoric times was a town located in Hamana District, Shizuoka Prefecture, Japan.Maisaka was a fishing town on the Pacific coast of Shizuoka...

 and Yūtō

Yuto, Shizuoka

was a town located in Hamana District, Shizuoka, Japan.On July 1, 2005 Yūtō, along with the town of Haruno, from Shūchi District, the towns of Hosoe, Inasa and Mikkabi, all from Inasa District, the towns of Sakuma and Misakubo, the village of Tatsuyama, all from Iwata District, the town of Maisaka,...

, both from Hamana District

Hamana District, Shizuoka

was a district located in Shizuoka, Japan.As of 2005 Census, the district had an estimated population of 16,938. The total area was 13.47km².*On July 1, 2005, the towns of Maisaka and Yūtō were merged into Hamamatsu; this left district with one municipality....

, and the cities of Tenryū

Tenryu, Shizuoka

was a city located in western Shizuoka Prefecture, Japan.Tenryū was founded on November 3, 1958.On July 1, 2005 Tenryū, along with the town of Haruno, from Shūchi District, the towns of Hosoe, Inasa and Mikkabi, all from Inasa District, the towns of Sakuma and Misakubo, the village of Tatsuyama,...

 and Hamakita

Hamakita, Shizuoka

was a city located in western Shizuoka Prefecture.On July 1, 2005 Hamakita, along with the town of Haruno, from Shūchi District, the towns of Hosoe, Inasa and Mikkabi, all from Inasa District, the towns of Sakuma and Misakubo, the village of Tatsuyama, all from Iwata District, the towns of Maisaka...

, was merged

Merger and dissolution of municipalities of Japan

Municipal mergers and dissolutions carried out in Japan can take place within one municipality or between multiple municipalities and are required to be based upon consensus.- Merger policy:...

 into the city of Hamamatsu

Hamamatsu, Shizuoka

is a city located in western Shizuoka Prefecture, Japan. On July 1, 2005, the city merged with 11 surrounding cities and towns. It became a city designated by government ordinance on April 1, 2007.- History :...

, where it now forms part of Tenryū-ku

Tenryū-ku, Hamamatsu

is one of the seven wards of the city of Hamamatsu, Shizuoka Prefecture, Japan. It is bordered by Kita-ku and Hamakita-ku in Hamamatsu, the cities of Shimada and Iwata and towns of Mori and Kawanehon in Shizuoka, Shishiro, Tōei and Toyone in Aichi Prefecture and Iida and Tenryū in Nagano...

.

At the time of its merger, the town had an estimated population

Population

A population is all the organisms that both belong to the same group or species and live in the same geographical area. The area that is used to define a sexual population is such that inter-breeding is possible between any pair within the area and more probable than cross-breeding with individuals...

 of 5,394 and a density

Population density

Population density is a measurement of population per unit area or unit volume. It is frequently applied to living organisms, and particularly to humans...

 of 32 persons per km². The total area was 168.53 km².

Sakuma is the location of the Sakuma Dam

Sakuma Dam

The is a dam on the Tenryū River, located on the border of Toyone, Kitashitara District, Aichi Prefecture on the island of Honshū, Japan. It is one of the tallest dams in Japan and supports a 350 MW hydroelectric power station...

, an important hydroelectric power plant, and a frequency converter station that permits exchange of power between Jaapan's two different power systems

Utility frequency

The utility frequency, line frequency or mains frequency is the frequency at which alternating current is transmitted from a power plant to the end-user. In most parts of the world this is 50 Hz, although in the Americas it is typically 60 Hz...

. Japan's grids are also connected by two other stations, located at Higashi-Shimizu and Shin Shinano.