Tanzania Electric Supply Company Limited (TANESCO) is a parastatal organization under the Ministry of Energy. The Company generates, transmits, distributes and sells electricity to Tanzania Mainland and sells bulk power to the Zanzibar Electricity Corporation (ZECO) which in turn sells it to the public in islands_ Unguja and Pemba. TANESCO owns most of the electricity Generating, Transmitting and Distributing facilities in Tanzania Mainland.
The German colonialists established the first public electricity supply in Tanzania (which was then called Tanganyika) in 1908 at Dar es Salaam. It served the railway workshops and a part of the town where the colonialists were mostly staying. When the Tanganyika territory was mandated to Great Britain in 1920, a Government Electricity Department was formed to take over and operate the public supplies left by the Germans.
In 1931, the Government handed over the undertaking at Dar es Salaam and those elsewhere upcountry (Dodoma, Tabora and Kigoma) to private enterprises. One of these companies was the Tanganyika Electric supply Company Ltd. (TANESCO) which was established on 26th November 1931 and the other company was the Dar es Salaam and District Electric Supply Company Ltd (DARESCO).
TANESCO commenced operations in 1933 by operating a diesel power station at Kange in the outskirt of Tanga; by 1936 the company had constructed a dam 90m long across the Pangani River and had commissioned two generators totaling 5MW. Concurrently with this, over 400km of supply lines were erected. In 1947, 1952 and 1959 three more sets were installed, bringing the total capacity up to 17.5Mw, its present value.
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Artisan/Linesman – TANESCO Shinyanga