The electric power plant is situated at Sultanköy in Marmara Ereğlisi of Tekirdağ Province,[1] around 100 km (62 mi) west of Istanbul.

[2] The power plant and its electrical substation were built by the Swedish ASEA Brown Boveri (ABB) on a build–operate–transfer (BOT) basis, and went in service in 1999.

The plant was owned by the Turkish private power producer Uni-Mar Co., which is co-owned by the Japanese Marubeni and the Belgian Unit International,[1] and operated by Engie.

[4] Natural gas-fired in the power plant is obtained from the state-owned crude oil and natural gas pipelines and trading company BOTAŞ Petroleum Pipeline Corporation (BOTAS), which operates the neighboring LNG storage facility.

[2] The ownership of Unimar Power Plant passed to the state-owned electricity generation company EÜAŞ in 2019 after the end of the BOT contract and its name was changed to Tekirdağ Doğalgaz Kombine Çevrim Santralı.