Sakarya Elektrik Dağıtım A.Ş. was established around the same time as construction began on the Adapazarı facility in 1954, following the foundation of Etibank’s energy group.

Sakarya Elektrik Dağıtım A.Ş., headquartered in Sakarya and providing services to Sakarya and Bolu, became one of the seven general directorates established as a TEDAŞ subsidiary pursuant to the Supreme Planning Council resolution No. 93/T-103 dated November 25, 1993.

TEDAŞ was included in the privatization program pursuant to the Privatization High Council (PHC) resolution No. 2004/22 dated April 2, 2004, as part of the restructuring of electrical distribution institutions based on distribution regions in accordance with the transition to the market scheme in the Turkish electricity distribution system. Subsequently, the distribution areas were re-designated, Turkey was split into 21 electrical distribution regions, and Körfez EDAŞ and Sakarya EDAŞ were merged on March 1, 2005 and restructured as the No. 15 distribution region, covering the cities of Sakarya, Kocaeli, Bolu, and Düzce.

The Republic of Turkey, Prime Ministry Privatization Administration put up 100 percent shares of SEDAŞ for a privatization tender in accordance with Law No. 4046. The PHC also approved the Akkök-Akenerji-ČEZ Consortium, which won the July 1, 2008 tender with a bid of $600 million. The Akkök-Akenerji-ČEZ Consortium took over the management of SEDAŞ with a handover ceremony in Ankara on February 11, 2009.

On this date, AKCEZ Enerji Yatırımları Sanayi ve Ticaret A.Ş acquired 100 percent shares of the company. All 100 percent of SEDAŞ shares belong to AKCEZ.

(SEDAŞ) is a company that provides energy distribution services to 1.6 million consumers and 3.4 million people 24 hours a day in four provinces, 45 districts, 47 municipalities, and 1,441 villages in the Sakarya, Kocaeli, Bolu, and Düzce provinces on a total area of 19,421 square meters.

As part of the investment program for electricity distribution services, SEDAŞ's areas of operation involve building new distribution facilities and increasing capacity, adding facilities to the current main grid, carrying out maintenance and repair work at businesses, assessing connection applications, providing services to electricity consumers based on contracts, reading consumption indexes from meters, supplying lighting services, completing meter change and calibration operations with regard to electricity distribution, fighting against technical and non-technical losses, decreasing the periods and numbers of electrical failures and power outages, and implementing efforts to ensure a continuous supply of electricity.


Our directorate was established around the same time as construction began on the Adapazarı facility in 1954, following the foundation of Etibank’s energy group. Previously, the organization served as a stock room for the energy facilities construction department based in Ankara. Following the transition to the planned period in 1963, it began to be organized at a Responsible Engineering level.

Our organization built energy facilities in the region under the name of the 2nd Region Responsible Engineering, covering the cities of Sakarya, Kocaeli, Bilecik, Bolu, and Zonguldak. From 1965 onwards, it was commissioned to construct electrical facilities in rural area settlements.

Around the same, the Main Grid Installation Department undertook the construction of 15-kV and 35-kV main distribution energy lines. Subsequently, our organization was turned into “Village Electrification 2nd Region Responsible Engineering,” carrying out electrification work only for rural areas. With a gradually rising number of personnel, as well as business volume and capacity, the 2nd Region Responsible Engineering, covering the five cities of Sakarya, Kocaeli, Zonguldak, Bolu, and Bilecik, first became Regional Chief Engineering in 1969, and then, Regional Directorate in 1972. Thereafter, new chief engineering units were opened in the region’s cities as a result of growing business volume and capacity. The chief engineering units that were opened in Zonguldak and Bolu in 1973 and 1975, respectively, were made a directorate in 1977 upon approval of the General Directorate, and subsequently, they left our region. Our Regional Directorate continued to provide services in Sakarya, Kocaeli, and Bilecik, and in 1981, Bolu and Zonguldak once again became a part of us after being relegated to chief engineering.

Following the General Directorate’s electricity distribution services’ organization, and transfer of the Municipality Electricity Operation to us, our organization was first turned into the Electricity Distribution Regional Coordinator to take over, run, and handle distribution services for Municipality Electricity Operations of Sakarya and Kocaeli City Centers between November 1, 1982, and January 1, 1983, and after that date, into the Boğaziçi Electricity Distribution Operations Deputy Directorate.

On June 1, 1983, our organization became the Sakarya Provincial Operations Directorate, under the S.S. Boğaziçi Electricity Distribution Operations Directorate in Istanbul, and continued operations in Sakarya alone.

Pursuant to Turkish Electricity Authority (TEK) resolution No. 109-36 dated September 24, 1985, S.S. Sakarya Electricity Distribution Operations Directorate was established, and in accordance with Decree No. 233, it was made a legal entity on January 1, 1986, and then provided electricity distribution services along with the Sakarya and Kocaeli Provincial Directorates under the Operations Directorate. In 1989, Bolu Provincial Directorate became a part of the operation area; however, Kocaeli and Bolu then left our organization as a result of a 1990-decision to establish an organization in all cities.

SEDAŞ was one of the seven general directorates that were established as a TEDAŞ subsidiary in 1993. The company covered Sakarya and Bolu at the time. When Düzce was made a city in 1999, it became the third city in the coverage area of SEDAŞ. After TEDAŞ was included in the privatization plan in 2004, Körfez EDAŞ and Sakarya EDAŞ were merged in March 1, 2005, and restructured as the No. 15 distribution region, covering the cities of Sakarya, Kocaeli, Bolu, and Düzce.

On February 11, 2009, under a special company status, SEDAŞ was transferred to AKCEZ for 30 years with the transfer of operational rights, starting from 2006. In 2013, SEDAŞ separated the retail electricity sales operations and began providing all of the electricity distribution operations on the principle of efficiency, as well as offering retail electricity sales, invoicing, and consumption collection.


As one of Turkey’s foremost electricity distribution companies, SEDAŞ strives to provide round-the-clock services in Sakarya, Kocaeli, Bolu, and Düzce, offering repair and maintenance operations and supplying superior and uninterrupted electricity energy 24 hours a day by reducing the duration and number of failures.

The duty of SEDAŞ with regard to meter reading of the energy sold in its region involves changing faulty meters upon complaint pursuant to Law No. 3516, and performing the stamp and calibration operations for the meters that have completed the 10-year stamp period. SEDAŞ troubleshoots the structural lines that it connects and that are used by consumers.

As part of the distribution operations, it performs electrical meter reading during the reading periods determined for each meter so as to establish the amount of use.

It also turns on and off the service in accordance with the law for subscribers that are late in payment of debt arising from electricity consumption, when consumers vacate a business or home, and for new subscriptions.

The company performs inspections to prevent the loss and unauthorized use of energy, while mitigating technical and non-technical losses by renewing the main grids, limiting voltage dips, and compensating for the system.

Pursuant to the Regulation on High-current Electrical Installations, it performs tree-trimming and care in order to ensure technical quality and also maintain the lines so as to prevent the trees under and near the power transmission lines from damaging the lines.

SEDAŞ also manages the main grid. It builds and operates automation and SCADA systems to monitor electricity power via a main grid by employing information infrastructure, intervene as soon as possible in the event of a failure, and carry out high-current operations.

Address: Orhangazi Cad. Pk.160 Maltepe 54100 - Adapazarı, Sakarya, Turkey
Phone: +90 264 295 85 00 ALO 186
Fax: (0264) 275 10 48