INDONESIA – Hitachi Energy has delivered a 150 kV digital substation for the Indonesian utility PT Perusahaan Listrik Negara (PLN Persero) in East Java.

The East Java and Bali Development Central Unit (UIP JBTB) substation connects the 200-hectare Sidoarjo Industrial Estate (KIS), which includes large manufacturing companies, to PLN’s grid.

Built on an area of 1.5 hectares, it is the first and largest digital substation of its kind in the East Java Province. The use of a process bus communication network enables the continuous bidirectional exchange of digital data between primary equipment, protection equipment, the SCADA system, and the regional control center. Station-level control is achieved through Hitachi Energy’s power automation solution, the manufacturer said in a press release.

The digital substation supports Indonesia’s transition to a low-carbon future by integrating renewable energy and contributing to the decarbonization of the region’s electricity network.

“As a trusted partner to PT PLN (Persero), the nation’s utility company, we will continue to support the development of the country’s energy infrastructure and its digital transformation,” said Massimo Danieli, Managing Director Grid Automation at Hitachi Energy.

“Thanks to Hitachi Energy, with this digital substation, operators can retrieve real-time data about electricity flowing in the network so they can anticipate and make decisions faster. This is important for the resilience and stability of the electricity network, especially to support this very strategic industrial area in East Java," said Djarot Hutabri, General Manager of the East Java and Bali Development Central Unit.

The project was launched and completed in 2020.

Source: Hitachi Energy