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Press Release Zurich, Switzerland 12-01-2022

4 min read

Hitachi Energy drives digitalization in East Java with the deployment of the first digital substation

Hitachi Energy’s digital substation solution will contribute to the decarbonization of the region’s electricity network

Hitachi Energy has delivered a state-of-the-art 150-kilovolt digital substation which is helping Indonesian utility PT Perusahaan Listrik Negara (PLN Persero) ensure reliable power and better support economic development in East Java, as well as contribute to broader long-term sustainability goals.

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 as part of Indonesia’s efforts to build resilient infrastructure and realize the benefits of industry 4.0.

The increased reliability the digital substation brings will help drive further economic growth and investment in the East Java Province, which makes up almost 15 percent of national gross domestic product, the second highest contributor after the capital, Jakarta. 

The digital substation also supports Indonesia’s transition to a low-carbon future by seamlessly integrating renewable energy and contributing to the decarbonization of the region’s electricity network. Built on an area of 1.5 hectares, it is the first and largest digital substation of its kind in East Java, Indonesia. The project was launched and completed during a challenging 2020. 

“This project is another example of how digitalization is playing a key role in shaping power systems and reaffirms our position as a partner of choice for advancing a sustainable energy future in Indonesia,” said Massimo Danieli, Managing Director Grid Automation at Hitachi Energy. “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.”  

“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. "In addition, this digital substation also allows for improved reliability, integration of new, cleaner forms of energy, and delivery of energy services in a smarter and safer way”. 

The deployment of digital equipment and technology in PLN’s Sidoarjo substation enables lower operational and maintenance costs and limits electrical risk with the use of fiber optic cable rather than copper for operational data exchange. Digital substation technology from Hitachi Energy enables a reduction in space and therefore on-site construction, providing KIS a dynamic, safer and more reliable power network. 

The brand-new substation at KIS is based on the latest communication protocols for control, protection and automation. The use of a process bus communication network enables 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 MicroSCADA power automation solution, from which PLN can get intelligent and automated results, thereby enhancing the availability and resilience of its power infrastructure.

MicroSCADA, along with the latest generation of remote terminal units (RTU), protection devices and merging units, enables PLN to improve the reliability and efficiency of its operations. Centralized monitoring enables disturbances to be identified and addressed quickly, thereby reducing the impact on operations and minimizing the disruption from failure in any part of the network. This is particularly important to ensure the stable supply of electricity to the industrial estate and to increase reliability by sharing the energy load and distribution between the regions of Bangil and New Porong. 

About Hitachi Energy


Hitachi Energy is a global technology leader that is advancing a sustainable energy future for all. We serve customers in the utility, industry and infrastructure sectors with innovative solutions and services across the value chain. Together with customers and partners, we pioneer technologies and enable the digital transformation required to accelerate the energy transition towards a carbon-neutral future. We are advancing the world’s energy system to become more sustainable, flexible and secure whilst balancing social, environmental and economic value. Hitachi Energy has a proven track record and unparalleled installed base in more than 140 countries. Headquartered in Switzerland, we employ around 38,000 people in 90 countries and generate business volumes of approximately $10 billion USD.

About Hitachi, Ltd.

Hitachi, Ltd. (TSE: 6501), headquartered in Tokyo, Japan, contributes to a sustainable society with a higher quality of life by driving innovation through data and technology as the Social Innovation Business. Hitachi is focused on strengthening its contribution to the Environment, the Resilience of business and social infrastructure as well as comprehensive programs to enhance Security & Safety. Hitachi resolves the issues faced by customers and society across six domains: IT, Energy, Mobility, Industry, Smart Life and Automotive Systems through its proprietary Lumada solutions. The company’s consolidated revenues for fiscal year 2020 (ended March 31, 2021) totaled 8,729.1 billion yen ($78.6 billion), with 871 consolidated subsidiaries and approximately 350,000 employees worldwide. For more information on Hitachi, please visit the company's website at


Rebecca Bleasdale

Head of External Communications, Content & Media Relations

+41 78 643 26 13