ABB and Hitachi have announced an agreement to form a joint venture for high voltage direct current (HVDC) system solutions in Japan. The new entity, to be based in Tokyo, will be responsible for the design, engineering, supply and after-sales services related to the DC system of HVDC projects bringing ABB’s latest technologies to the Japanese market where Hitachi will be the prime contractor.
Hitachi and ABB will take equity interests of 51 percent and 49 percent respectively. This is the first step of a strategic partnership between the two companies to contribute to the evolution of Japan’s power network. Hitachi and ABB will explore further strengthening of the relationship and address opportunities to widen the scope for future collaboration.
The joint venture is expected to commence operations in the coming months, subject to the necessary approvals and statutory procedures.
HVDC is a technology used for transmitting electricity between two grid systems. The supply side power is converted from alternating current (AC) to direct current (DC) before being transmitted, and is then converted back to AC in the receiving system for use. The system is ideal for long-distance transmission due to the technology’s ability to minimize electricity losses, and to its lower space requirements and construction costs. It is also well-suited for interconnections between two different frequencies.
The global HVDC market has seen many projects using line commutated converter technology (LCC)HVDC systems since the 1970s, while the development of voltage source converter (VSC) systems has advanced as a new technology since around 2000. In recent years there has been a particular focus on using HVDC to connect renewable energy sources. This has seen an increase in VSC-HVDC transmission systems, which facilitate grid-stabilization.
The technology is ideal for long-distance underground and underwater power links and interconnections, and is increasingly being deployed across a range of applications. These include the integration of renewable energies from land-based and offshore wind farms, the mainland power supply to islands and offshore oil and gas platforms, city center in-feeds where space is a major constraint, and cross-border interconnections that often require subsea links. Its ability to comply with grid codes ensures robust network connections regardless of application.
In Japan, nine HVDC projects were carried out up to 2006, all of them using the LCC type. Now, with the increasing introduction of renewable energy and innovation in electric power systems, demand for VSC-HVDC systems is expected to increase for applications such as wide-area power transmission grids and connection of offshore wind farms.
Hitachi has participated in every HVDC project in Japan so far. In the Japanese market, which demands a high level of reliability, Hitachi has contributed through technology development and project management to the creation of HVDC systems that maintain high operation rates ranking amongst the best in the world.
The new joint venture will combine Hitachi’s sales network, project management expertise, quality assurance processes and delivery performance record, with ABB’s state-of-the-art HVDC technologies, and contribute to innovation in electric power systems in Japan.
Press release; Image: ABB (Illustration)