Japan’s Transmission and Distribution IT & OT Systems LLC, a joint venture established in September 2023 by ten general power transmission and distribution (T&D) companies, has awarded an order for a complete set of the next-generation nationwide load dispatching system, to Hitachi Limited.
The ten T&D companies are Hokkaido Electric Power Network, Inc., Tohoku Electric Power Network Company, Inc., TEPCO Power Grid, Inc., Chubu Electric Power Grid Company, Inc., Hokuriku Electric Power Transmission & Distribution Company, Kansai Transmission and Distribution, Inc., Chugoku Electric Power Transmission & Distribution Company, Inc, Shikoku Electric Power Transmission & Distribution Company, Inc., Kyushu Electric Power Transmission and Distribution Company, Inc., and The Okinawa Electric Power Company, Inc. Hitachi will build the next-generation system to standardise the load dispatching system under the jurisdiction of each of the nine general T&D companies (excluding the Okinawa area). It will utilise the know-how developed in Japan and Hitachi Energy’s global package, Network Manager. The new system will perform a wide-area load frequency control function that will be introduced for the first time in Japan, as well as optimisation calculations for nationwide generator start-stop planning, and supply and demand control through security-constrained unit commitment/security-constrained economic dispatch functions.