OF Launches Integrated O&M Service for Battery Energy Storage Sites, Centralizing Responsibility for Communications, Monitoring and On-Site Response

OF Inc. (Head office: Minato-ku, Tokyo; Representative Director: Kohei Nishiyama) has launched an O&M service that centralizes operational responsibility in response to two issues becoming increasingly evident at battery energy storage sites: lost electricity sales opportunities caused by communication outages and fragmented responsibility across multiple vendors. The service integrates monitoring, emergency dispatch, manufacturer coordination, aggregator coordination and communication infrastructure to maximize revenue from battery energy storage sites while reducing operational burden. Background 1: Battery energy storage sites have become infrastructure that immediately loses money when stopped Unlike solar power facilities, battery energy storage sites rely on structures such as remote EMS control, constant connection with aggregators and real-time response to balancing markets. As a result, the moment communication stops, electricity sales and control functions also stop completely. When a high-voltage battery energy storage site in the 2MW class participates in market trading, a one-day outage can result in revenue losses ranging from several hundred thousand yen to several million yen. Background 2: Problems actually occurring in the field 1. The cause cannot be identified quickly, delaying initial response: In some cases, it takes several hours to several days to isolate whether the issue is with communications, EMS, PCS or the aggregator. 2. Responsibility is unclear: Manufacturers, chief electrical engineers, aggregators and EPC companies may not be able to determine who should respond. 3. Decision-making before recovery is slow: Coordination among companies, estimates and insurance confirmation take time, resulting in expanded losses. Solution: OF's integrated O&M 1. Integrated monitoring, including communications, available 24 hours a day, 365 days a year. 2. Root cause identification by engineers at the monitoring center. 3. Emergency dispatch network with 250 locations nationwide. 4. On-site support for receiving and transforming equipment, DC equipment including EMS, PCS and BESS, and communication equipment. 5. Support for aggregator coordination. 6. Centralized management of insurance-related response. O&M track record Solar O&M: More than 1,800 sections nationwide, expected to reach 2,400 sections within 2026. Battery energy storage O&M: Four projects already contracted, with 20 projects expected to be managed within 2026. Benefits For EPC companies and distributors: Avoid post-construction operational risk and separate fault response from their responsibilities. For aggregators: Improve control stability. For project owners: Reduce operational burden and maximize revenue. Future development OF will continue building battery energy storage operational infrastructure that combines O&M, communications and aggregator coordination, providing foundational services that support market expansion. Contact Please contact the company through the inquiry form at the following link: https://www.o-f.jp/co tact/ About OF Inc. OF Inc. provides maintenance and operation services for communication infrastructure and energy infrastructure. With technical strengths in communication infrastructure, including network equipment design, construction and maintenance as well as monitoring center operations, the company provides infrastructure operation services nationwide. The company also has an extensive track record in solar power facility O&M, maintaining and managing more than 1,800 sections of equipment across low-voltage, high-voltage and extra-high-voltage facilities. Using its nationwide network of engineers across 250 locations and a monitoring center operating 365 days a year, OF provides one-stop service from remote monitoring to on-site response. Backed by technical capabilities in both communication infrastructure and energy infrastructure, OF also provides services that support stable operations in the battery energy storage field. Company overview Company name: OF Inc. Location: New Pier Takeshiba North Tower 14F, 1-11-1 Kaigan, Minato-ku, Tokyo Representative: Kohei Nishiyama, Representative Director Established: July 2003 Business areas: Network solutions business Energy solutions business Education ICT solutions business Official website: https://www.o-f.jp/