DOCOMO Conducts Green Base Station Demonstration with PLDT in the Philippines to Advance Decarbonization Technologies

– Weather-Forecast-Linked Lithium-Ion Battery Control Technology of DOCOMO Deployed Overseas for the First Time –

TOKYO, Japan, September 9, 2026 – (JCN Newswire) – NTT DOCOMO, INC., together with the Philippine telecom operator PLDT Inc. and its mobile subsidiary Smart Communications, Inc., has actually effectively performed a presentation in the Philippines utilizing renewable resource such as solar energy * 1 and DOCOMO’s weather-forecast-linked lithium-ion battery control innovation. * 2 The innovation instantly enhances, based upon the weather report, the charging and releasing of batteries utilized at green base stations. The presentation results revealed that solar energy usage effectiveness enhanced by 23 portion points, from 38% before the presentation to 61%. DOCOMO individually established the innovation for green base stations in Japan, and this presentation marks the very first implementation of this innovation outside Japan.

For the presentation, 2 green base stations were developed– one near Metro Manila and one at a website in Cebu with various operating and power-supply conditions. In addition to solar energy devices and battery storage systems, the stations utilize DOCOMO’s Energy Management System (EMS) platform, * 3 an energy management system including weather-forecast-linked lithium-ion battery control innovation. According to PLDT, this is the very first effort in the Philippines to enhance power generation, storage and supply at telecom base stations beforehand based upon weather condition and electrical power need projections. * 4

Figure 1. Green Base Station System Configuration

Standard solar-only base stations count on grid power during the night and throughout bad weather condition and danger of service disturbances throughout power failures. The presentation includes high-capacity batteries and an in your area revamped variation of weather-forecast-linked lithium-ion battery control algorithm established by DOCOMO. * 5 The system enhances power generation, storage and supply all the time, keeping steady service in the evening and throughout interruptions while enhancing renewable-energy usage, lowering grid-power intake and COâ ‚‚ emissions, and decarbonizing base stations.

Figure 2. Weather-Forecast-Linked Lithium-Ion Battery Control

As an investor of PLDT, DOCOMO has actually constructed a strong, enduring relationship with the business through capital ties and technical cooperation. This presentation becomes part of that cooperation and addresses the shared management concern of decarbonizing interactions facilities through a long-lasting, steady collaboration. DOCOMO will continue dealing with PLDT to construct sustainable interactions facilities in the Philippines and surrounding areas while promoting sustainable development and producing brand-new worth.

DOCOMO’s EMS platform utilized in this presentation will be shown at Smart Energy Week, which opens at Makuhari Messe on Wednesday, September 9, 2026.

* 1 Repeatedly readily available energy sources such as sunshine and wind that do not produce greenhouse gases when creating power.
* 2 DOCOMO established its weather-forecast-linked lithium-ion battery control innovation in 2016. Based upon weather report, it instantly and flexibly changes the share of lithium-ion battery capability scheduled for interactions backup throughout blackouts and the share utilized for regular solar charging and discharging, lessening charge-discharge losses.
* 3 An energy management system that keeps track of electrical power usage and efficiently manages power generation, storage and supply.
* 4