日本語 
NTT Docomo, the biggest mobile operator in Japan, has successfully finished a pioneering 24/7 carbon, free electricity experiment at its telecom facilities with a partnership of NTT Anode Energy and JERA Cross. The 10, month trial started in December 2024 and finished in September 2025. The telecom operator network sites were the perfect place for a real, time matching between the energy demand and renewable supply, which is the first step towards the sustainability of telecom operations.
The experiment utilized a mix of additional non, FIT (Feed, in, Tariff) solar production coupled with biomass power, achieving clean energy supply at a level matching electricity consumption on an hourly basis. According to the companies, this represents the first domestic demonstration in Japan of hourly renewable power matching using biomass energy at telecom infrastructure sites.
What Power Matching Means for Telecom Network
In the past, traditional telecom base stations and network sites have mainly been powered by the grid, with backup generators running, especially in areas with unstable supply or at peak usage times. Power matching is a process that tries to align the energy consumption with the renewable generation on a real, time basis, thus, lowering the network operation’s fossil, fuel, dependency and the resulting carbon emissions.
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In the NTT Docomo experiment:
Renewable energy from solar and biomass was matched on an hourly basis with the electricity consumption by the selected telecom equipment. By mixing several energy sources, the pilot project was, among other things, designed to prove a flexible, resilient renewable energy supply method that does not depend solely on solar, an intermittent source.
This kind of strategy has the potential to lower the carbon emissions from telecom infrastructures without compromising network reliability which is, after all, a very important factor for telecom infrastructures that are mission, critical.
Strategic Sustainability and Operational Resilience
The pilot project is part of a larger trend in the telecom sector which is moving to green network operations, thus driven by more and more commitments from corporates to net, zero and tighter regulations. Deploying 5G services and getting ready for 6G in the future, telecom operators’ energy consumption at base stations, data centers, and edge facilities is set to increase. By directly integrating renewable energy into their network operations, telecom providers can:
Cut Scope 2 emissions related to electricity use. Save on operating costs in the long run through a fossil fuel price risk hedge. Become more disaster, resilient as they power their facilities using different sources and thus, during emergencies, they rely less on grid power.
NTT Docomo has previously advanced power management and resilience initiatives, such as trials using electric vehicles as mobile power backups for base stations, showing a broad commitment to integrating energy-savvy technologies into network operations.
Industry and Business Impacts
Telecom Operators
Mobile operators see matching their network’s energy consumption to the availability of locally generated renewables as much more than a mere sustainability credential. Besides, it might even result in real operational efficiencies and better public perception, especially among enterprise and government customers who are environmental performance advocates. Thus, several telecom society worldwide are net, zero in maintenance targets, and net, zero in energy at the site level means the energy matching be a feasible move that reflects the overall energy goal.
Energy Partners and Grid Integration
The cooperation with energy sector players like JERA Cross and Anode Energy demonstrates how consequential the link between large scale utility energy systems and communications infrastructure could be. This may lead to a novel energy services model that allows telecom operators not just as a user but also as an active participant in renewable energy ecosystems such as microgrids and carbon, neutral power services.
Technology and Sustainability Services Market
The experiment points to the chance for technology providers and energy management systems that support functionalities such as real, time demand response, forecasting, and optimization, which are the features most needed in the move to cleaner power systems, to grow.
Broader Context: Telecom Sustainability
Telecom networks are some of the most energy, hungry parts of the modern infrastructure. With 5G continuously being rolled out and future 6G services, energy consumption will probably keep increasing if no measures are taken. GSMA and other industry groups have highlighted the necessity of telecom sector, wide measures for renewable energy sourcing and efficiency upgrades.
NTT Docomos successful power matching experiment could provide a good example for other operators, particularly in countries that have set ambitious targets for reducing carbon emissions. By demonstrating the feasibility of 24/7 carbon, free operations at the network sites, the company puts itself as a pioneer of sustainable telecommunications innovation.
What Comes Next
Although the experiment showed that the technology was feasible, the next hurdle is to extend such systems over bigger networks and to incorporate advanced energy storage, predictive analytics, and more comprehensive grid coordination. NTT Docomo and its partners could take these outcomes to improve their commercial products or perhaps broaden their renewable energy sourcing strategies.
As telcos merge with the broader digital society via IoT, autonomous systems, and AI, powered connectivity, making sustainability central to operations will probably turn into a necessity that businesses have to comply with rather than an afterthought.
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