Green Network Index: the environmental sustainability of networks in 2026

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Green Network Index: the environmental sustainability of networks in 2026
While there are several indicators and metrics in telecoms, the industry has traditionally lacked a global, comprehensive metric to measure environmental sustainability. In 2025, GSMA Intelligence developed the Green Network Index (GNI), which proposed a single figure to measure the overall environmental sustainability for telecoms networks and help establish a path to greener networks.
The second edition of the Green Network Index series has expanded to include 138 networks across 46 countries and more than 2,000 data points, benchmarking progress at the operator and country levels. This report highlights an uneven global landscape and emphasises the need for continued data harmonisation and cross‑industry collaboration as the GNI initiative advances towards 2027.
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Green Network Index: the environmental sustainability of networks in 2026
Related research
Green Network Index: round one
While there are several indicators and metrics in the telecoms sector, there is not yet a comprehensive or holistic metric to measure environmental sustainability. Thus, GSMA Intelligence has developed the Green Network Index (GNI), which proposes a single figure that attempts to summarise overall environmental sustainability for networks and outline an evolutionary path. This recommended figure includes 10 elements, including resource and emission efficiency, renewable energy usage, network performance, availability and vertical enablement, among others.
Green Network Index case study: Openserve
The Green Network Index is a tool for tracking progress on sustainability among telcos and understanding what is driving or holding back progress. The index offers granular data to allow for country and regional comparisons. Alongside the flagship GNI report and index, GSMA Intelligence is releasing a series of company case studies to illustrate innovation in action. This case study highlights how Openserve has taken a leadership position by re-architecting its network energy model, using AI-driven optimisation and renewable energy integration to ensure resilience, affordability and sustainability.
Green Network Index case study: China Mobile (Guangdong)
The Green Network Index is a tool for tracking progress on sustainability among telcos and understanding what is driving or holding back progress. The index offers granular data to allow for country and regional comparisons. Alongside the flagship GNI report and index, GSMA Intelligence is releasing a series of company case studies to illustrate innovation in action. This case study highlights how scale and technological sophistication position China Mobile (Guangdong) as both a major energy consumer and a critical testbed for how next-generation networks can be delivered through more energy-efficient and sustainable operating models.
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Learn moreRelated research
Green Network Index: round one
While there are several indicators and metrics in the telecoms sector, there is not yet a comprehensive or holistic metric to measure environmental sustainability. Thus, GSMA Intelligence has developed the Green Network Index (GNI), which proposes a single figure that attempts to summarise overall environmental sustainability for networks and outline an evolutionary path. This recommended figure includes 10 elements, including resource and emission efficiency, renewable energy usage, network performance, availability and vertical enablement, among others.
Green Network Index case study: Openserve
The Green Network Index is a tool for tracking progress on sustainability among telcos and understanding what is driving or holding back progress. The index offers granular data to allow for country and regional comparisons. Alongside the flagship GNI report and index, GSMA Intelligence is releasing a series of company case studies to illustrate innovation in action. This case study highlights how Openserve has taken a leadership position by re-architecting its network energy model, using AI-driven optimisation and renewable energy integration to ensure resilience, affordability and sustainability.
Green Network Index case study: China Mobile (Guangdong)
The Green Network Index is a tool for tracking progress on sustainability among telcos and understanding what is driving or holding back progress. The index offers granular data to allow for country and regional comparisons. Alongside the flagship GNI report and index, GSMA Intelligence is releasing a series of company case studies to illustrate innovation in action. This case study highlights how scale and technological sophistication position China Mobile (Guangdong) as both a major energy consumer and a critical testbed for how next-generation networks can be delivered through more energy-efficient and sustainable operating models.
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