Sustainable Connectivity: How green energy is redefining India’s digital infrastructure

As India positions itself as a global leader in sustainable development, its telecom sector has emerged as a transformative powerhouse in the drive towards environmental sustainability. Contributing 6.5 per cent to the national GDP and projected to reach a market value of $69.62 billion by 2029, the sector stands at the forefront of a green revolution, reshaping both digital and environmental landscapes.

Digital infrastructure: The catalyst for zero-carbon transformation

India’s telecom sector has achieved a remarkable feat by becoming carbon-negative, while enabling other industries to reduce their environmental footprint through digitalisation. Accounting for approximately 9 per cent of the nation’s carbon emissions, the sector has transformed itself into a critical enabler of zero-carbon goals across various industries.

This transformation is reflected in the surge in broadband connectivity, with subscriber numbers rising from 480 million in September 2018 to 940 million in June 2024. Average data usage per user has more than doubled from 8.32 GB to 21.3 GB per month, while the cost per GB has dropped from Rs 10.91 to Rs 8.31, making digital services more accessible than ever.

The healthcare revolution

The impact of this digital revolution has been particularly profound in healthcare delivery. E-health services have fundamentally transformed medical access and care delivery while significantly reducing the sector’s carbon footprint. Telemedicine platforms have eliminated an estimated 70 million miles of patient travel annually, substantially cutting transportation-related emissions. Digital health records have replaced millions of paper files, reducing storage requirements and associated energy consumption. Remote patient monitoring through internet of things (IoT) devices has decreased unnecessary hospital visits by 45 per cent, optimising resource utilisation while improving patient care outcomes.

Educational transformation

The education sector has undergone a similar transformation through e-learning initiatives. Digital classrooms have revolutionised traditional education models, eliminating daily commutes for millions of students and educators. Virtual laboratories have replaced physical facilities, reducing chemical waste and energy consumption. The shift to digital textbooks and resources has saved millions of trees annually, while online assessment systems have eliminated the need for paper-based examinations and their associated logistics.

Digital workplace evolution

Office digitalisation and remote work capabilities have emerged as powerful drivers of environmental sustainability. The shift to digital offices has reduced physical space requirements by 30 per cent, leading to significant reductions in energy consumption. Cloud-based systems have minimised on-premises server requirements by 50 per cent, while digital collaboration tools have replaced business travel, substantially cutting aviation emissions. Smart building systems now optimise energy usage based on real-time occupancy data, further enhancing efficiency.

Digital transformation of banking

The digital revolution in the banking sector has yielded impressive environmental benefits. Mobile banking has reduced branch visits by 60 per cent, while digital payments have eliminated the need for physical currency printing and transportation. Cloud-based banking solutions have optimised data centre energy consumption by 40 per cent. The shift to paperless bank statements and digital documentation has saved millions of trees annually, while electronic verification systems have eliminated the need for courier services in document processing.

E-Governance: Digital citizen services

The digitalisation of government services has emerged as a cornerstone of sustainable development. Online application systems have eliminated millions of physical forms, while digital verification processes have reduced citizen travel by half. E-court services have revolutionised judicial processes, significantly reducing paper usage and physical court visits. Integrated digital systems have streamlined inter department communications, while virtual meetings have minimised government official travel requirements.

Measurable environmental impact

The collective impact of this digital transformation has been substantial. Across sectors, there has been a 45 per cent reduction in paper-related carbon emissions, a 30 per cent decrease in transportation-related emissions, and a 50 per cent reduction in physical infrastructure energy consumption. Resource conservation metrics show a 60 per cent reduction in paper consumption, a 40 per cent decrease in physical storage requirements, and a 35 per cent reduction in water consumption through smart management systems.

Infrastructure and innovation

India’s digital infrastructure is vast and resilient, with 814,000 telecom towers and 2.94 million base transceiver stations providing 99 per cent 4G coverage across more than 600,000 villages. Additionally, 4.19 km of fibre optic cables have been laid, achieving an 85.43 per cent teledensity. This robust network is the backbone of India’s digital transformation.

Sustainability has been at the core of infrastructure development. Telecom tower sites have transitioned from 4-5 kW solar systems to 10 kW set-ups, meeting the higher energy demands of 4G/5G networks. Diesel-free sites have increased from 90,911 in December 2016 to 223,177 in March 2024, resulting in annual diesel savings of around 550 million litres.

Leading operators have set ambitious sustainability goals. Bharti Airtel plans to reduce its Scope 1 and 2 greenhouse gas emissions by 50.2 per cent by 2031, aiming for net zero emissions by 2050. Reliance Jio targets a 76 per cent reduction in Scope 1 and 2 emissions by 2028 and net zero emissions by 2035. Jio has already installed 161 MW of solar capacity across 17,000 sites.

Smart cities and integrated infrastructure

Smart cities are central to India’s sustainable development vision, blending digital infrastructure with green solutions. The successful execution of 7,380 smart city projects worth Rs 1,477.04 billion showcases this integration.

An emerging trend in smart city infrastructure is the increased use of integrated (multi-utility) street furniture. These installations combine small cells, Wi-Fi hotspots and electric vehicle charging stations, providing seamless digital connectivity while maintaining city aesthetics. Telecom infrastructure players have placed a significant focus on this innovation to preserve urban skylines and ensure efficient space utilisation.

Policy support and renewable energy access

Policy interventions have been pivotal in accelerating green energy adoption. The Green Energy Open Access (GEOA) amendment policy, introduced in May 2023, has revolutionised renewable energy access. By allowing power demand aggregation across multiple sites to meet the 100 kW threshold, GEOA has made renewable energy procurement feasible for telecom operators of all sizes. Already, 24 states/union territories have adopted this policy, boosting sustainable energy integration.

The transformative impact of GEOA has exceeded initial expectations, catalysing unprecedented levels of consumption and utilisation through ambitious expansion plans across the sector. This surge has significantly expanded market investment opportunities and overall market size, creating a robust ecosystem for renewable energy development. The increased market participation and investment flows directly contribute to India’s vision of “Viksit Bharat”, while advancing the nation’s Panchamrit commitments for a sustainable future and reinforcing its position as a global leader in green energy adoption.

The impact of these policy initiatives is evident in India’s remarkable solar energy achievements. The nation crossed a significant milestone in 2024 as installed solar energy capacity surpassed 200 GW, with non-utility solar installations contributing 25 per cent of total capacity additions. The year witnessed an impressive addition of 24.5 GW of new solar capacity, marking substantial growth across various segments. Notably, rooftop solar installations surged by 53 per cent year-on-year, reaching 4.6 GW, while off-grid solar solutions demonstrated exceptional growth with a 197 per cent expansion, highlighting the success of decentralised renewable energy adoption.

The Ministry of Power’s amendments to the GEOA rules have further strengthened this shift. The reduction in cross-subsidy surcharges and the waiver of additional charges for offshore wind projects have incentivised green energy investments. Moreover, these measures have enhanced the financial viability of transitioning to renewables.

Navigating challenges and harnessing opportunities

The deployment of 5G networks presents both challenges and opportunities. While 5G requires nearly three times more base stations than LTE to deliver similar coverage, it offers superior energy efficiency per data unit transmitted. Balancing this infrastructure expansion with sustainability is crucial as the sector scales.

The global energy landscape is also evolving rapidly. By 2025, renewable sources are expected to surpass coal as the largest source of electricity generation. Wind and solar power are projected to contribute over 42 per cent of global electricity by 2028, doubling their current share. Notably, wind and solar power are on track to exceed hydropower generation and overtake nuclear energy by 2025 and 2026 respectively.

Strengthening regulatory and financial support

To sustain this green momentum, the telecom sector continues to advocate for supportive regulatory measures. Key policy expectations include:

• Reclassifying telecom infrastructure under industrial rather than commercial electricity tariffs.
• Deploying smart/prepaid electricity meters at telecom sites.
• Streamlining processes for new power connections, targeting installation within 15 days.
• Implementing advanced maintenance systems to manage power cuts exceeding three hours.

These measures will accelerate the telecom sector’s transition to sustainable energy while ensuring uninterrupted service quality.

Aligning with India’s climate commitments

These advancements align with India’s broader climate goals under the Panchamrit pledges made at COP26. The nation aims to achieve 500 GW of non-fossil-fuel-based energy capacity by 2030, meet 50 per cent of its energy requirements from renewables, and reach net zero emissions by 2070.

Conclusion

As India advances through 2025, its telecommunications sector exemplifies the balance between economic growth and environmental responsibility. The integration of 5G technology promises enhanced IoT capabilities for better resource management and improved energy efficiency in data transmission. The sector’s commitment to 100 per cent renewable energy usage, carbon-negative operations, and zero-waste digital services by 2030 demonstrates its dedication to environmental stewardship.

India’s Green Revolution 2.0 is more than a sectoral shift – it offers a blueprint for global sustainable development. As the world confronts climate challenges, India’s model underscores that sustainability and profitability can coexist, paving the way for a greener, more connected future.