Comcast’s Network Traffic Increased More Than 75% While Energy Efficiency Nearly Doubled Over Past Five Years
End-to-end network and cloud technologies enabled a

Comcast’s Network Traffic Increased More Than
“We’ve known for a long time that the future of connectivity is more � more gaming, more streaming, more video conferencing, and, in recent years, more AI,� said Elad Nafshi, Executive Vice President and Chief Network Officer at Comcast. “We’re delivering dramatically more data at faster speeds and greater reliability at the highest quality for our customers, all while conserving the amount of energy needed to power our network. With an ambitious roadmap to meet growing demand, I’m proud of our leadership and progress on network energy efficiency.�
Comcast reported an
Comcast decreased the electricity per consumed byte from 18.4 kilowatt-hours (kWh) per terabyte (TB) in 2019 to 9.3 kWh/TB in 2024.
The efficiency gains have been achieved through Comcast’s ongoing nationwide network transformation to virtualized, cloud-based technologies that deliver faster broadband speeds and greater reliability with less equipment, less space, and less energy per byte.
“Our network is being transformed to enable customers to seamlessly connect to the AI revolution and to leverage it in their day to day,� Nafshi said. “At the same time, we are building in cutting edge network AI to optimize how we deliver our services with sustainability in mind.�
Comcast is embedding AI and machine learning throughout the network to improve diagnostics and make smarter network performance decisions. This includes enhanced monitoring and issue detection using bandwidth-efficient telemetry data as well as improved network maintenance using real-time issue localization plus predictive and self-healing network intelligence � actions that increase efficiency and improve the customer experience.
Comcast is also driving improvement through accelerated decommissioning of legacy equipment and enhancement of technical facilities � for example, through temperature set point optimization and improved air flow at datacenters.
“Driving energy efficiency is a natural evolution of how we meet growing customer demand and makes great business sense, especially as we make significant investments into our network and collaborate with suppliers to deploy the latest technologies,� said Ryan Capone, VP of Network Facilities & Energy at Comcast. “We've now laid the technological groundwork to deliver a fast, efficient, and reliable customer experience, while preparing to leverage AI to further drive efficiency in the future.�
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Source: Comcast Corporation