Contributed by Martha Galley, Chief Sustainability Officer, Calix
In the race to show sustainability progress, companies often spotlight renewable energy, carbon offsets, or high-profile product launches. These are important, but one of the most effective and measurable ways to deliver both financial and environmental results often goes unnoticed: durability.
Durability happens when sustainability is built into the design itself. It changes how a business operates, influencing materials, maintenance, and customer trust. When products and systems are built to last, they cut waste, reduce operating costs, and show that a company is thinking for the long term.
In broadband, this principle has transformed how networks are built and maintained. For years, competition focused on speed, reliability, and upfront cost. Hardware was replaced frequently, and short product cycles were considered standard. But as broadband became essential for education, healthcare, remote work, and community connection, this short-term model began to show its limits.
Every replacement cycle adds expense to equipment, labor, and training while creating more electronic waste. Providers have begun to realize that acquisition cost, or what you pay on day one, tells only part of the story. The real measure is the total cost of ownership and what it takes to run, maintain, and replace a system over its lifetime.
Durability looks different across the broadband ecosystem. In the core and access network, systems are designed to operate for decades, but upgrades can require large infrastructure investments. At the premises level, the gateways, routers, and Wi-Fi systems inside homes and businesses turn over much faster, creating a greater environmental impact. That is where design innovation matters most. Software-enabled platforms extend product life and functionality through continuous updates instead of full hardware replacement. This is an evergreen innovation approach that keeps systems capable and efficient while reducing energy use and electronic waste.
Research supports the importance of designing for longevity. The U.S. National Institute of Standards and Technology (NIST) found that increasing a product’s lifespan by 50 percent can reduce replacement needs and environmental impact by about one third. The Fiber Broadband Association reports that retiring copper networks in favor of fiber reduces both costs and emissions because copper requires far more energy to operate and maintain.
The total cost of ownership perspective makes the value clear. When businesses account for energy use, maintenance, and replacement, durable systems often prove to be the smarter financial choice. Broadband providers discovered this when comparing copper and fiber, and the same holds true across industries, from automotive to consumer electronics.
Durability may not grab headlines, but it makes sustainability real. It connects environmental responsibility with financial performance and builds long-term confidence among customers, communities, and investors. As more industries adopt sustainable design principles, durability will remain one of the strongest measures of both performance and resilience.
