Cox Communications Sees Significant Annual Savings With Solar-Plus-Storage

Cox Communications, the largest private broadband provider in the United States, is committed to improving quality of life and driving positive environmental change through ambitious sustainability goals. As part of its pledge to be carbon and water neutral by 2034, Cox has invested heavily in renewable energy and innovative technologies. At its primary corporate office in San Diego, Cox partnered with PowerFlex to implement the region’s first integrated solar-plus-storage project, furthering the company’s leadership in clean energy and operational efficiency.

The Challenge

Advancing Sustainability with Onsite Clean Energy

Cox Communications set out to further its commitment to sustainability by reducing carbon emissions and utility costs at its San Diego corporate office. Achieving these goals required more than just installing solar panels—it meant finding a solution that could maximize onsite clean energy use, provide reliable backup power, and support the company’s broader pledge to be carbon and water neutral by 2034. Additionally, Cox needed a system that would deliver strong financial returns and seamlessly integrate with existing operations, all while supporting the region’s transition to a clean-energy future.

PowerFlex’s Solution

Integrated Solar-Plus-Storage for Maximum Efficiency

INSTALLATION TYPE

Carport & Rooftop Solar
Battery Energy Storage System

INSTALLATION SIZE

480-kW Solar
560-kW / 1.4-MWh Battery

LOCATIONS

San Diego, CA

INCENTIVES

Self-Generation Incentive Program (SGIP)

To help Cox Communications achieve its sustainability and operational goals, PowerFlex designed and installed a comprehensive solar-plus-storage system at the company’s San Diego corporate office. The project features a 480-kilowatt (kW) rooftop and carport solar array paired with a 560-kW / 1.4-megawatt-hour (MWh) battery energy storage system.

This integrated solution is managed through PowerFlex X™, a customer dashboard that provides real-time and historical data on solar production, battery state of charge, facility load, and much more. By combining solar generation with advanced battery storage, the system is able to offset nearly 20% of the building’s energy usage, reduce utility demand charges, and provide $150,000 in annual savings — while also supporting grid resiliency and Cox’s long-term carbon neutrality goals.

“Sustainability and driving positive environmental change are core to the way Cox does business. We’re excited our largest California facility is spearheading the use of solar power and battery storage to reduce our carbon footprint in the region.”

Sam Attisha

Senior Vice President of Government and Public Affairs for Cox Communications

Driving Innovation and Community Impact

The San Diego installation marks Cox Communications’ first solar-plus-storage project in the county and is part of a broader sustainability initiative that includes more than 40 onsite solar generation projects nationwide. Supported by California’s Self-Generation Incentive Program (SGIP), the system is designed not only to benefit Cox’s operations but also to provide virtual power plant (VPP) grid services in support of San Diego’s Community Choice Aggregation program. By leveraging local and state incentives and engaging with community leaders, Cox continues to demonstrate its commitment to environmental stewardship and the advancement of clean energy solutions for both its business and the wider community.