Pytes is proud to announce that its Energy Storage Battery has officially received the UL1973:2022 NRTL Certification issued by TÜV SÜD at CIBF 2026, one of the world's leading battery industry exhibitions.
This certification marks a significant milestone in Pytes’ global compliance journey and further strengthens the company's ability to serve residential, commercial, and industrial energy storage markets across North America.
What Does UL1973:2022 NRTL Certification Mean?
UL1973 is one of the most recognized safety standards for battery energy storage systems in North America. It evaluates the safety of battery systems used in applications such as renewable energy storage, backup power, microgrids, and other stationary energy storage installations.
The NRTL (Nationally Recognized Testing Laboratory) certification program is authorized by the U.S. Occupational Safety and Health Administration (OSHA). Products certified under an OSHA-recognized NRTL program are widely accepted throughout the United States and are often required for market access, project approval, and regulatory compliance.
By successfully passing comprehensive testing under the UL1973:2022 standard, Pytes’ ESS Battery has demonstrated compliance with stringent North American safety requirements.
More Than a Certification: A Commitment to Continuous Compliance
Achieving UL1973 certification is only part of the process.
Unlike many one-time testing programs, NRTL certification requires ongoing compliance through regular factory inspections and audits. Certified manufacturers must continuously demonstrate production consistency, quality control, component traceability, testing capability, and manufacturing excellence.
This rigorous oversight ensures that certified products maintain the same safety and quality standards throughout their entire production lifecycle.
For Pytes, this ongoing certification framework aligns perfectly with our commitment to delivering reliable, safe, and high-performance energy storage solutions to customers worldwide.
Supporting North America's Growing Energy Storage Market
As demand for residential and commercial energy storage continues to accelerate across the United States and Canada, safety, reliability, and compliance have become increasingly important factors for homeowners, installers, distributors, utilities, and project developers.
The successful completion of UL1973:2022 NRTL certification provides additional confidence that Pytes energy storage solutions are designed to meet the expectations of one of the world's most demanding energy markets.
The certification also helps streamline market adoption by reducing compliance barriers and supporting project approvals across a wide range of energy storage applications.
Building on a Foundation of Quality and Innovation
This achievement reflects Pytes’ long-term strategy of combining advanced battery technology with rigorous quality management and international compliance standards.
Over the years, Pytes has continued expanding its portfolio of residential and commercial energy storage solutions, including industry-recognized products such as the E-BOX 48100R, Pi LV1 stackable battery system, V15 high-capacity battery, and integrated ESS solutions designed for modern energy independence.
As the global transition toward renewable energy accelerates, Pytes remains committed to investing in product innovation, safety validation, inverter compatibility, and certification programs that support customers worldwide.
Looking Ahead
Receiving the UL1973:2022 NRTL Certification is an important milestone, but it is not the destination.
Pytes will continue advancing product safety, manufacturing excellence, and global compliance capabilities while delivering dependable energy storage solutions that empower homeowners, businesses, and energy professionals across North America and beyond.
Through continuous improvement and a commitment to the highest industry standards, Pytes is helping build a safer, smarter, and more sustainable energy future.
