#United States #EV Charging #Bristol #TESCO® #NIST Compliance

Ensuring Accurate EV Charging and Billing with TESCO®

As electric vehicles (EVs) gain popularity across the globe, ensuring the reliability and accuracy of EV charging infrastructure has become critically important. The rapid growth in the number of public EV charging stations highlights the urgency of this issue, with the U.S. alone boasting over 71,000 stations and approximately 200,000 charging ports as of March 2025. Canada is also witnessing significant advancements, featuring 33,767 public charging ports distributed among 12,955 stations.

However, despite this growing network, serious concerns persist regarding the reliability of these charging stations. Recent findings reveal that 26% of public chargers do not perform as expected, while up to 45% of DC fast chargers are reported to be nonfunctional. This not only leads to frustrating experiences for users but also raises alarm about potential billing discrepancies. In California, for instance, over 15% of public chargers are found to inaccurately bill customers for the energy consumed, raising issues of consumer trust and regulatory compliance.

The Challenges of Charger Accuracy and Compliance

The dynamics of EV charging usage highlight the necessity for dependable energy measurement solutions. Inaccurate billing can lead to immense financial burdens for users and undermine confidence in EV adoption. Meanwhile, charging service providers face heightened pressure to maintain revenue streams amid the threat of underbilling. The California situation illustrates the pressing need for accurate compliance with NIST Handbook 44 and state regulations, as many charging units remain uncertified, putting both consumers and operators at risk.

TESCO®: A Commitment to Accurate Charging Solutions

In light of these pressing challenges, TESCO®—the Eastern Specialty Company—has been proactive in addressing the need for accurate metering solutions since its establishment in 1904. The company has developed Electric Vehicle Supply Equipment (EVSE) testing products that ensure charging stations align with NIST HB 44 standards, paving the way for reliable billing.

Innovative Testing Technologies

TESCO's patented testing technologies provide comprehensive solutions to ensure charger accuracy and reliability. Their approach includes:

• - Comprehensive Accuracy Verification: This guarantees that the energy dispensed by chargers precisely reflects the energy billed, mitigating concerns about overbilling.
• - Real-World Simulation: By replicating typical charging scenarios, TESCO tests performance under conditions that closely resemble actual operational use, ensuring reliability.
• - Portability: With the ability to conduct on-site testing and instant verification, TESCO minimizes downtime for charging stations, fostering continuous compliance and operational efficiency.

Ensuring a Sustainable EV Charging Future

As the EV market continues to grow, it is essential for utilities and charging services to prioritize the reliability and accuracy of charging stations. TESCO® remains committed to supporting this endeavor by providing cutting-edge testing solutions designed to uphold the integrity of EV charging infrastructure. Through their commitment to innovation and quality service as outlined in their mission statement and quality policy, TESCO® aims to be the leading resource for all electric utility customers.

By investing in TESCO's testing technologies, operators of electric vehicle charging infrastructure can enhance consumer confidence and maintain necessary regulatory standards. The implications of this support extend beyond consumer trust; they contribute to the sustainable growth of the EV sector itself, nurturing the solid foundation needed for further expansion.

To discover more about how TESCO® can assist in ensuring compliance with NIST HB 44 standards and promote fair billing practices, visit their website at tescometering.com/EVSE. TESCO® continues to position itself as a leader in providing solutions that benefit both consumers and service providers in the electric utility space.