277 - The Charger Accuracy Episode
About this episode
The discussion dives into the accuracy of electric vehicle (EV) chargers, revealing that many chargers either underdeliver or overdeliver energy compared to what they display and charge for. Craig Marsden from EVCI Global explains how they measure charger output with precise equipment, uncovering discrepancies as large as -37% to +30%. The lack of government regulation means these inaccuracies persist, but EVCI Global aims to introduce a diamond standard certification to help consumers identify reliable chargers. The episode also touches on the challenges of enforcing accuracy and the potential impact on charge point operators and EV users.
In this episode of EV Musings, Gary Comerford discusses the accuracy of electric vehicle chargers with Craig Marsden from EVCI Global. They explore the discrepancies between what chargers report and what is actually delivered, highlighting the lack of regulation compared to traditional fuel stations. Craig explains the testing process and the potential for a diamond standard accreditation for accurate chargers.
Guest Details:
Craig Marsden : I lead the technical and operational strategy at EVCI Global, specialising in the accuracy of electricity delivered, future compliance, and trustworthiness of public EV charging. My work focuses on real-world testing and independent verification, ensuring every kWh billed is every kWh delivered. With experience across the UK and Ireland, I work directly with charge point operators, regulators, and fleets to raise standards and future-proof infrastructure. I head the development of the EVCI Diamond Standard – the UK’s only accreditation for EV charger accuracy, aligned with MID Class A (±2%) thresholds. My goal is simple: build a charging ecosystem drivers can trust, operators can market, and regulators can stand behind.
The EV Musings Podcast is sponsored by Zapmap, the go-to app for EV drivers, helping you find and pay for public charging with confidence.
Links in the show notes:
Episode produced by Arran Sheppard at Urban Podcasts: https://www.urbanpodcasts.co.uk
(C) 2019-2026 Gary Comerford
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Dodge Charger
"...g for. Now, our main topic of discussion today is charger accuracy. Now, I don't know whether you know, but..."
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