The reliability of the UK’s public EV charging network is facing a crisis rooted not just in faulty hardware, but in data invisibility. New, exclusive research from the EV charging platform Monta reveals that a significant portion of the Charge Point Operator (CPO) community lacks the fundamental tools to diagnose network failures—a “blind spot” that is now directly exposing them to substantial regulatory risk under the government’s tough new standards.
The core finding is stark: 29% of senior UK CPOs admit they are unsure how to identify the root cause of a failed charging session. This alarming lack of diagnostic clarity presents a serious threat to the mandatory 99% uptime required for rapid chargers (>50kW) and the associated financial penalties.
The £10,000 Question: Tangible Regulatory Risk
The UK government’s Public Charge Point Regulations 2023 mandate a 99% annual reliability rate for rapid chargers, backed by fines of up to £10,000 per non-compliant charge point. This sets the stage for a high-stakes operational environment where guesswork is no longer viable.
EV Charging Magazine obtained an exclusive comment directly addressing this critical financial hazard.
Jon Evans, Head of Market UK and Ireland at Monta, was unambiguous about the danger this diagnostic failure poses to CPOs’ bottom lines:
“Diagnostic blind spots are not abstract technical issues. Under the UK’s 99% uptime requirement, they translate directly into regulatory and financial risk. If an operator lacks real-time visibility of their network, they cannot detect, nor resolve issues quickly and every minute of downtime pulls their reliability score in the wrong direction.”
Evans highlights the immediate financial threat of an unresponsive network: “With penalties potentially reaching £10,000 per unit, a single unresolved fault can quickly become a high cost for networks that are already operating on tight margins.”
The Great Contradiction in CPO Priorities
Monta’s data reveals a major disconnect between CPO intentions and current capabilities.
Operators overwhelmingly rank measurable performance and reliability as their most important factor when choosing network hardware partners. This signals a clear industry shift towards consumer trust and consistency.
However, the diagnostic blind spot undermines this focus. With nearly half of CPOs reporting difficulty in fault tracing, operators are relegated to time-consuming, expensive reactive maintenance cycles.
“Engineers are dispatched without clarity on what they are trying to fix—and when a remote resolution may have been sufficient,” Evans explains. “As a consequence, resolution times increase and it becomes harder to meet compliance reporting regulations.”
The industry, according to Monta, “cannot scale on guesswork.”
Why the Uptime Mandate is a Frontline Threat
The push for 99% uptime is driven by overwhelming consumer frustration. Surveys have consistently shown that one in five public chargers may be out of order at any given time, leading to queueing and significant range anxiety for EV drivers.
The new regulations aim to fix this experience, forcing CPOs to transition from simply installing chargers to actively maintaining their reliability.
“You cannot achieve 99% and you certainly cannot prove it, if you do not have accurate, real-time diagnostic insight,” Evans stresses.
This is more than a technical hurdle; it’s a failure to meet the government’s consumer-centric standards.
The Path Forward: AI and Real-Time Diagnostics
The research confirms an immediate, strong demand for smarter network management tools. CPOs recognize that without them, they face longer downtimes and stretched maintenance resources.
Key priorities for modern Charge Point Management Systems (CPMS) include:
- Real-Time Visibility: Seamless CPMS integration for constant network monitoring.
- Transparent Tools: Clear diagnostic capabilities and stronger firmware oversight.
- Advanced Traceability: Improved error-code analysis and AI-driven fault detection.
Evans suggests that advanced tools, including those driven by Artificial Intelligence (AI), will soon take on the diagnostic burden. This allows human engineers to be dispatched only when necessary, maximizing efficiency and minimizing costly downtime.
People Also Ask: The Impact on EV Drivers
This issue directly impacts the growth of the electric vehicle market across the UK.
What is the biggest problem with the UK EV charging network?
While the sheer number of chargers (availability) is a concern, the biggest issue cited by drivers is poor reliability. Out-of-order chargers, confusing payment systems, and difficulty finding a functioning unit significantly erode public confidence in switching to EVs.
How does this Monta research affect the EV driver?
Every minute an operator spends trying to guess the cause of a fault is a minute a charger remains unusable. The diagnostic blind spot directly results in longer outages, forcing drivers to spend more time queuing or searching for a working unit. Monta’s findings are a call for better CPO tools to deliver a better driver experience.
What is the 99% uptime requirement?
It is a legal mandate from the UK government (Public Charge Point Regulations 2023) requiring rapid chargers (50kW and above) to be available for use at least 99% of the time, averaged across the CPO’s entire network over a year. The failure to meet this standard carries the risk of large financial penalties.


