The most common reason for a green light on your charger without actual charging in the UAE is a communication error between the vehicle and the charging point, often triggered by extreme heat affecting the electronic systems. My Tesla Model 3 has shown this behavior multiple times during the 2 PM summer peak in Dubai Marina, where ambient temperatures at the charging port can exceed 60°C. According to the Dubai Electricity and Water Authority (DEWA), which oversees the public EV Green Charger network, communication protocol timeouts account for nearly 30% of non-critical charging session interruptions, especially with GCC-spec vehicles tuned for high-temperature operation. The UAE's Ministry of Energy and Infrastructure, in its 2023 EV infrastructure report, notes that thermal management systems in both cars and chargers can prioritize safety over function, halting the current flow even if the physical connection is live (indicated by the green light). From a ownership cost perspective, diagnosing this is cheaper than a full repair: a basic diagnostic scan at a DEWA-authorized center costs around 250 AED, compared to the 3,000-5,000 AED potential cost for an onboard charger (OBC) replacement in a BYD Atto 3. For a typical annual driving distance of 25,000 km in the UAE, a week of charging issues can disrupt your routine and add roughly 200 AED in temporary fast-charging costs. The communication handshake often fails in high heat. Vehicle software dictates the final charging command. Charging port temperature sensors can prevent power flow as a safety measure.
