Electrify America’s network restored to full capacity
Electrify America announced that it has restored full capacity to its entire network after its high-powered charging cables cleared extensive testing from the cable manufacturer, HUBER+SUHNER.
At the recommendation of HUBER+SUHNER, Electrify America shut down many of the high-powered CCS (Combined Charging System) chargers (150 kW–350 kW) in its network while the company and HUBER+SUHNER investigated a potential safety issue.
The recommendation from HUBER+SUHNER came following an isolated event experienced at a private test facility in Europe with an early prototype liquid-cooled cable, similar to those installed on some of Electrify America’s charging dispensers. A short-circuit occurred in a plug in a high-power charging system in a first-generation prototype in use at the test site. The shutdown recommendation was issued by HUBER+SUHNER to all customers using liquid-cooled cables worldwide.
“The safety of our customers is our highest priority. Extensive testing throughout the weekend and Monday showed that the cables have met all industry standards for use, and as a result, we are bringing our entire network back to full capacity,” said Giovanni Palazzo, President and CEO of Electrify America. “We thank our customers for their patience as we worked through this, as well as HUBER+SUHNER for making this their top priority and resolving the issue with speed and the highest levels of technical expertise and professionalism.”
During the charging cycle, the liquid-cooled high-power charging cable system operates by pumping the coolant through a closed tube circuit that runs through cable and connector, absorbing the heat. The coolant is a mixture of synthetic esters and additives and has a high dielectric strength.
Although many of the high-powered CCS chargers (150 kW–350 kW) were shut down following notification of the potential safety issue, Electrify America was able to keep all 89 charging stations operational in some capacity, as all charging stations, in addition to the high-powered CCS chargers, have either CHAdeMO, 50 kW CCS, or L2 chargers—none of which were affected.