Moving from 4G to 5G telecommunication, there is a trend in increasing capacity and sites, and the stability of telecom stations is critical. Therefore, power quality and readiness are the priorities for mobile operators. The case demonstrated a new telecom site in China which uses mGen fuel cell to power the communication network 24/7 when the power capacity is not enough to supply for both 4G and 5G stations. There are several important network communication locations in de