Virtual Charger Audit
In 2019, the Maryland Public Service Commission approved a pilot program allowing five utility companies to own and operate public charging stations. By regulation, these utilities must maintain a 97% uptime for their charging stations. This means each charging port must be operational and supply electricity at least 97% of the time annually.
Methodology
In September and October 2024, I conducted a series of virtual “charger audits,” using the ChargeHub, Shell Recharge and ChargePoint apps to check the online status of every charging port in the utility networks. While on-site audits are ideal, weekly virtual audits provide a practical way to track the system’s performance remotely.
Data Charts
The following charts illustrate the data collected from these virtual charger audits.

65% Avg – Delmarva Charging Ports Online, Sep. 13 – Oct. 20, 2024
L2 Avg: 65% | DCFC Avg: 63%

90% Avg – BGE Charging Ports Online, Sep. 19 – Oct. 21, 2024
L2 Avg: 92% | DCFC Avg: 77%
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