Maryland Utility-Owned EV Chargers: An Assessment of Online Status in September and October 2024

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.

Delmarva EV Charging Availability Chart

65% Avg – Delmarva Charging Ports Online, Sep. 13 – Oct. 20, 2024

L2 Avg: 65% | DCFC Avg: 63%

BGE  EV Charging Availability Chart

90% Avg – BGE Charging Ports Online, Sep. 19 – Oct. 21, 2024

L2 Avg: 92% | DCFC Avg: 77%

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Whitmore Garage, Annapolis – BGE EVsmart Charging Station

Whitmore Garage Annapolis BGE EVsmart charging station

Baltimore Gas and Electric owns and operates this EV charging station at the Whitmore Garage in Annapolis, MD. Located on a lower floor of the pay parking garage.

Charger Construction Cost

$151,474 Total site construction cost per the Maryland PSC PC44 EV Pilot Program

CategoryAmount
Labor$90,702
Material$48,872
Network Fees$11,900
Utility Administration
Total$151,474

Electricity Cost vs Revenue

MetricAmount
Energy Used23,843 kWh
Revenue$4,981.42
Electricity Cost$20,806.67
Deficit-$15,825.25
Note: This calculation only reflects the difference between electricity costs and revenue as of June 30, 2024. Other operating expenses, such as maintenance and repair costs, are not included.

Trend Graph: Monthly Electricity Dispensed in kWh

Whitmore Garage EV charging station monthly usage graph
Whitmore Garage EV charging monthly usage trend in kWh

Site Information

Location
Address: 37 Clay St., Annapolis, Maryland 21401
County: Anne Arundel
Facility Type: Pay Parking Garage
Coordinates: 38.978757, -76.496354
Directions: Enter the parking garage from Clay Street.
Map Link: OpenStreetMap

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Wye Mills Park & Ride Lot B – Delmarva Charging Station

Electric vehicle charging station Wye Mills, Maryland

Delmarva Power and Light owns and operates this 50 kW EV charging station at Wye Mills Park and Ride, Lot B in Wye Mills, MD. Located at the intersection of Route 50 and Route 404, this DC Fast Charger is on the way to the Maryland and Delaware beaches.

Charger Construction Cost

$178,072 total site construction cost per the Maryland PSC PC44 EV Pilot Program

LaborMatlNetwkAdminTotal
$114,370$48,075$2,862$12,765$178,072

Profit/Loss – Revenue vs Electricity Bill

kWhRevenueElec. BillProfit
25,300$7,771.22$12,063.43-$4,292.21 (Loss)

Trend Graph: Monthly Electricity Dispensed in kWh

Wye Mills charger monthly usage graph
Wye Mills Park and Ride EV charging monthly usage trend in kWh

Site Information

Location
Address: 101 Wye Trading Dr., Wye Mills, Maryland 21679
County: Queen Anne’s
Facility Type: Parking Lot
Coordinates: 38.93961, -76.06308
Directions: In the parking lot on the western side of Route 50 at Route 404.
Map Link: OpenStreetMap

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Delmarva EVsmart Charger Audit – September 29, 2024

DPL EV Charging Availability chart September 29, 2024

Delmarva Power and Light: Charger Audit Results

  • L2: 64%
  • DCFC: 69%
  • Goal: 97% Uptime

The chart above documents the findings of a virtual “charger audit” conducted on September 29, 2024. This audit involved checking the status of each charging port in Delmarva’s EVsmart network using the ChargeHub app, with any ports reported as “offline” cross-verified against the Shell Recharge app. The goal is to compile a series of data points to independently assess charger reliability against Maryland’s 97% uptime target.

65% Availability on September 29, 2024

At the time of the audit, only 65 percent of the charging ports were available or in use. The chart shows a persistent gap between reported availability and the 97% uptime goal over the past three weeks. According to uptime standards, a charger falls short if it is offline for more than 11 days per year, and many of these ports have already exceeded this threshold.

The reliability of these public charging stations is critical to Maryland’s electric vehicle adoption goals. Without dependable access to chargers, drivers may hesitate to switch to electric vehicles, worried about the risk of being stranded—especially in areas with fewer charging stations.

Delmarva Charger Audit map - September 29, 2024

12 Sites Completely Offline

Perhaps the most troubling finding is that 12 Delmarva charging sites were completely offline, with none of their chargers functioning. This is particularly inconvenient for drivers in rural or less densely populated areas like Maryland’s Eastern Shore, where charging options are already limited.

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Delmarva EVsmart Charger Audit – September 22, 2024

Delmarva Charger Audit map 09-22-2024

Goal of 97% Uptime

The Maryland Public Service Commission approved a limited EV pilot program in January 2019. Since then Delmarva Power and Light has built public EV charging stations at 42 locations across their service territory. The expectation, much like with their residential and commercial electricity services, was that Delmarva’s electric vehicle charging stations would uphold high standards of reliability. The goal is to maintain at least 97 percent uptime for each charging port (plug) in the pilot program utilities’ public charging networks. This means that each plug must be available and operational 97 percent of the time on an annual basis.

Percentage of Ports Up on 09-22-2024

  • L2: 66% (74 of 112)
  • DCFC: 69% (9 of 13)

66% Overall Up on 09-22-2024

This post is to document the results of a virtual “charger audit” conducted on September 22, 2024. This audit involved reviewing the online status of each of the 125 charging station ports in Delmarva’s EVsmart network using the ChargeHub and Shell Recharge apps. At the time of the query, 66 percent of all ports were reporting to be online, in use or available for use. 66% is far short of the 97% average annual uptime required to meet EV charger reliability goals.

This level of unreliability presents a significant hurdle to Maryland’s electric vehicle adoption goals, as it undermines public confidence in the charging infrastructure critical for widespread EV adoption.

Distressingly, 11 Delmarva charging sites are completely offline, with none of the chargers working at those locations. If you’re planning a trip to the eastern shore of Maryland, be sure to check ahead before relying on these stations.

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Broken EV Chargers on 09-13-2024 – Delmarva Utility-Owned

DPL Broken EV Charger map Maryland

Delmarva Power and Light Charger Audit September 13, 2024

Maryland EV drivers are facing frustration as a growing number of public charging stations in the Delmarva Power and Light (DPL) service territory are offline. Of the 125 charging ports across 42 DPL-owned locations, 44 are currently reported as offline (as of September 13, 2024), representing over 35% of the total. This lack of reliable charging infrastructure threatens to hinder EV adoption in Maryland.

Unfortunately, many charging locations are completely offline, with none of the chargers working. If you’re planning a trip to the eastern shore, be sure to check ahead before relying on these stations.

Public Chargers Owned by Delmarva Power that Display as Offline on September 13, 2024

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