Statistics - Plug-In Sites

Tesla Tops, BGE Flops: A Data-Driven Look at DC Fast Charger Usage Near Columbia Maryland

May 2, 2024May 2, 2024 Lanny

Fast Charger Showdown: Local Usage Trends in 2023

Here in Columbia, Maryland, I’ve been closely monitoring the usage patterns of nearby electric vehicle fast chargers since 2020. This includes a mix of CCS/CHAdeMO stations from EVgo, Electrify America, Baltimore Gas and Electric (BGE), and Tesla Superchargers. My approach is simple: I track the electricity consumption at each location by recording monthly meter readings and analyzing the data over time. The goal? To gain valuable insights into how fast charging infrastructure is being utilized in this region and identify trends in usage growth.

The chart above visualizes how much people utilized the fast chargers at four different locations throughout 2023. To understand this, I calculated the average daily usage per charger at each site. Here’s how I did it: I took the total electricity used each quarter, divided it by the number of days in the quarter, and then divided that daily usage by the number of fast charger dispensers at the site.

While all four locations saw an increase in usage compared to earlier quarters, there are some significant differences. The utilization rates and growth rates vary greatly between stations. Notably, in the last quarter of 2023, each Tesla Supercharger port dispensed, on average, more than three times the amount of electricity daily compared to the EVgo chargers. Interestingly, the BGE chargers, despite being less than a mile away from the Electrify America station, have a significantly lower utilization rate.

Maryland EV Registrations Surge to 92,722 by End of 2023

January 3, 2024January 3, 2024 Lanny

Maryland electric vehicles registered 2023 — Plug-in electric vehicles registered in Maryland as of Dec 31, 2023

As of December 31, 2023, Maryland has 92,722 registered plug-in electric vehicles, reflecting an increase of 29,978 in the past 12 months, according to MDOT/Maryland Motor Vehicle Administration data.

This noteworthy accomplishment represents a 48% rise, slightly less than the 51% increase observed in the preceding 12-month period from January 1, 2022, to December 31, 2022.

Goal of 300,000 by 2025

Despite remarkable progress, Maryland faces a challenge in reaching its ambitious targets. The state aimed for 60,000 Zero Emission Vehicles (ZEVs) on the road by 2020 and an even more ambitious goal of 300,000 ZEVs by 2025. Aligned with the California Clean Cars Program adopted in 2007, these goals mandate vehicle manufacturers to sell a specified number of ZEVs in the state. Although Maryland was two years behind in meeting the 2020 target, the 2025 goal remains a substantial challenge. The ongoing growth in EV registrations indicates positive momentum, but achieving the state’s vision for electric vehicle sales will require sustained exponential growth in the rate of ZEV adoption to bridge the gap. I will continue to track the progress toward these goals here on PlugInSites.

Source: MVA Electric and Hybrid Vehicle Registration data obtained from Maryland Open Data Portal.

Maryland’s Electric Vehicle Journey: August 2023 Update

September 30, 2023September 30, 2023 Lanny

Maryland EV Registrations by County 2023 — Plug-ins as a percentage of all vehicles registered in each Maryland county as of August, 2023

Electric vehicles are reshaping the future of transportation and Maryland is no exception. As of the end of August 2023, the state has 81,088 registered electric vehicles according to data from MDOT/Maryland Motor Vehicle Administration. While this number signifies substantial growth in the EV segment, Maryland has set its sights on an ambitious goal: having 300,000 Zero Emission Vehicles on the road by 2025. This target is part of the California Clean Cars Program which Maryland adopted in 2007 to reduce emissions. However, as of now, the state is less than a third of the way to meeting its 2025 goal.

About 25,637 of the electric vehicles in Maryland are registered in Montgomery County. As the most populated county in Maryland, with more than one million residents, it makes sense’s natural that Montgomery has the greatest total number of plug-in vehicles. In August, 2021,PlugInSites compared Maryland Plug-In Vehicle Adoption by County measuring the percentage of all vehicles registered in each county that are electric. The findings were telling: Montgomery County and Howard County had the highest percentages of EVs, with 1.61% and 1.63%, respectively.

Montgomery County Leads in Total EVs

Montgomery County has the most total EVs of any county in Maryland with approximately 25,637 electric vehicles. As the state’s most populous county, home to over one million residents, it’s no surprise that Montgomery County has the highest total number of plug-in vehicles.

There were about 5 million vehicles registered in Maryland as of June 30, 2023 according to MVA. About 796,365 are registered in Montgomery County. About 18,096 of the vehicles in the County are Battery Electric, up from 8,140 two years ago. and 7,541 are Plug-In Hybrids, up from 4,623 in 2021. This is a total of 25,637 plug in vehicles now registered in Montgomery County. That means 3.22% of all vehicles registered in Montgomery County are plug-ins, more than double the 1.61% registered two years ago. Howard County now has the highest percentage of plug-in vehicles in Maryland at 3.28%. Montgomery and Howard are way out in front of the rest of the Maryland for percentage of EVs.

Anne Arundel, Frederick and Baltimore City are next in the rankings with between 1.82% and 1.36% of all registered vehicles being electric.

Tesla’s Overnight Supercharging Price Update in Maryland: What You Need to Know

September 25, 2023September 26, 2023 Lanny

Tesla Supercharger price per kWh Maryland — The peak price to charge at the Hanover, MD Supercharger is $0.50/kWh as of September 25, 2023

Tesla drivers in Maryland woke up to a surprise this morning as the electric vehicle maker adjusted its Supercharging prices overnight. The Supercharger prices in the state have been adjusted, with some stations getting more expensive to use, some getting cheaper, depending on the time of day, and some locations have pricing that stays the same. In this blog post, I’ll break down the changes in Tesla’s Supercharger pricing in Maryland as of September 25, 2023 and provide you with the latest pricing details and insights.

Understanding Tesla’s Supercharging Pricing

Tesla has historically employed a straightforward approach to Supercharger pricing, offering a single, 24/7, rate for charging that would change based on the location. However, this has been evolving, with some Superchargers implementing variable pricing structures based on the time of day. The aim behind these changes is to encourage EV drivers to charge during off-peak hours, reducing the strain on the grid and to spread out utilization in order to serve more customers.

Variable rate pricing can segment the day into as many as four distinct periods, each with its own price per kilowatt-hour. This approach tends to reflect the varying costs of electricity throughout the day, but also might be driven by Tesla’s attempt to ease crowding at Superchargers and shift more utilization to less busy times.

Maryland’s Supercharger Price Shift

In Maryland, a total of 52 Tesla Supercharger locations have opened to date. Among these, 34 have maintained their existing single daily rates or peak-time rates. For these stations the main pricing remains unchanged.

However, 16 Superchargers in Maryland have seen an increase in their peak and all-day rates, with changes ranging from an increase of $0.01 to $0.10 per kWh. Two sites in Maryland saw the peak rates go down slightly.

Off-peak pricing for Superchargers in Maryland generally went down with the recent price change. For instance, the peak time (noon to 8:00 pm) rate at the Towson, MD Supercharger increased from $0.41 to $0.44. However, the morning off-peak time (4:00 am-noon) decreased from $0.20 to $0.18.

ChargerAudit – Weekly Report June 24, 2023

June 25, 2023June 26, 2023 Lanny

Tesla Superchargers: Week of Checking Operational Status

During a ChargerAudit the past week, I examined the operational status of Tesla Superchargers at 85 different sites. I verified the functionality of the Supercharger stalls as indicated by the Tesla app. Additionally, I assessed the success of our charging attempts and noted the number of stalls occupied by other Tesla drivers at each site. Given the impracticality of testing every single stall, I carefully observed the stall conditions and monitored the behavior of the drivers, including instances of switching to different stalls, in order to identify any potential issues.

Weekly Stats:

Number of Supercharger Sites Visited: 85
Total Stalls: 890
Down Stalls: 1
Operational Stalls: 99.9%

ChargerAudit – June 23, 2023

June 24, 2023June 24, 2023 Lanny

Tesla Superchargers: Evaluating Operational Status

I am doing a ChargerAudit of Tesla Supercharger locations around the United States. My objective is to assess the operational status of the Superchargers at the site level and at the individual stalls. To do the ChargerAudit, I examine the status displayed in the Tesla mobile app and make a note of any temporary closures or reported non-functional stalls. Upon arriving at a site, the driver selects an available stall at random and initiates the charging process. Furthermore, I document the perceivable charging success of other Tesla drivers and record the number of occupied stalls at each site. Given the impracticality of testing every single stall, I carefully observe the stall conditions and monitor the behavior of the drivers, including instances of switching to different stalls, in order to identify any potential issues.

ChargerAudit – June 22, 2023

June 22, 2023June 23, 2023 Lanny

Tesla Superchargers: Evaluating Operational Status

I’m conducting a ChargerAudit of Tesla Supercharger locations throughout the United States. My objective is to assess the operational status of the Superchargers at the site level and at the individual stalls. To do the ChargerAudit, I examine the status displayed in the Tesla mobile app and make a note of any temporary closures or reported non-functional stalls. Upon arriving at a site, the driver selects an available stall at random and initiates the charging process. Furthermore, I document the perceivable charging success of other Tesla drivers and record the number of occupied stalls at each site. Given the impracticality of testing every single stall, I carefully observe the stall conditions and monitor the behavior of the drivers, including instances of switching to different stalls, in order to identify any potential issues.

ChargerAudit – June 21, 2023

June 22, 2023June 22, 2023 Lanny

Tesla Superchargers: Evaluating Operational Status

I am currently conducting a ChargerAudit of Tesla Supercharger locations throughout the United States. My objective is to assess the operational status of the Superchargers both at the site level and the individual stalls. To achieve this, I examine the status displayed in the Tesla mobile app and make a note of any temporary closures or reported non-functional stalls. Upon arriving at a site, the driver selects an available stall at random and initiates the charging process. Furthermore, I document the perceivable charging success of other Tesla drivers and record the number of occupied stalls at each site. Given the impracticality of testing every single stall, I carefully observe the stall conditions and monitor the behavior of the drivers, including instances of switching to different stalls, in order to identify any potential issues.

ChargerAudit – June 20, 2023

June 20, 2023June 20, 2023 Lanny

Tesla Superchargers: Evaluating Operational Status

I performed a ChargerAudit in and around Seattle Washington today. This involved evaluating the operational status of 12 Tesla Supercharger sites. I documented the functionality of the Supercharger stalls as displayed in the Tesla mobile app during my visit. Additionally, I noted the charging success of Tesla drivers and recorded the number of stalls occupied at each site. It is impractical to test every single stall, so I carefully observed the condition of the stalls and monitored the drivers’ behavior, such as any instances of switching to a different stall, to identify any potential issues.

ChargerAudit – June 19, 2023

June 19, 2023June 19, 2023 Lanny

Tesla Superchargers: Evaluating Operational Status

Today, I performed a ChargerAudit in Washington state, specifically evaluating the operational status of 10 Tesla Supercharger sites. To conduct the audit, I documented the functionality of the Supercharger stalls as displayed in the Tesla mobile app during my visit. Additionally, I assessed the charging success of Tesla drivers and recorded the number of stalls occupied at each site. While it was impractical to test every single stall, I diligently observed the condition of the stalls and monitored driver behavior, such as any instances of switching to a different stall, to identify any potential issues.