US Charging Infrastructure Is Outpacing Forecasts, Study Finds
During the first three months of 2021, the United States installed its 100,000th EV charger. Ars Technica reports on the important electric vehicle milestone: Of course, the actual composition of those chargers is important. It's no good having half a million places to plug in if they're all level 1 (120 V AC) chargers that take days to top up a battery EV. But a new report (PDF) from the National Renewable Energy Laboratory has dug into the data, looking at trends to see whether the nation is on track to meet its goals. At first glance, the news is positive. We added 4,566 new chargers during Q1 2021 for a total of 100,709. That means the US is already 20 percent of the way to Biden's 2030 goal. Most of those were level 2 (240 V AC) chargers, which saw 5.4-percent growth. The number of level 1 chargers actually decreased by 2.4 percent, mostly as ChargePoint decommissioned them in favor of level 2 devices. Because a level 2 charger usually takes 8-10 hours to fully recharge a 250-300 mile BEV, drivers (particularly those who have yet to convert to an electric car) are probably more interested in the number of the faster level 3 (usually known as DC fast) chargers. Depending upon the car and the power output of the DC fast charger, these can charge a battery to 80 percent in 20-50 minutes. There was essentially no growth in DC fast chargers between Q4 2020 and Q1 2021. After multiple quarters of rapid expansion, the number of public DC fast charging ports grew by just 0.4 percent. The NREL attributes this to the integration between ChargePoint's and Greenlots' APIs [...]. Level 2 chargers can recharge any electric car, but not all BEVs can plug in to all DC fast chargers. All US Teslas use a proprietary charging plug, and 56.7 percent of all public DC fast chargers in the US are part of the Tesla Supercharger network. The various charging network APIs don't all report exactly the same information in exactly the same way, so the NREL was only able to determine the charging power for a limited number (6,821) of DC fast chargers. That led to a rather scary-looking pie chart on the Department of Energy's website showing that 40 percent of DC fast chargers were only able to supply 50 kW or less. However, the chart is based on only 6,821 chargers and excludes almost the entire Tesla Supercharger network from its data set.
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