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electric car charging stations for sale:Cross-Country Capacity for Premium EVs

Premium EVs will be distinguished from the proletarian versions not only by their larger battery packs but by their ability to charge those packs very quickly, a point Tesla is already illustrating with relatively modest capacities in comparison to what’s being proposed for the future. 

Tesla CEO Elon Musk has hinted that the company intends to go well beyond 350 kW. Chargers on the company’s Supercharger network today are capable of 145 kW, although Tesla vehicles charge at a maximum of 120 kW. As we discovered during our long-term test of a Tesla Model S P85D, cross-country travel is possible, but 45-minute Supercharger stops prove tedious, making quicker charges an enticing prospect. 

To accommodate both mainstream models at 50 kW and future premium models at 400 kW, commercial charging-hardware manufacturers and commercial charging networks need a lot of flexibility built in. That’s why several of the leading charging-equipment suppliers are looking at modular upgradable systems. ChargePoint took over all of GE’s commercial charging stations earlier this year and now claims to be the world’s largest charging network.

 The company has announced a new Express Plus architecture that’s 1000-volt compatible and employs combinations of liquid-cooled power modules and power cubes. The company notes that a car of comparable efficiency would recover 45 miles in 15 minutes from a 50-kW DC fast charger or 370 miles of range in the same time with 400-kW hardware. ABB, too, has designed its chargers—which ChargePoint rival EVgo will implement—with grid stabilization in mind, so that one of its 1.2-MV (AC) substations can power six of these dual-standard ultrafast chargers. new-generation ABB DC fast chargerWith hardware that’s built to be upgraded over time, providers also need to be careful where they locate stations. 

As Michael Jones, ChargePoint’s vice president of sales, pointed out in a recent presentation, 400 kW equals the power demands of an entire grocery store. Because of improved, next-generation hardware, home charging may move from today’s rates of 3 to 7 kW up to 10 kW or beyond, while up to 50 kW (from 20 kW or less today) will be found at so-called Level 2 commercial charging locations, those found at shopping centers, restaurants, and parking lots.

 A third tier of commercial chargers will be focused around providing “charging on the road”—at the rapid rates cars need to quickly regain a significant amount of charge. For cars with smaller batteries, that would be up to 150 kW, while mainstream, midmarket EVs would offer 120- to 150-kW rates, and top-segment models would be capable of charging at 300 kW or more.

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