What makes it stand out
The Emporia’s pitch is simple: buy the specs of a premium charger without the premium. It delivers a full 48 amps and 11.5 kW — the same top tier as chargers costing far more — and pairs that with an ENERGY STAR listing, a long 25-foot cable, a remote holster in the box, and a weather-resistant NEMA 4 enclosure so it can live outdoors. Emporia backs it with a 3-year warranty and UL listing, so you’re not trading safety certifications for the lower price.
The part that separates it from the true bargain-bin units is the app. Emporia grew out of home energy monitoring, and it shows: the WiFi app reports actual kilowatt-hours and lets you schedule charging around cheap overnight rates, rather than just toggling the charger on and off. If you like seeing where your money goes — and you want to line charging up with a time-of-use utility plan — that data is genuinely useful and usually costs more to get.
Charging speed, worked out
Here is the math, so you can re-run it for your own car. Hardwired, the Emporia pulls 48 amps at 240 volts, which is 11.5 kW(48 × 240 = 11,520 watts). Using our standard reference of about 3.5 miles of range per kWh, that’s roughly 40 miles of range per hour. On the NEMA 14-50 plug the unit is limited to 40 amps, or 9.6 kW, which works out to about 34 miles per hour. Either way, for the 30–60 miles most people actually drive in a day, it’s a one-to-two-hour top-up, and a large battery still fills overnight. Your real number moves with your car’s efficiency, which is exactly why we show the 3.5 mi/kWh assumption instead of quoting a single marketing figure.
The install: plug-in or hardwired
The Emporia ships in a version that can be hardwired or run from a NEMA 14-50 plug, and that choice sets your top speed. To use the full 48 amps you hardwire it, and because EV charging is a continuous load the circuit is sized to 125% of the current — the NEC “80% rule” — so 48 amps needs a 60-amp circuit. Older panels often can’t spare that; our panel capacity guide walks through how to check before you buy.
If you’d rather plug it in — to keep it movable, or to avoid a hardwired install — the NEMA 14-50 route runs at 40 amps on a common 50-amp circuit, again the 80% continuous limit. That’s the same outlet a lot of homes already have for a range or dryer. If you’re still deciding between the two, our hardwired vs plug-in comparison lays out the trade-offs. Either way, the 240V circuit behind the charger is a licensed-electrician job.
Who should buy it — and who should skip it
Buy it if you want the best specs-per-dollar in the category: a real 48 amps, an app that actually tracks energy, and ENERGY STAR efficiency, without paying the brand premium. For the large majority of homeowners installing their first Level 2 charger, this is the sensible default and the one that leaves the most money in your pocket.
Skip itif app polish and a deep support bench matter more to you than price — the ChargePoint Home Flex is more refined and adds adjustable amperage, which is worth the premium to some buyers. If you never plan to open an app at all, a no-frills unit like the Grizzl-E Classicis tougher for full outdoor and cold-weather duty and has nothing to break. And if your panel truly can’t spare a 60-amp circuit, run the Emporia at 40 amps on a plug or look at a load-balancing charger instead of paying for an upgrade.