How to Read PlugShare Station Scores for Your Electric Car

What Is PlugScore and How Is It Calculated?

PlugScore is a 1-to-10 rating that reflects how recently and how often drivers report successful charges at a station. It is not a simple average of all reviews ever left. The algorithm gives more weight to recent check-ins, so a charger that was broken last month but fixed this week will see its score recover as new positive reports come in.

Several factors feed into the score. The number of total reviews matters, but so does how frequently drivers check in, whether those drivers have verified accounts, and how recent those check-ins are. A station with steady, recent positive activity scores higher than one with a burst of reviews from two years ago and nothing since.

The score goes up when drivers report successful charges and goes down when they report failures or problems. This makes PlugScore a rough indicator of current reliability rather than historical reputation.

What Do PlugShare Score Ranges Mean?

Think of PlugScore in three bands: reliable, mixed, and problematic. Here is what each range tells you in practice.

These ranges are guidelines, not guarantees. A 7.5 with fifty reviews is more informative than a 9.8 with three reviews. The score is a starting point. The reviews and photos tell the full story.

Why Does PlugScore Weight Recent Reviews More?

Charger reliability changes constantly, and a score based on old reviews would be misleading. A station might have had a perfect record for two years, then a connector broke last Tuesday. An all-time average would still show a great score. PlugScore's recency weighting catches that drop faster.

The same works in reverse. A station with months of bad reviews might have been repaired and upgraded. If recent drivers are checking in with positive experiences, the score climbs back up to reflect the current state of the hardware, not its history.

This is why you sometimes see a station's score shift noticeably in a short period. It is not a bug. It is the algorithm responding to new information. For drivers, this means the score you see today is more relevant than one you saw a month ago.

Why Review Count Matters More Than the Score

A PlugScore is only as trustworthy as the number of reviews behind it. This is the most important thing to understand about the rating system, and it is easy to overlook.

A station with 2 reviews and a 10.0 score means exactly two people checked in and both had a good experience. That is barely any data. A station with 50 reviews and an 8.5 means dozens of drivers have used it over time and the vast majority charged successfully. The second station is far more trustworthy, even though its score is lower.

When comparing stations, look at the review count first and the score second. A high review count with a good score is the best signal you can get. A high score with a low review count is essentially a coin flip.

As a rule of thumb, stations with fewer than 10 reviews should be treated as unrated. The score exists, but it does not have enough data behind it to mean much.

Why Photos and Recent Reviews Beat the Number

Photos uploaded by other drivers are often more useful than the score itself. They show you things a number cannot: the parking layout, whether the connectors look damaged, what signage is posted, whether the station is easy to find, and whether the parking spots are blocked by non-EV vehicles.

The most recent 3 to 5 written reviews give you context the score hides. A station might have a 7.0 because one of four connectors is broken, but the other three work perfectly. That is useful information that a single number cannot communicate. Or a station might score well overall, but three recent reviews mention that it requires a specific app that is difficult to set up on the spot.

Before you rely on any station for a road trip stop, take 30 seconds to scroll through the recent reviews and photos. That habit will save you more time than any score alone.

How to Contribute to PlugShare Scores

Check in after every charge, especially when everything goes well. Most drivers only leave reviews when something goes wrong. This creates a negativity bias that drags scores down even at reliable stations. A 10-second check-in confirming "charged successfully" helps balance the picture.

• → Check in after every session. Even a simple "it worked" check-in adds a data point. The more data, the more accurate the score.
• → Leave a written review when something is notable. If a connector is broken, access is confusing, or the station is particularly well-maintained, say so. Specific details help other drivers more than a star rating.
• → Add photos. A photo of the station layout, the connectors, or even the parking situation is worth more than a paragraph of text. Photos showing signage and access routes are especially helpful for first-time visitors.
• → Use a verified account. Check-ins from verified PlugShare accounts carry more weight in the scoring algorithm than anonymous ones.

PlugShare's data is crowdsourced. The scores are only as good as the community behind them. Every check-in you leave makes the system more reliable for the next driver.

Frequently Asked Questions

The Bottom Line

PlugScore is a useful starting point, but it is not the full picture. The number tells you whether recent drivers had a good or bad experience. The review count tells you how much to trust that number. And the photos and written reviews tell you what the score cannot: which connectors work, what the parking is like, and whether you need a specific app to start charging.

Build a habit of checking the last 3 to 5 reviews and scrolling through the photos before you commit to a charging stop. It takes 30 seconds and saves you from showing up at a station that looks great on paper but has a broken connector and no cell signal.

EVcourse is not affiliated with, endorsed by, or sponsored by PlugShare or Recargo, Inc. PlugShare and PlugScore are trademarks of their respective owners. Score calculations and features described here are based on publicly available information and may change without notice. Always verify current information directly on PlugShare.