How to fix 'This Website Is Using Significant Energy' warning on Mac

Safari is often chosen by the majority of Mac users as the main web browser on their devices, thanks to its power optimization and deep integration with Apple services like iCloud. Sometimes you may see Safari showing a warning about a website using too much power: ' This Website Is Using Significant Energy '. What does that mean and how can you solve it?

What does Safari's 'Significant Energy' warning really mean?

Typically, the warning 'This Website Is Using Significant Energy' will appear at the top of the tab, just above the content of the website in Safari. It should be noted that this warning does not mean that the website is down or unresponsive, but that the website is consuming an alarming amount of system resources, especially if you are using battery instead of plugging in. direct power supply.

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In other words, Safari is trying to tell you that keeping this website active will drain your device's battery faster. The problem can be traced back to some elements on the page like scripts or embedded videos. Also, too many ads showing at the same time on the page can also cause this problem.

You can view Safari's effects by opening Activity Monitor (search via Spotlight or in Applications > Activity Monitor). Click the ' Energy ' tab , then click the ' Energy Impact ' column to rearrange the data in descending order. The processes that are using the most energy will be listed at the top.

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Besides, you can also click on the battery icon in the top right corner of the screen to see a list of the apps that are consuming the most power.

Fix 'This Website Is Using Significant Energy' warning

If for some reason you can't close a website that's showing the 'This Website Is Using Significant Energy' warning, the easiest way to keep working is to plug in your laptop direct electricity instead of using batteries.

Sometimes, the warning is triggered due to a system error. Then reloading the page can fix the problem. However, don't be surprised if the warning reappears, especially in the case of resource-intensive web apps like Google Sheets or Spotify's web player. Restarting your Mac can also be a helpful fix.

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If Safari is out of date, the warning may be due to an incompatibility with an element on the web page. Try installing the new Safari update in System Preferences > Software Update , and try visiting the website again to see if the warning still shows up.

In addition, removing unused plugins and extensions can also help Safari operate more efficiently, reducing system resource usage.

David Pac

Update 02 September 2021