Comment HP Smart is flagrantly wasteful of power (Score 1) 55
HP Smart has a horrible misfeature. It creates a task in Windows Tasks Scheduler that wakes the computer every day at the same time to check for a new version of HP Smart. This might be innocuous, except that the task is marked as "Wake the computer if necessary." So every computer with HP Smart installed runs for several minutes a day and then (hopefully) shuts down again.
You might think, "Who cares?" But the impact is significant.
1. For laptop users, the update check can easily drain your laptop's battery over the course of a few days, depending on your power settings. This happens because the checkbox for "Start the task only if the computer is on AC power" is NOT checked, so this update task wakes your computer to run.
2. The aggregate power usage is flagrantly wasteful. Let's make some assumptions with a "back of the napkin" estimate:
- 25 million computers connected to HP printers (that's 20% of households in the US)
- Each PC or laptop wakes up for 5 minutes per day
- Systems use an average of 50 watts (blended rate for laptops versus desktops)
Multiplied out, that's ~38 million KwH.used annually. By making a single change to this task and unchecking the box for "Wake the computer", this power usage would be effectively become zero because the computers would already be running before the update check was run.
Unchecking the box yourself doesn't work because the next time HP Smart updates itself, it resets all of the checkboxes and forces the computer to turn on again.