nysSaver

Generally speaking, leaving your screen open while your computer is idle means you are wasting a lot of energy and that can surely reflect in your electricity bill at the end of the month.
NysSaver is a very light piece of software designed to toggle off your monitor when you are not using the computer to reduce energy consumption.

Does not come with an interface of its own

The setup is straightforward and, since it does not need any further configuration, you can start using the application right away. You can access the tool from the System Tray and set the desired Sensitivity, which is a function that determines how often and how soon the screen toggles off.
You should know that the app does not come with a standalone UI and it would be nice if it included an interface that allowed you to view the distribution of energy consumption in your system. Then again, considering that the application works quietly in the background, it can also be argued that it is non-distracting.

Could use a schedule function

It is necessary to mention that the program does not include any advanced options and it starts monitoring your activity in order to determine the best time to shut down the screen. As a matter of fact, the options you can access include pausing it for 10 minutes or while you are watching a movie.
It would be useful if the utility came with a schedule function that enabled you to schedule the times when the app should be active and proceed to turning off your monitor. On the other hand, let us not forget that the tool is designed to toggle off the screen and does not interfere with any background processes, such as updates, scans or downloads for instance, on your computer.

A quiet and non-distracting energy saving tool

All in all, nysSaver is a very basic utility that keeps an eye out for the times when your PC is idle so it can turn off your monitor and save energy.