Ever wondered how much power is consumed by your laptop when you are using it day long? Microsoft Research has come up with a new tool called Joulemeter which allows you to measure the energy usage of virtual machines, servers, desktops, laptops, and even individual software running on a computer. Joulemeter estimates the energy usage of a VM, computer, or software by measuring the hardware resources.
You need to calibrate whether the system type is desktop, laptop or a server and also the number of connected monitors to the PC. Once calibrated, you can see the power usage. Application runs in the system tray.
Joulemeter checks CPU, disk, memory, screen being used and converting the resource usage to actual power usage based on automatically learned realistic power models. The current version is in alpha, but you can check out the power usage by installing this freeware app.
