Because the official Microsoft Research project page has discontinued public downloads, you must rely on reputable third-party software archives to find the installer:
is a software-based power measurement tool developed by Microsoft Research that estimates the energy consumption of your computer, virtual machines (VMs), and individual applications . While the project is now deprecated and no longer available for official download directly from Microsoft, it remains a popular legacy utility for users looking to analyze power usage without expensive hardware. Where to Download Joulemeter for Windows
Offers the Microsoft Joulemeter 1.2 installer , which is compatible with older Windows versions and often works on Windows 10.
Provides a lightweight version for download , categorized as a system utility.