Abstract: Embodiments of the present invention provide computer-implemented methods, computer program products and computer systems. For example, embodiments of the present invention can, in response to receiving a request, create a power refactoring model for a codebase based on received telemetry data and static analysis of code within the codebase. Embodiments of the present invention can further optimize existing code regions within the codebase to function with less energy requirements using the created power refactoring model and replace existing code regions within the codebase with optimized code that functions with less energy requirements.