Battery Life and Energy Efficiency

Energy efficient hardware design and software implementation are critical for achieving extended battery life in mobile platforms.

Battery Life Solutions

Mobile Battery Life Solutions: A Guide for Mobile Platform Professionals   Information about designing and configuring mobile PCs to provide for maximum battery life

Energy Efficient Design for Battery Life

	Designing Power-Friendly Devices Design concepts and recommendations for multicore platforms, PCI Express 2.0. and USB 2.0
	Power Policy Configuration and Deployment in Windows Vista Power policy store, power policy configuration and reference, how to use PowerCfg tool
	Processor Power Management in Windows Vista and Windows Server 2008 ACPI PPM features, Windows power policy, firmware guide, tools and processes for optimizing processor power policy
	VSync Control in Windows Vista SP1 WDDM and registry changes to control the monitor refresh rate, for significant energy savings on mobile PCs.
	Windows Disk Idle Detection Windows infrastructure details, guide for pre-install power policies, how to PwrTest to view disk idle behavior
	Windows Vista Energy Conservation Features that promote power savings and estimates of PC power consumption and savings

Enery Efficiency for Driver Developers

	Driver Support for Runtime Idle Detection How drivers for USB and other devices can increase system power efficiency
	Plug and Play and Power Management in WDF Drivers Callback sequences, advances KMDF power management; details for software-only and simple hardware drivers

Energy Efficiency for Application Developers

	Application Power Management Best Practices for Windows Vista Handling sleep/resume, design for common events and media PC scenarios, how to use Power Event Monitoring Tool
	Application Shutdown Behavior in Windows Vista
	Power and Device Awareness Tips in the Mobile PC User Experience Guidelines for Developers

Measuring and Optimizing Power Performance

	Measuring System Resume Performance on Windows Vista Concepts and methodology for S3 measures; how to use WDK tools; driver tips for fast resume performance
	Optimizing Windows Vista Platforms for Energy Efficiency Tips for extending battery life; how to evaluate; example power policy settings to favor power savings

Tools for Testing Energy Efficiency and Power Events

	Power Event Monitoring Tool Sample Application Visual Studio example code for responding to common power events
	Perfmon – performance monitoring Performance counting, performance logs and alerts, and System Monitor information
	Powercfg – advanced policy parameters Command-line documentation
	PwrTest - viewing PPM states and transitions Details on WDK tool for automating S3 behavior

Tips from Experts: Energy Efficient Design

	Designing Power Friendly Devices [WinHEC 2007; 13.5 MB]
	Integrating Drivers and Applications with Windows Power Management
	PCs and Energy: Efficiency Implications for OEMs and IHVs [WinHEC 2007; 416 KB]
	Power Optimizations for Windows Platforms [WinHEC 2007; 2.1 MB]
	How To: Use Windows Vista Power Management APIs to Be A Good Laptop Citizen (Channel 9)

PnP and Power Developer References

	Windows Logo Program Requirements and Policies
	Power Management (MSDN Library)
	WDK Online

See Also

Power Management and ACPI

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