National Instruments - tools for green engineering

The National Instruments Green Engineering Technical Library contains a wide variety of resources for environmental application development techniques, example programs, and case studies.

Green engineering is the use of measurement and control techniques to design, develop, and improve products, technologies, and processes for environmental and economic benefits. National Instruments enables green engineering with the graphical system design platform, providing measurement, automation, and design tools to measure and understand real-world data, then to correct or fix the problem by designing and developing more efficient products and technologies.

take a look at http://zone.ni.com/devzone/cda/tut/p/id/6522#green_engineering