The demand for extremely low-power technologies was born from necessity; starting with the fabrication process and moving all the way to application areas. Particularly, energy sensitive applications are now driving demand for unprecedented hours of service from a single battery that is measured in years rather than in days or months. Meeting this demand requires integrated devices that are not only developed in synergy with the characteristics of battery power, but also with an understanding of how the application will operate in order to achieve 10, 15 or even 20 years of operation without replacing the primary cell. This white paper describes the benefits of low-power design technology and applicable scenarios.