Over the last decades, WSN systems enabled quality monitoring of power, heat production and water supply process. Empirical and practical evidence shows that the development of new services, which require new business models, is necessary. To address this issue, a framework for evaluating service prototypes and associated business models is proposed. A pilot conducted by Riga Technical University and VATS Ltd, Power distribution infrastructure services provider, enables a real life experience, how to transfer legacy power grid into a “state of art” grid by using WSN and creating a framework for new services. During the next three years, the framework will be tested by evaluating a new smart services concept and WSN approach development. The case study is done in a liberalized power supply market conditions.