Consumer’s flexibility, deployed under a diversity of incentive and price-based demand response programs and incentives for distributed generation, has a huge potential to the increase of the smart grid efficiency. The aim is to take full advantage of the potential of consumers’ demand flexibility, while ensuring their proper remuneration and increasing the efficiency of the whole energy and power system. In spite of the low cost and huge unexplored potential, demand response use is still at very low levels around the world. The identification of the most prominent solutions and business models will be achieved by the contributors for this special session that will bring experience in the development and use of effective solutions in the field.