The transformation of a traditional city into a Smart City is not a simple task and requires necessarily start from a correct management of energy, which leads to energy efficiency through the sustainable behavior of prosumers. In fact, thanks to new technologies such as IoT and smart appliances, it is possible to induce in the consumer a new type of behavior, not only in energy consumption, but also in the exchange and sale of energy, assuming a fundamental role in Smart Grids. Prosumer Side Management appears as a way to manage micro smart grids in a much more complex, volatile and real-time energy market, control and management that are entrusted to Smart Agents and Blockchain to obtain a new model of management of the organs safely and reliably. This paper gives a micromesh model that includes within it a smart home, RES, Electric Vehicle, a control algorithm that leads to the management of the Virtual Power Plant in an adaptive and intelligent way and through the RESCoin (virtual currency linked to RES), so that prosumer facilitated by the process of exchange of energy and money can become the driving of energy transformation in future Smart Cities.