PLATONE platforms are an extension of SOGNO, aiming at implementing concepts and approaches that can increase the observability of renewable energy resources and less predictable loads while exploiting their flexibility, with the use of block chain techniques and the simulation of market mechanisms. Together with a consortium of 11 partners from Belgium, Germany, Greece and Italy, ACS will develop several advanced management platforms to unlock grid flexibility and to realize an open and non-discriminatory market, linking users, aggregators and operators. Fully respecting the existing regulatory framework, this layered set of platforms will allow the needs of local system operators, aggregators and end users to be met. A blockchain based platform, acting as the access layer to generators’ and customers’ flexibilities will break traditional access barriers by providing certified measures to all the players. In conjunction, certified data and signals will be used for an innovative DSO platform to locally maintain system integrity, fostering confidence in flexibility operations. An upper layer will implement a new concept of blockchain-based open market platform to link the local system to the transmission system operators’ (TSO) domains and enhance the overall system cost and efficiency. The platforms will be tested in three large pilots in Europe and analysed in cooperation with a large research initiative in Canada.