figure 3. The 2013 ENTSO-E grid map. represent key elements of this strategy. The EU has identified key infrastructure projects supporting the move toward an IEM. Substantial change will come from investment in these projects-called projects of common interest (PCIs)- network codes implementation, the integration of demand-side resources into ancillary services market design, the interface with distribution system operators (DSOs), and guidelines or legislation on local and large-scale energy storage. The reduction of EU energy dependence is another objective that requires diversification of supply options accompanied by an optimization of energy network infrastructures to maximize the benefit from this diversification. This must all be supported by investments in research and innovation, including new technologies to optimize the management of the grid. These efforts will be coordinated through the EC's Horizon 2020 Framework program for research and innovation and the associated integrated road map. Faced with 24 ieee power & energy magazine a quickly changing energy landscape, ENTSO-E has established an adaptive approach to product development to ensure it can respond within shorter time frames. Cooperation on Three Levels Legal Mandates The regulatory framework sets out the tasks of ENTSO-E and the obligation for the TSOs to cooperate at the EU and regional level and drives the development of many ENTSO-E deliverables, including: ✔✔ network codes in a number of areas defined in the regulation covering connection, system operation, and market-related issues ✔✔ coordinated regional network development planning and the biennial publication of a ten-year network development plan (TYNDP) january/february 2015