**13. Conclusions**

In future urban grids, powerful, reliable, versatile, protected, robust and inexpensive electrical supply will be needed. The most versatile advancement strategy choice for accessing different planning problems related to urban grid enhancement and transformation, suggested by submission resolutions sponsored by the VSC-HVDC. The organisational versatility and stability of urban grids can be greatly improved by launching direct input of electricity into load centres and improving intercity power generation capacities and dramatically decreasing the need for the regional generation and spinning supplies. The technology of VSC-HCDC is evolving and developing continuously. New architecture concepts rely on modular products and lightweight systems which will have the ability to incorporate urban power grids.
