1 2. Transmission regulation for the future US electric grid. A critical review of electricity transmission regulation in the US at federal, regional (ISO or RTO) and state levels. You have to select one or more ISOs or RTOs of special interest. Examine useful comparisons with European regulation at state and EU levels. You have to cover investment, access and pricing issues. Examine the trade-0H5 between centralized and decentralized planning approaches. Examine the possibilities of application of some kind of performance-based regulation. Make a proposal about the regulatory changes that would be necessary to have an adequate transmission grid, able to cope with the expected challenges of the US power system during the KEG century