The proportion of electricity that will be supplied by electricity imports by 2020 is expected to be 7.4%.
The power supply sector is projected using the reference case scenario from the Energy and Emissions Projections 2017 (published January 2018), which can be found here: https://www.gov.uk/government/publications/updated-energy-and-emissions-projections-2017
Up to 2020, the reference scenario reflects current power sector policies. Beyond 2020, the reference scenario includes assumptions that go beyond current Government policy. The results do not indicate a preferred outcome and should be treated as illustrative.