World energy outlook reporthttp://energyoutlook.blogspot.ro/http://www.iea.org/newsroomandevents/pressreleases/2014/november/signs-of-stress-must-not-be-ignored-iea-warns-in-its-new-world-energy-outlook.htmlhttp://www.oecd-ilibrary.org/energy/world-energy-outlook_20725302http://www.nationalgridconnecting.com/2020-signposts/http://www.iea.org/newsroomandevents/pressreleases/2014/november/signs-of-stress-must-not-be-ignored-iea-warns-in-its-new-world-energy-outlook.htmlhttp://www2.nationalgrid.com/UK/Industry-information/Future-of-Energy/Future-Energy-Scenarios/http://www.telegraph.co.uk/finance/newsbysector/energy/10678417/UK-energy-security-at-risk-as-gas-imports-surge-Centrica.htmlhttps://www.npower.com/idc/groups/wcms_content/@wcms/@corp/@iac/documents/digitalassets/wcms_161561.pdf - INCLUSIV EXECUTIVE SUMMARY

http://www.nationalgridconnecting.com/hitting-the-renewables-goal/

https://www.gov.uk/government/statistics/digest-of-united-kingdom-energy-statistics-2014-internet-content-only