Fair and equitable treatment/Minimum standard of treatment, including denial of justice claims
Umbrella clause
http://www.energycharter.org/what-we-do/dispute-settlement/investment-dispute-settlement-cases/81-silver-ridge-power-bv-v-italy/
http://globalarbitrationreview.com/news/article/34071/italy-spain-feel-heat/ (requires subscription)
http://www.iareporter.com/articles/arbitral-claims-start-to-mount-against-italy-as-new-ect-claim-lands-at-icsid/ (requires subscription)
https://www.iareporter.com/articles/latest-energy-charter-treaty-claim-against-italy-to-be-chaired-by-bruno-simma/ (requires subscription)