Principles for the formulation of policy for the Electricity System

Errochty hydro power station, nuclear safety inspectors, and Cockenzie coal-fired power station


This website sets out principles that should underpin the development of policy for the GB Electricity System. It seeks to make statements that are based on logic and fact, avoiding opinions, as far as is practical.

The fundamental principle is that policy decisions should be based on reliable studies that seek to achieve outcomes which reduce the latent uncertainties inherent in the System to a level that is appropriate to the context.

These studies need to embrace all the requirements for the Electicity System. The fundamental objective is that policy decsions will be based of balanced judgements that take account of all requirements.

Cost, Security of Supply and emissions reduction should be assessed as part of a Total System Analysis.

The System should have an appropriate proportion of each type of electricity generation but not more than is appropriate. The reliable studies would provide information that would be used in making decisions about such proportionality.

The need for appropriate government action based on the principles set out in this document is manifest.



November 2018 Engineering for Energy A proposal for governance of the electricity system

January 2018 Spreadsheet for levelised cost An updated version of the IESIS levelised cost spreadsheet  by C Aris and C Gibson

July 2017 Quantitative assessment of the electricity sytem Papers on the electricity system by C Aris and C Gibson
Now published by IESIS

March 2016 Engineering Planning IESIS issues a new statement about the urgent need for engineeing plnanning of the electricity system

December 2015 Agenda article in The Herald on security of the electricity supply authored by IESIS fellow David Watson.

November 2015 Closure of Longannet represents a serious risk for Scotland

September 2015 A short paper about the need for assessment of the GB Electriciy System:

May 2015 A spreadsheet to estimate the extra cost of wind energy in the GB Electriciy System:

April 2015 A Message to all political parties regarding the actions that need to be take by the incoming Secretary of State for Energy

January 2015 A paper on Re-organising the GB Electricity System was been prepared for the Renewable Energy Foundation

October 2014 A paper on Engineering the GB Electricity System was published in the IESIS 2014 Journal

October 2014 The spreadsheet used used to calculate the risk to Security of Supply for the GB System 2014-2036 as quoted in the above document

October 2014 IESIS submission to House of Lords Call for Evidence about the resilience of the Electricity Infrastructure

September 2014 A presentation about the effect of wind energy in the Electricity System.