List of ELEXON insights

ELEXON produce a number of insight articles each year, usually prompted by significant events or changes within the electricity industry. Our authors are known for their impartiality, experience and knowledge and have access to a large amount of data to support their findings or comments.

Independent analysis backs the case for code reforms
Angela Love, Director of Strategy and Communications, discusses analysis which ELEXON commissioned from consultants, Cornwall Insight on options for reforming the energy codes. ELEXON has proposed a ‘three code’ model to consolidate existing codes and Cornwall Insight assessed this against other options
(Published: July 2019)

What is Driving Increases in Electricity Imbalance Volumes?
Daily average Energy Imbalance volumes have doubled between 2014 and 2019. Emma Tribe, investigates the drivers behind the increase in Energy Imbalance Volumes. The analysis demonstrates that increases in Imbalance Volumes have not affected the volume of energy used by National Grid to balance the system.
(Published: July 2019)

Imbalance Charging, where does the money go?
This article explains energy imbalance cash flow and how leftover amounts are redistributed among BSC Parties. It also highlights how we calculate payments that come into ELEXON and how, as a not-for-profit organisation the way they are calculated means we receive no financial gain.
(Published: June 2019)

ELEXON could provide settlement services for low carbon heat
In this Insight piece, Thomas Demetriades, Strategy Analyst, at ELEXON discusses the potential for more heat networks to be developed in Britain, and the support that ELEXON could offer towards this. 
(Published May 2019)

Rapid decline in coal-fired generation
In this Insight piece, Angus Fairbairn, Market Analyst at ELEXON, looks at the data behind the major reduction in coal generation in Britain which has been making headlines in April 2019 as the GB market aims to phase out the fuel by the end of 2025.
(Published: May 2019)

The Code Governance Review
ELEXON puts forward options for how the 11 existing gas and electricity codes could be simplified into three codes covering the retail, wholesale and networks sectors as a first step.
(Published: June 2017. Updated: May 2019)

Imbalance Prices go negative on 24 March 2019
The 24 March 2019 saw the longest continuous period of negative Imbalance Prices since a single Imbalance Price was introduced in November 2015. In this article Emma Tribe explains what negative Imbalance Prices are, when they have been occurring, and what ELEXON’s data shows about the trends.
(Published: April 2019)

Keeping costs down when Suppliers fail
Roger Harris, Market Operations Manager at ELEXON, looks at the number of recent Supplier failures and the issue of Supplier of Last Resort processes and costs.
(Published: March 2019)

Our views on the next network price controls
In this insight piece, Jeremy Caplin, Market Architect at ELEXON, talks about our response to Ofgem’s consultation on the methodology it will use to reset the network price controls from 2021.
(Published: March 2019)

Imbalance Prices with new CADL and DMAT
Emma Tribe’s insight article highlights the potential impact of changes to the De Minimis Acceptance Threshold and the Continuous Acceptance Duration Limit which take effect on 1 April 2019. The article explains the changes and includes interactive graphs to illustrate how these changes might affect Imbalance Prices.
(Published: March 2019)

System Prices in 2018 
Nick Baker, one of our Market Analysts, takes a detailed look at System Prices across 2018. What does the data tell us and were there circumstances that impacted on it?
(Published: January 2019)

Defaults and SoLRs increased in 2018
Emma Tribe, Business Intelligence Analyst, looks at the data behind the increase defaults and the 1.85% of electricity meters that have been transferred to a Supplier of Last Resort in 2018.
(Published: January 2019)

What’s the impact of changing DMAT and CADL? 
Emma Tribe’s insight article highlights the potential impact on prices of changing the De Minimis Acceptance Threshold and the Continuous Acceptance Duration Limit.
(Published: November 2018)

Reviewing our introduction seminar
Jessica Porter’s article explains what is involved on the day and how we use the feedback we receive to develop the event further and ensure we meet customer needs.
(Published: October 2018)

Negative short System Price on 18 September 2018
Emma Tribe’s article looks at Settlement Period 9 on 18 September 2018, when the System Price was -£6.25/MWh.
(Published: October 2018)

Audit results suggest issues for TAA Inspection Visits
PAB’s review of TAA Inspection Visits found that further active engagement with the process, on the part of Meter Operators, Registrants and Distributors is the key to improving rates of ‘no access’ on TAA Inspection Visits.
(Published: October 2018)

1 November 2018 changes to the System Price Calculation
Emma Tribe looks at how the November 2018 BSC Modification P305 changes can impact System Prices.
(Published: September 2018)

Unlocking the benefits to end consumers
Nick Rubin looks at the transformations and challenges that exist in the electricity market and considers ways of unlocking the benefits to end consumers.
(Published: September 2018)

Impact of temperature on System Prices
Thomas Demetriades looks at how the temperature influences the System Price. When we feel more extreme temperatures (temperatures greater than 25°C or lower than 5°C) the system is Short in 66% of Settlement Periods.
(Published: August 2018)

Replacement Price setting the Imbalance Price
Emma Tribe’s SPAR insight article looks at how often the Replacement Price is calculated using the Market Index Price (MIP). Where there are no priced actions, the Replacement Price sets the Imbalance Price.
(Published: July 2018)

How tagging changes the System Price
Emma Tribe’s SPAR insight article takes a detailed look at how tagging affects the System Price calculation. By removing volumes from the top or bottom of the pricing stack the System Price decreases or increases.
(Published: May 2018)

White paper on multiple providers
Jon Spence’s white paper offers an ELEXON view of how BSC central services could be adapted to offer Settlement solutions in support of individual customers buying electricity from more than one supplier.
(Published: April 2018)

Zonal Transmission Losses
This briefing note provides background information to the Competition and Markets Authority (CMA) remedy relating to the allocation of transmission losses set out in the CMA’s report of its investigation into the energy market.
(Published: April 2018)

System Prices from 2001 to 2016: a price for all seasons
Emma Tribe’s article, A price for all seasons, time travels with System Prices looking at seasonal trends from 2001 to 2016. It uses analysis from the System Price Analysis Report (SPAR) August 2017.
(Published: October 2017)

The BSC Panel, a template for panel constitution?
This Insight artcile looks at why the BSC Panel model is frequently cited as one of the better models for ensuring broad representation of stakeholders to feel they are engaged and their views understood within the code panel.
(Published: August 2017)

The Imbalance Price Olympics
Emma Tribe’s article highlights how the Imbalance Price made a high jump on 17 May 2017 as it rose above £1,000/MWh between 15:30 and 17:00. The high prices seen in this period were significantly different from £48.93/MWh, which is what the average System Price between 15:30 and 17:00 in May 2017 had been prior.
(Published: May 2017)

First day off for coal in 130 years
Emma Tribe and David Thomas write about Friday 21 April 2017 which was the first day in 130 years where no electricity was generated by coal in the UK. But what’s filling the gap
(Published: April 2017)

ELEXON insights: P305 post implementation review
Emma Tribe’s 12 month review of P305 is provided by ELEXON to contribute to all interested parties’ understanding of the BSC Modification. The review presents factual information rather than an assessment of the success of the Modification.
(Published: February 2017)

Getting the most from distributed energy resources 
This insight briefing highlights how policy is driving great change, in particular at the local level with: subsidies driving increasing distributed generation; the encouragement of greater electrification of transport and heat creating opportunities for distributed storage; as well as the prospective rollout of Smart Meters capable of providing halfhour interval data, which helps open the door to time of use tariffs and greater demand-side response.
(Published: March 2015)

Encouraging local energy supply through a local balancing unit 
This insight briefing highlights how the Community Energy Strategy, published by the government, has confirmed it would like to see the formation of decentralised energy markets. We take a look at how a minor change to the current rules might help nurture local energy supply.
(Published: March 2015)

Maximising the value from Demand Side Response (DSR)
This insight briefing looks at the value and  use of Demand Side Response (DSR) in the electricity market which is expected to grow over the period to 2030. New market models, that coordinate and optimise its use, are needed to ensure customers get the full benefits.
(Published: March 2015)

Electricity storage in the GB market 
This insight briefing considers the conventional GB electricity market model of large scale, controllable, thermal generation operating to meet predictable patterns of demand which is becoming less relevant as the penetration of low carbon generation technologies increases and the advance of ‘smart’ technologies changes patterns of consumption
(Published: March 2015)

Active management of distributed generation 
This ELEXON insight briefing considers how the commercial arrangements needed to support the UK Government’s commitment to reduce greenhouse gas emissions by at least 80% by 2050, could develop. 
(Published: March 2015)



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