Colleagues discussing Green energy project on iPad

FES 2023 Stakeholder Feedback Document

Following a busy year of engagements and the Call for Evidence (CfE) last October, we are pleased to publish the full Stakeholder Feedback Document (SFD) for FES 2023. Thanks to all our stakeholders that engage throughout the FES cycle and to those that fed back via the Call for Evidence. 

The SFD sets out the proposed scenario framework and scenarios for FES 2023 and shares the detail of our engagement that took place from springtime 2022 to January 2023 and how we are taking it forward.

Engagement is fundamental to the annual FES cycle and together with our research, modelling and expertise allows us to set out the credible range of scenarios for the future of energy. We showed in the document a summary of the views and evidence we heard from stakeholders, how we have taken these forward and the decisions at which we have arrived. Further in the document we provided a detailed breakdown of insights gathered from stakeholders and our communication and engagement activities.

We welcome feedback all year round to: [email protected]

Colleagues discussing Green energy project on iPad

Summary of responses to the FES 2023 Call for Evidence

The Call for Evidence closed at the end of October. Thanks to all those that replied. We have produced a summary of the responses we received from stakeholders.

We welcome feedback all year round to: [email protected]

Energy articles

View our recent Thought Pieces written by our team of Insight Leads exploring a range of subjects in greater depth.

We are keen to hear from you and gather feedback on our latest thought piece, "Consumer flexibility in FES and how it is changing." Please do provide your comments via this short form.

Consumer flexibility in FES and how it is changing

In this article, we consider the importance of consumer flexibility in reaching net zero, as well as how Demand Side Response (DSR) services can benefit both consumers and the ESO. With the launch of the Demand Flexibility Service (DFS) in November 2022, consumers have been able to engage with the energy transition in an entirely new way.

A week in the life of a net zero carbon electricity system in 2035

This article details how a net zero carbon system could be operated and what is happening within our hourly dispatch modelling. We also hosted a webinar on this article in March 2023.

Consumer archetypes

In this article, we explore how consumer behaviour plays a vital role in our transition to Net Zero. By considering the different types of consumers across the UK, we can ensure that the journey to Net Zero is fair for everyone.

Electricity Storage

Electricity storage is vital for the transition to a net-zero system by 2050. In this article, we explore the current landscape and the potential future credible pathways of electricity storage to 2050.

Spatial Heat results

This new thought piece builds on the first one published in December and continues to explore our heat decarbonisation modelling. We also present the main drivers for regional variations in low carbon heating technology deployment between now and 2035.

Data centre

Data centres are energy intensive and very important to the digitisation of society and the establishment of a smart energy system. In this article we explore the current landscape and the future potential for growth.

10 years of Future Energy Scenarios

In this article, Dan Murrant Insight Lead from the team, takes a look back at the last 10 years of Future Energy Scenarios in terms of the scenarios modelled, its interaction with policy and how the future view of some technologies has evolved.

Regional Modelling in FES

This thought piece builds on our previous publication exploring our heat decarbonisation modelling and introducing our new regional heat model, as well as explaining in more depth the assumptions that were presented in our FES 2021 publication.

Spatial Heat Model

In this article, we introduce our new Regional Heat Model and explain both how this moves forward our analysis of heat decarbonisation options and what this means for FES 2021

Societal change

Considering the changes which consumers – and all of society – will need to make to reach net zero and how this will impact the energy system.

Negative Emissions

Exploring the role of negative emissions in meeting net zero.

Clean Heat

Exploring the options for heat decarbonisation and their implications for electricity and gas system operation

Net Zero

What does net zero mean for the energy system?


Introducing energy system flexibility, what is it and why do energy systems need it?