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Publications library

We've got a wide range of publications offering energy insights and analysis. Download our reports and data to see the innovative ways we are transforming the future of Great Britain’s energy. 

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Whole energy system
tCSNP2 Refresh Annex 6 – Competition – Draft issue 10.1 – December 2024
Discusses how options are assessed to determine eligibility for competition
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Whole energy system
tCSNP2 Refresh Annex 5 – Options Assessment – Draft issue 10.1 – December 2024
Details the core options assessment process and how options are recommended
Document
Whole energy system
tCSNP2 Refresh Annex 4 – QA Check Methodology – Draft issue 10.1 – December 2024
Details the checks and processes to ensure data quality of options developed before options assessment process
Document
Whole energy system
tCSNP2 Refresh Annex 3 – Options Development – Draft issue 10.1 – December 2024
Discusses how options are developed for inclusion in the options assessment process
Document
Whole energy system
SEP Industry Working Group Terms of Reference – November 2024
Terms of Reference for the Strategic Energy Planning Industry Working Group
Document
Whole energy system
Gas Network Capability Needs Report (GNCNR) 2024 - Interactive
Interactive version of the GNCNR 2024, presenting our analysis of the NTS and its capability to meet Great Britain's current and future gas needs.
Document
Whole energy system
Gas Network Capability Needs Report (GNCNR) 2024 - Print-friendly
Print-friendly version of the GNCNR 2024, presenting our analysis of the NTS and its capability to meet Great Britain's current and future gas needs.
Document
Whole energy system
Gas Network Capability Needs Report (GNCNR) Methodology 2024
This technical report details the methodology behind our analysis for the physical capability of the National Transmission System.
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Whole energy system
Gas Network Capability Needs Report (GNCNR) Data Workbook 2024
The charts and supporting data from our modelling published in our Gas Network Capability Needs Report 2024.
Document
Whole energy system
RESP consultation response
NESO's response to Ofgem consultation on Regional Energy Strategic Planning (RESP)
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Publications library

We've got a wide range of publications offering energy insights and analysis.
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Beyond 2030

The Beyond 2030 report builds on the Holistic Network Design (HND) and makes a set of network recommendations throughout the 2030s.
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Future Energy Scenarios (FES)

Future Energy Scenarios (FES) 2024: NESO Pathways to Net Zero represent different, credible ways to decarbonise our energy system as we strive towards the 2050 target.
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Network Options Assessment (NOA)

The Network Options Assessment (NOA) provides our recommendation for which network reinforcement projects should receive investment, and when.
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Clean Power 2030

As the National Energy System Operator (NESO), part of our role is to provide impartial advice to HM Government and the regulator on what is required to securely accelerate the transition away from fossil fuels.
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Electricity Ten Year Statement (ETYS)

The ETYS is our view of future transmission requirements and capability of Great Britain’s National Electricity Transmission System.
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GB 36 Bus electricity transmission network model

The National Electricity Transmission System (NETS) of Great Britain was modelled with precision in DIgSILENT PowerFactory, using a 36-bus equivalent network.
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Markets Roadmap

We are committed to working together with stakeholders as we reform our markets to be fit for a net zero future. We share information on this transition at regular Markets Forums and through our annual Markets Roadmap.
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Summer Outlook

Our Summer Outlook reports are designed to inform the energy industry and support its preparations. They also outline Great Britain’s projected electricity needs for the summer ahead.
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Winter Outlook

The Winter Outlook report presents our view of the security of supply for the electricity systems for the winter ahead.
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Whole electricity system

The journey to creating an energy system fit for the future wouldn’t be possible without close collaboration with industry partners to help the transition.
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System Operability Framework (SOF)

The System Operability Framework (SOF) takes a holistic view of the changing energy landscape to assess the future operation of Britain's electricity networks.
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Regional Development Programmes (RDPs)

RDPs look across the whole electricity system to unlock more network capacity, reduce constraints, and create new revenue opportunities for market participants.