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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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Stability market
Stability Mid-Term Market Technical Specification
An overview of the technical requirements and specification which solutions are required to meet for the second round of the Mid-Term (Y-1) Stability Market.
Document
Stability market
Stability Mid-Term Market Technical Eligibility Criteria
An overview of the eligibility criteria that each proposed solution must fulfil to participate in the second round of the Mid-Term (Y-1) Stability Market.
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Stability market
Stability Mid-Term Market Contract Award Criteria
An overview of the contract award criteria and assessment methodology which the Mid-Term (Y-1) Stability Market tender will implement.
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Stability market
Stability Mid-Term Market Consultation Proforma
An optional consultation proforma in which bidders are encouraged to provide NESO feedback on its proposed approach to the procurement.
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Stability market
08. Mid-Term Stability Market 25/26 Indicative Payment Calculator V3
ITT documents suite
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Stability market
10. Mid-Term Stability Market Acceptable Security ESO Drafts
ITT documents suite
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Stability market
07. Mid-Term Stability Market Contract
ITT documents suite
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Stability market
06. Mid-Term Stability Market 25/26 Feasibility Study Requirements
ITT documents suite
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Stability market
05. Mid-Term Stability Market 25/26 Technical Eligibility Criteria V3
ITT documents suite
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Stability market
04. Mid-Term Stability Market 25/26 Technical Specification v5
ITT documents suite
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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.