Impact of Distributed Gas Sources on the GB Gas Network
National Grid Gas Distribution, SGN and Wales and West Utilities
National Grid Gas – Lorna Millington / Robert Cairns – lead GDN, SGN – Alexander Webb, Wales & West Utilities – Richard Pomroy
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Network Innovation Allowance
Gas Distribution Networks
- Location, Timing of coal bed methane and shale gas sources, broad rollout pathways for other sources.
- Properties of sources (CV, pressure, flow rates, profiles etc.)
- Development of distributed sources and gas network archetypes
- Review of International Best Practice, solutions, economics and barriers to incorporating new distributed gas sources
- Focus on Australia (CBM), US (Shale), France (Anaerobic Digestion)
- Consultation with Industry and other stakeholders to understand the barriers to connection of new distributed sources
- Categorisation of barriers by technology type and gas sources characteristics
- First Stage of technology filtering, matching sources archetypes to network pressure/type for in-depth analysis
- Techno-economic analysis of impacts of new sources on the UK gas network (generic and case study), including practical implications, assessment of regulatory and policy implications/barriers
- Specification for technical solutions, ranked by NPV and other key matrices
- Assessment of new/alternative commercial models and updated regulatory/policy requirements to facilitate the introduction of new distributed gas sources
- Presentation of ranked scenarios
- Strategic impacts assessment, including costing analysis
- Report on implications of findings, presentation and recommendation for future developments
Within each phase specific objectives will be delivered including:
- Produce scenarios for the deployment of coal bed methane and shale gas from 2015-2050 (with increased granularity in the period 2015-2025)
- Show High-level trajectories for the rollout of biogas and bio-SNG
- Develop archetypes for characterising the properties of new distributed gas sources
- Produce a set of network archetypes, relevant to the various distributed gas sources
- Report on international best practice in connecting new distributed gas sources to the gas grid and lessons learned for the GB gas network
- Report highlighting the technical, practical barriers, regulatory and commercial barriers to the connection of new distributed gas sources to the grid, and best practice in overcoming those barriers, or where no existing solutions exist, recommendations for overcoming them
- Present ranked technical solutions by net present value, with additional outputs on annual operating cost, and pressure at each customer node for each supply/demand case. Sensitivity of these variables to change in inputs.
- Produce up to three case studies on the connection of known distributed gas sources to local distribution networks to demonstrate the application of the techno-economic model to real world scenarios
- List of any new or alternative commercial arrangements that may be necessary to support the connection of new distributed gas sources to the gas network.
- List of any new policy mechanisms or regulatory changes that may be required to facilitate these new/modified commercial arrangements.
- Produce a finalised list of technical and commercial solutions for incorporating new distributed gas sources at different, tailored to specific GDNs where appropriate
- Prioritise regulatory changes or new/revised commercial arrangements that could help GB to maximise the benefits/minimise the impacts of connecting new gas sources.
- Clear and timed next steps for GB Networks in accommodating new distributed gas sources
Produce an evidence based requirements and strategic impact assessment for GB Network Stakeholders to better understand the implications of new distributed gas sources, both on an individual project, based on high level assessment, on a strategic long-term planning basis, and to develop well-grounded short and medium-long-term plans for dealing with this major change to existing gas energy markets.