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Pixie Chart of the Week

2019

DNOs realise mixed flexibility procurement results

Sam Peek Analyst

The Energy Networks Association (ENA) has compiled the flexibility procurement timetables for all distribution network operators (DNOs) in Great Britain. The schedule highlights DNO flexibility procurement between 2018 and 2020. This week’s chart summarises the buying timeline and the subsequent phases of progression, split between communication of the procurement requirement, tendering and results. It also distinguishes between different flexibility services. Notably, different DNOs have opted to procure different types of flexibility services reflecting the constraints and dynamics of their system. For example, Western Power Distribution secured pre- and post-fault procurement and restoration support throughout the reporting period. UK Power Networks (UKPN) have consistently procured multiple flexibility services, with 70MW of registered flexibility, as highlighted in its flexibility procurement post tender submission market report for 2018/19. Over this period, UKPN were largely successful in their submissions, registering >6,000 assets across 28 flexibility zones to help serve 478,000 customers. Electricity North West (ENWL) are shown to have secured restoration support - which involves supporting the network to reduce stress in the event of equipment failure - in the first half of 2019. Despite initial success, ENWL have been unable to procure flexibility for the remainder of 2019. This is likely due to tender responses from flexibility providers not meeting predetermined criteria, such as the minimum amount of flexibility. A review of the need for this flexibility, will be conducted for Alston, Coniston and Easton, this is set for completion in Autumn 2019. NPG and WPD are yet to publish their results, these being anticipated between September and October 2019. ...

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