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CIGRE Belgium presentation on Actively Managing Distribution Connected Generation
The document details a conference presentation on managing distribution connected generation and associated constraints in the UK energy sector. It outlines the problems faced, such as high connection charges and multiple issues during contingencies, and proposes a solution involving an actively managed network funded by a project aimed at accelerating renewable connections. Key commercial arrangements include non-firm connection agreements and efforts to manage constraints across system boundaries.
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CIGRE Belgium presentation on Actively Managing Distribution Connected Generation
- 1. v Brussels Conference 12-13March 2014 - 1 - CIGREBELGIUM2014Conference ACTIVELY MANAGING DISTRIBUTION CONNECTED GENERATION FEEDING INTO DISTRIBUTION AND TRANSMISSION CONTRAINTS Session 1B / R Anderson & A Gooding / United Kingdom
- 2. v Brussels Conference 12-13March 2014 - 2 - CIGREBELGIUM2014Conference Iberdrola at a Glance Presence in 40 countries worldwide
- 3. v Brussels Conference 12-13March 2014 - 3 - CIGREBELGIUM2014Conference SP Energy Networks Overview • Distribution Assets - 3.5m connected customers - 16% of annual electricity bill - Host 28% of UK’s distributed renewable generation but only 14% of customer base • Transmission Assets (Scotland) - 4% of annual electricity bill - 56% of Scotland’s transmission connected renewable generation
- 4. v Brussels Conference 12-13March 2014 - 4 - CIGREBELGIUM2014Conference Agenda • Background • The Problem • The Solution
- 5. v Brussels Conference 12-13March 2014 - 5 - CIGREBELGIUM2014Conference Problem Trial Area
- 6. v Brussels Conference 12-13March 2014 - 6 - CIGREBELGIUM2014Conference Problem
- 7. v Brussels Conference 12-13March 2014 - 7 - CIGREBELGIUM2014Conference The Problem • Exporting Grid Supply Point • Multiple issues during N-1 Contingencies • High cost connection charges as a consequence of thermal constraints • High cost connection charges as a consequence of voltage rise constraints • The impact of Small Scale Generation on the Exporting GSP
- 8. v Brussels Conference 12-13March 2014 - 8 - CIGREBELGIUM2014Conference 60 MVA Limit Firm Capacity Calculated based upon Maximum Generation / Minimum Demand Managing Constraints at GSP 120 MVA Limit 62 MW Unconstrained Grid Supply Point 132kV 33kV Transmission Network Distribution Network Demand Min 10 MW – Max 36 MW Max Generation Min Demand Network Capacity Available Capacity Fully Intact 110 MVA 10 MVA 120 MVA + 20 MVA N-1 110 MVA 10 MVA 60 MVA - 40 MVA 48 MW Constrained 9 MW ANM Controlled 27 MW ANM Controlled
- 9. v Brussels Conference 12-13March 2014 - 9 - CIGREBELGIUM2014Conference Managing Constraints at GSP Connection Transmission Reinforcement Cost Estimate - £20M Connection Date beyond 2020 Both New Sites Have Planning! 62 MW Unconstrained Transmission Network Demand Min 10 MW – Max 36 MW 120 MVA Limit 90MVA90MVA 48 MW Constrained 9 MW ANM Controlled 27 MW ANM Controlled
- 10. v Brussels Conference 12-13March 2014 - 10 - CIGREBELGIUM2014Conference The Solution • Accelerating Renewable Connections www.arc-project.com • £8.4M project funded through the Low Carbon Network Fund managed by OFGEM • Project Partners
- 11. v Brussels Conference 12-13March 2014 - 11 - CIGREBELGIUM2014Conference The Solution
- 12. v Brussels Conference 12-13March 2014 - 12 - CIGREBELGIUM2014Conference The Solution Requirements for an Actively Managed Network: • Operate autonomously • Hard real time • End to end determinism • State driven logic • Constant idling rather then event initiated • Predictable and repeatedly able to handle relationships between multiple devices and multiple constraints
- 13. v Brussels Conference 12-13March 2014 - 13 - CIGREBELGIUM2014Conference The Solution – A New Layer
- 14. v Brussels Conference 12-13March 2014 - 14 - CIGREBELGIUM2014Conference The Solution – Top Down ANM 132/33kV 60MVA 132/33kV 60MVA Wind Farm 1 62.5 MW 33/11kV 7.5MVA 33/11kV 7.5MVA 5 MW 22.5 MWWind Farm 2 48 MW 33/11kV33/11kV Wind Farm 3 9 MW Energy From Waste Plant 3 3 3 MP1 MP2 MP3 MP4 = MP1 + MP2 Existing Communications 8.5 MW
- 15. v Brussels Conference 12-13March 2014 - 15 - CIGREBELGIUM2014Conference The Solution Commercial Arrangements: • Non-Firm connection agreements - Estimation of annual curtailment - No compensation for curtailment (Up front benefit banked!) • Managing constraints across boundaries - Agreement with the TNO and TSO to manage constraints created by distribution connected generation • Investigating new community connection to encourage local demand or storage interaction
- 16. v Brussels Conference 12-13March 2014 - 16 - CIGREBELGIUM2014Conference The Solution
- 17. v Brussels Conference 12-13March 2014 - 17 - CIGREBELGIUM2014Conference The Solution Thank You Alan Gooding Commercial Director, Smarter Grid Solutions www.smartergridsolutions.com Ross Anderson Senior Design Engineer, SP Energy Networks www.spenergynetworks.co.uk