Transcript Document

Econnect Ltd
Independent specialists in
the grid integration of
renewable energy...
Grid - Overview
Guy Nicholson
Managing Director
Content
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Generation Licence exemption.
Scottish Grid Code.
England and Wales Grid Code.
Generic Grid Code issues.
Governance issues.
Rewiring Britain.
Generation Licence exemption
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Generation Licence Thresholds.
Drivers behind Licensing.
Licence exemption for 50-100MW.
NGT requirements.
Ways forward.
Scottish Grid Code
• Submitted to Ofgem by the Panel in
December 2002.
• Panel not in agreement over proposals.
• Ofgem can accept; reject (all or part);
consult.
• BWEA to meet Ofgem on 7th May to
outline the difficulties and propose a
route map forward.
England and Wales Grid Code
• Applicability.
• Traditionally new and renewable energy
sources have been exempted from the
Code.
• Generic Provisions Working Group.
Generic Issues (technical)
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Frequency range.
Frequency response (governor action).
Voltage range.
Voltage control / reactive capability.
Fault response.
Generic Issues (generators)
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New requirements are volte face.
International drivers.
Generators want to do it too.
DFIGs are not (yet?) a panacea.
Generic Issues (Governance)
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Grid code review panels.
Bilateral and conditions on exemption.
“Guidance Notes”.
Rules vs. markets.
E.g. DC interconnector.
Rewiring Britain (1)
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Is rewiring necessary?
Active networks.
Deep or shallow connection charging.
Distribution price control review 1995.
Use of system charges and access
arrangements.
• Transmission losses.
Rewiring Britain (2)
• Where is rewiring necessary?
• Strategic investments to access
resources.
• Who will pay? Generators, customers,
network owners, government,
entrepreneurial third parties?
• Extension of licence areas for
transmission and distribution should be
investigated.
Conclusions
• Grid code requirements should be dealt
with on an integrated GB wide basis.
• BWEA will lead with a route map for
code changes and timescales.
• Governance must not be bypassed.
• New charging regimes need to be
assessed for impacts on renewables.
• Start work on strategic reinforcements.