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Published byRodger Armstrong Modified over 9 years ago
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TRANSACTION AND INDUSTRY REVIEW CONFERENCE NIGERIAN POWER SECTOR REFORM: AN OVERVIEW OF TCN AGREEMENTS
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OUTLINE INTRODUCTION CONNECTION AND INTERFACE AGREEMENT USE OF TRANSMISSION NETWORK AGREEMENT ANCILLARY SERVICES AGREEMENT CONCLUSION
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INTRODUCTION Applicable contracts: Connection and Interface Agreement (CIA) Use of Transmission Network System Agreement (TUOS) Ancillary Services Agreement (ASA)
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CONNECTION AND INTERFACE AGREEMENT (CIA) CIA -A framework further to which site specific Agreements will be executed -Relates to the rights and obligations of parties to connect to the Transmission Network System. -Executed between TCN as Service Providers and Users of Transmission Network System. -Applies to user(s) who: -has a direct connection of at least 11kv network supply; or - an export or import capacity of at least 1mw.
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CIA CONT’D Key provisions Charges (Clause 7 of the CIA): - to be determined periodically between TSP and NERC. - payment made on or before end of the first month of a new calendar year. - Payment shall be made once annually or as agreed by parties.
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CIA CONT’D Right of access (Clause 11) - unhindered access granted to equipment of another party upon reasonable notification (except in emergencies). - This right extends to nominated third parties and contractors. Commercial and tariff metering (Clause 22 ) - Shall be exclusively for registering the quantity of energy that passes across the connection point. - Only NERC licenced personnel are authorised to install, operate and maintain such meters.
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CIA CONT’D Interface management Parties to jointly nominate an interface manager to oversee the implementation and maintenance of the interface management on the connection site. Other key provisions -Connection and energisation, - Metering - Modifications -Operational metering -Restriction on title holders right -Relocation -De-energisation and disclosure -Decommissioning -Dispute Resolution.
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USE OF TRANSMISSION NETWORK AGREEMENT (TUOS) TUOS Relates to the rights and obligations of parties arising from the use of the Transmission Network System. Applies to user(s) whose equipment has: – a direct connection of at least 11kV network supply; or – an export or import capacity of at least 50 kV A.
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TUOS CONT’D Key provisions of TUOS Charges (Clause 8) - Right to use arises only upon payment of the Transmission Network Charge. - The charge shall be an annual payment prorated on a monthly basis. - Based on agreement of parties it may also include one-off charges. - The User is mandated to provide a security cover which will be resorted to in the event of User’s default. - The security cover shall be determined and approved by NERC.
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TUOS CONT’D Safety Rules (Clause 13): - Parties mandated to provide copies of their safety rules and local safety instructions to each other. - The SO and User are mandated to each appoint a Safety Coordinator to oversee safety precautions whenever work on the network De-energisation & disconnection (Clause 14): - material breach by a User that will entitle the TSP to de-energise the User’s apparatus. - If the breach is not remedied for a period of 6 months, TSP may declare such breach an event of default which may lead to termination and disconnection of the User’s apparatus.
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TUOS CONT’D Assignment and sub-contracting (Clause 26): - Assignment by parties of rights and obligations must first be approved by both NERC and the other party. - TCN has the right to novate its rights and obligations to an Independent System Operator. Other key provisions: -Operations -Right of access -Dispute resolution -Terms and termination -Force majeure -
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PRE-TRANSITION RESERVE AND FREQUENCY CONTROL CONTRACT ( ANCILLARY SERVICES AGREEMENT) ANCILLARY SERVICES AGREEMENT – Relates to the provision of certain ancillary services that are key to overall system stability. – These services include: Operating reserve Frequency regulation Voltage regulation Black start capability - Grid Code mandates the SO to procure the above ancillary services. - The SO is the buyer and the Service provider is the seller of the ancillary service.
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ANCILLARY SERVICE AGREEMENT CONT’D Key provisions of ASA -Reserve capability -Reserve instruction -Operational information flow -Burden of proof- -Frequency control -Price - -Reserve provided -Taxes -Payment
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CONCLUSION THANK YOU
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