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LNG Storage Allocations in an Emergency

LNG Storage Allocations in an Emergency. Heather Lockyer – National Grid LNG Storage. Existing UNC. Z6.7.1 states that during an Emergency…

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LNG Storage Allocations in an Emergency

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  1. LNG Storage Allocations in an Emergency Heather Lockyer – National Grid LNG Storage

  2. Existing UNC • Z6.7.1 states that during an Emergency… • …notwithstanding Users' Nominations in respect of such Day…the aggregate quantity withdrawn on such Day will be apportioned between Users in the proportions in which they have gas-in-storage on such Day. Possibly leading to (when the NEC requests flows are reduced) ….. • Users with no nomination allocated gas • Users with nominations allocated less than expected

  3. Proposed Change • Retain existing rules for increase in flow • For reduction in flow: • Allocate according to nominations up to point when Emergency Instruction takes effect e.g. User noms 24 units from 06:00 and then 60 from 12:00, Emergency Instruction to stop flowing at 18:00. Flow 1/hour for 6 hours (06:00 – 12:00) 3/hour for 6 hours (12:00 – 18:00) => Allocation = 24

  4. Proposed Change cont.. • If requested to continue flowing after Emergency Instruction (at reduced rate) could allocate: • Pro-rata using existing latest noms • Pro-rata flows using booked deliverability (as for CLNG) • Pro-rata using stock levels

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