// definition
Cushion gas
Base inventory supporting storage operation
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Short definition
Gas intended to remain in a storage reservoir to maintain the pressure and deliverability needed for operation. It is normally retained throughout injection and withdrawal cycles. Working gas is measured above this base inventory.
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Primary sources
- JRC, EU Gas Transmission Network Facilities Review, 2020Section 3.3, p. 11–12: cushion gas supports pressure and deliverability. Technical definitions without reusing the 2020 facility inventory.