KCP-EEN-PEQ-DPR-0004 Rev.: 03

Project Title: Kingsnorth Carbon Capture & Storage Project Page 1 of 1

Document Title: Offshore Instrument Air Systems Design Philosophy

Kingsnorth CCS Demonstration Project The information contained in this document (the Information) is provided in good faith. E.ON UK plc, its subcontractors, subsidiaries, aff i l iates, employees, advisers, and the Department of Energy and Climate Change (DECC) make no representation or warranty as to the accuracy, reliabil ity or completeness of the Information and neither E.ON UK plc nor any of its subcontractors, subsidiaries, aff i l iates, employees, advisers or DECC shall have any l iabi l ity whatsoever for any direct or indirect loss howsoever arising from the use of the Information by any party.

Offshore Instrument Air Systems Design Philosophy Table of Contents 1 Scope and Functional Requirements ......................................................... 2 2 Assumptions .............................................................................................. 2 3 Design Requirements ................................................................................ 2 4 Mandatory References ............................................................................... 2 5 Supporting References .............................................................................. 2 Sch 7 ref.: 6.54 Approved for Knowledge Transfer

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KCP-EEN-PEQ-DPR-0004 Rev.: 03

Project Title: Kingsnorth Carbon Capture & Storage Project Page 2 of 2

Document Title: Offshore Instrument Air Systems Design Philosophy

Kingsnorth CCS Demonstration Project The information contained in this document (the Information) is provided in good faith. E.ON UK plc, its subcontractors, subsidiaries, aff i l iates, employees, advisers, and the Department of Energy and Climate Change (DECC) make no representation or warranty as to the accuracy, reliabil ity or completeness of the Information and neither E.ON UK plc nor any of its subcontractors, subsidiaries, aff i l iates, employees, advisers or DECC shall have any l iabi l ity whatsoever for any direct or indirect loss howsoever arising from the use of the Information by any party.

1 Scope and Functional Requirements This Design Philosophy provides a description of the Offshore Instrument Air System for the Kingsnorth Carbon Capture Storage (CCS) Project. This document shall be used as the basis for FEED and the development of the conceptual design for the complete CCS chain (power plant, capture plant, compression, transportation, offshore infrastructure, wells and storage) for subsequent use in the detailed design and implementation phase. The Design Philosophy ensures that a consistent approach to the subject matter is taken by all parties throughout the design, construction and operation phases of the project. Ancillary documents referred to in this Design Philosophy are mandatory reading as these documents contain more detailed explanation of the subject matter than the summary contained herein.

2 Assumptions The valves on the offshore platform (slam-shut valves, subsurface slam-shut valves) will be of own-medium-controlled type using the pressure of the storage wells.

3 Design Requirements The Offshore Instrument Air System is applicable for the offshore facilities only. As on the wellhead platform no instrumentation requiring instrument air exists (see Assumptions) the Instrument Air System is not needed.

4 Mandatory References None

5 Supporting References [S1] KCP-EEN-PEQ-DPR-0001- Full System Metering

Philosophy [S2] KCP-EEN-PEQ-DPR-0002- Transport & Storage System

Control Philosophy [S3] KCP-ENT-INC-DPR-0001-Overall C&I System &

Integration Philosophy [S4] KCP-EEN-PEQ-DPR-0003 - Full System Leak Detection

Philosophy

1 Scope and Functional Requirements2 Assumptions3 Design Requirements4 Mandatory References5 Supporting References