Previous ECO4 Flex statements of intent View previous versions of the statement: ECO4 Flex Statement of Intent - 26 October 2023 (PDF 220 KB) ECO4 Flex Statement of Intent - 28 August 2023 (PDF 692 KB) ECO4 Flex Statement of Intent - 17 May 2023 (PDF 512 KB) ECO4 Flex Statement of Intent - 15 February 2023 (PDF 476 KB)