http://pennongroupplc.com/xbrl/2026/20260331 (26907A4B) 2026-03-31_PENNONGROUPPLC_report XBRL Taxonomy prepared for the European Standard Electronic Format 2026-03-31 PENNON GROUP PLC http://pennongroupplc.com/xbrl/2026 GB 2026-06-11 PENNON GROUP PLC XBRL Taxonomy for 2026-03-31 PENNON GROUP PLC XBRL report for 2026-03-31 en