v3.24.1.1.u2
Investments in joint ventures and associates - Disclosure of detailed information about joint ventures and associates (Details) - GBP (£)
£ in Millions
 12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2021
Statement of financial position        
Non-current assets £ 87,946 £ 83,584 £ 76,897  
Cash and cash equivalents 559 163 204 £ 157
Non-current liabilities (57,044) (54,005)    
Current liabilities (11,389) (9,130)    
Total assets (liabilities) 29,892 29,562    
Income statement        
Revenue 19,850 21,659 18,449  
Operating profit 4,475 4,879 4,371  
Profit before tax 3,048 3,590 3,441  
Tax (831) (876) (1,258)  
Profit after tax from continuing operations 2,217 2,714 2,183  
Group’s share of profit/(loss) 37 171 £ 92  
BritNed Development Limited        
Statement of financial position        
Non-current assets 376 397    
Cash and cash equivalents 69 208    
All other current assets 36 29    
Non-current liabilities (57) (55)    
Non-current financial liabilities (31) (31)    
Current liabilities (39) (34)    
Current financial liabilities 0 0    
Total assets (liabilities) 354 514    
Group’s ownership interest in joint venture/associate 177 257    
Group adjustment: elimination of profits on sales to joint venture 0 0    
Carrying amount of the Group’s investment 177 257    
Income statement        
Revenue 158 358    
Depreciation and amortisation (16) (16)    
Other (costs)/income (25) 22    
Operating profit 117 364    
Net interest expense (2) (2)    
Profit before tax 115 362    
Tax (31) (82)    
Profit after tax from continuing operations 84 280    
Group’s share of profit/(loss) 42 140    
Group adjustment: tax credit 0 0    
Group’s share of post-tax results for the year 42 140    
Nemo Link Limited        
Statement of financial position        
Non-current assets 478 514    
Cash and cash equivalents 46 77    
All other current assets 6 8    
Non-current liabilities (3) (3)    
Non-current financial liabilities (32) (32)    
Current liabilities (55) (131)    
Current financial liabilities 0 0    
Total assets (liabilities) 440 433    
Group’s ownership interest in joint venture/associate 220 217    
Group adjustment: elimination of profits on sales to joint venture 0 0    
Carrying amount of the Group’s investment 220 217    
Income statement        
Revenue 109 88    
Depreciation and amortisation (23) (23)    
Other (costs)/income (15) (1)    
Operating profit 71 64    
Net interest expense 0 (7)    
Profit before tax 71 57    
Tax (17) (11)    
Profit after tax from continuing operations 54 46    
Group’s share of profit/(loss) 27 23    
Group adjustment: tax credit 0 0    
Group’s share of post-tax results for the year 27 23    
Emerald Energy Venture LLC        
Statement of financial position        
Non-current assets 2,171 1,598    
Cash and cash equivalents 206 169    
All other current assets 16 14    
Non-current liabilities (249) (244)    
Non-current financial liabilities (643) (398)    
Current liabilities (217) (131)    
Current financial liabilities (10) (95)    
Total assets (liabilities) 1,274 913    
Group’s ownership interest in joint venture/associate 650 466    
Group adjustment: elimination of profits on sales to joint venture (123) (85)    
Carrying amount of the Group’s investment 527 381    
Income statement        
Revenue 87 75    
Depreciation and amortisation (38) (29)    
Other (costs)/income (152) (46)    
Operating profit (103) 0    
Net interest expense (9) (6)    
Profit before tax (112) (6)    
Tax 0 0    
Profit after tax from continuing operations (112) (6)    
Group’s share of profit/(loss) (57) (3)    
Group adjustment: tax credit 15 1    
Group’s share of post-tax results for the year (42) (2)    
Community Offshore Wind LLC        
Statement of financial position        
Non-current assets 1,005 925    
Cash and cash equivalents 40 19    
All other current assets 42 0    
Non-current liabilities (20) (19)    
Non-current financial liabilities 0 0    
Current liabilities (1) (3)    
Current financial liabilities 0 0    
Total assets (liabilities) 1,066 922    
Group’s ownership interest in joint venture/associate 291 251    
Group adjustment: elimination of profits on sales to joint venture 0 0    
Carrying amount of the Group’s investment 291 251    
Income statement        
Revenue 0 0    
Depreciation and amortisation 0 0    
Other (costs)/income 0 1    
Operating profit 0 1    
Net interest expense 0 0    
Profit before tax 0 1    
Tax 0 0    
Profit after tax from continuing operations 0 1    
Group’s share of profit/(loss) 0 0    
Group adjustment: tax credit 0 0    
Group’s share of post-tax results for the year £ 0 £ 0