17 Other liabilities

Other liabilities have been broken down into their respective contents and counterparties in the tables below. The hedging relationship has also been stated in the case of derivative financial instruments.

Other liabilities

 
  30.9.2009 30.9.2008  
Euro 000s Non-
current		 Current

 Total

 Non-
current		 Current

 Total

 
Derivative financial instruments 355 649  155 401  511 050  192 407  122 320  314 727  
Advance payments received — 36 156  36 156  523  25 572  26 095  
Deferred income and accrued expenses 16 246  12 647  28 893  18 944  9 050  27 994  
Interest liabilities — 7 512  7 512  —  4 098  4 098  
Customer credit balances — 7 490  7 490  —  4 380  4 380  
Concession duties — 1 659  1 659  —  11 665  11 665  
Social security liabilities — 237  237  —  294  294  
Liabilities for security deposits for energy trading transactions — — — — 44 386  44 386  
Miscellaneous other liabilities 4 231  22 518  26 749  1 924  27 261  29 185  
  376 126  243 620  619 746  213 798  249 026  462 824  

Liabilities

 
  30.9.2009 30.9.2008  
Euro 000s Non-
current		 Current

 Total

 Non-
current		 Current

 Total

 
Liabilities             
to third parties 374 286  204 925  579 211  212 967  216 656  429 623  
to majority shareholdings — 1  1  —  3 844  3 844  
to other related parties 1 840  2 538  4 378  308  2 953  3 261  
to other shareholdings — —  —  —  1  1  
Advance payments received for orders —  36 156  36 156  523  25 572  26 095  
  376 126  243 620  619 746  213 798  249 026  462 824  

Derivative financial instruments involve interest, currency and commodity derivatives for electricity, gas and coal. Further information about financial instruments can be found under Note 22.

Derivative financial instruments

 
  30.9.2009 30.9.2008  
Euro 000s Non-
current		 Current

 Total

 Non-
current		 Current

 Total

 
Derivative financial instruments 355 649  155 401  511 050  192 407  122 320  314 727  
of which without hedges 352 385  150 606  502 991  191 543  122 308  313 851  
of which cash flow hedges 3 264  4 795  8 059  864  12  876  

The most significant item under deferred income and accrued expenses is an advance fee amounting to Euro 11 540 thousand received for the incineration of waste in conjunction with the takeover of an energy from waste plant by Energieversorgung Offenbach AG (previous year: Euro 14 256 thousand).

To reduce the counterparty risk involved in highly fluctuating fair values of energy trading derivatives, security deposits (margins) are exchanged with the EEX. Moreover, the Group has also entered into bilateral risk reduction agreements in some cases. There were no longer any liabilities for security deposits as of the balance sheet date (previous year: Euro 44 386 thousand).