Feb 4 (Reuters) - AGL Energy Ltd AGL.AX :
* INTENDS TO RECOGNISE CHARGES OF $2,686 MILLION (POST-TAX) IN ITS FINANCIAL STATEMENTS FOR PERIOD ENDED 31 DEC
* AGL ENERGY LTD SEES FY21 UNDERLYING PROFIT AFTER TAX UNCHANGED FROM RANGE OF $500 MILLION TO $580 MILLION
* ANTICIPATES POSITIVE IMPACT TO UNDERLYING PROFIT AFTER TAX IN FY22 AND FY23 OF ABOUT $50 MILLION TO $80 MILLION