Dec 8 (Reuters) - Atlantic Power Corp AT.N :
* ATLANTIC POWER CORPORATION PROVIDES UPDATE ON CALSTOCK POWER PURCHASE AGREEMENT AND CADILLAC INSURANCE SETTLEMENT
* ATLANTIC POWER - ONE-YEAR EXTENSION OF ITS CALSTOCK POWER PURCHASE AGREEMENT AND FINAL SETTLEMENT OF INSURANCE CLAIM FOR ITS CADILLAC PLANT
* ATLANTIC POWER - PPA EXTENSION DOES NOT RESULT IN A CHANGE TO COMPANY'S 2020 PROJECT ADJUSTED EBITDA GUIDANCE OF $175 MILLION TO $190 MILLION