ATLANTIC POWER CORP

(5) The base PPA with Atlantic City Electric (“ACE”) makes up the majority of the revenue from the 89 Net MW.

Project revenue Three Months Ended March 31, 2021 2020United States $ 46.1 $ 48.2Canada 25.9 24.6Total $ 72.0 $ 72.8 Property, Plant and PPAs and Equipment, net of other intangible assets, net of accumulated depreciation accumulated amortization Total assets March 31, 2021 December 31, 2020 March 31, 2021 December 31, 2020 March 31, 2021 December 31, 2020United States $ 345.0 $ 351.2 $ 114.0 $ 119.4 $ 644.0 $ 666.4Canada 136.3 140.6 0.8 0.9 179.9 180.8Total $ 481.3 $ 491.8 $ 114.8 $ 120.3 $ 823.9 $ 847.2 Concentration risk Independent Electricity System Operator (“IESO”), BC Hydro, Niagara Mohawk and Equistar Chemicals, LP (“Equistar”) provided 14.8%, 14.8%, 13.4%, and 12.1%, respectively, of total consolidated revenues for the three months ended March 31, 2021.

Project revenue Three Months Ended Nine Months Ended September 30, September 30, 2020 2019 2020 2019United States $ 46.5 $ 54.9 $ 140.1 $ 159.5Canada 18.7 16.2 60.2 55.9Total $ 65.2 $ 71.1 $ 200.3 $ 215.4 Property, Plant and PPAs and Equipment, net of other intangible assets, net of accumulated depreciation accumulated amortization Total assets September 30, 2020 December 31, 2019 September 30, 2020 December 31, 2019 September 30, 2020 December 31, 2019United States $ 357.7 $ 353.9 $ 124.8 $ 142.8 $ 666.5 $ 762.3Canada 137.1 148.2 1.0 1.5 173.9 173.3Total $ 494.8 $ 502.1 $ 125.8 $ 144.3 $ 840.4 $ 935.6 Concentration risk Georgia Power Company, Independent Electricity System Operator (“IESO”), BC Hydro, and Equistar Chemicals, LP, provided 15.5%, 12.2%, 11.3%, and 10.7%, respectively, of total consolidated revenues for the three months ended September 30, 2020.

Project revenue Three Months Ended Six Months Ended June 30, June 30, 2020 2019 2020 2019United States $ 45.0 $ 52.5 $ 93.5 $ 104.6Canada 17.3 18.8 41.5 39.7Total $ 62.3 $ 71.3 $ 135.0 $ 144.3 Property, Plant and PPAs and Equipment, net of other intangible assets, net of accumulated depreciation accumulated amortization Total assets June 30, 2020 December 31, 2019 June 30, 2020 December 31, 2019 June 30, 2020 December 31, 2019United States $ 357.3 $ 353.9 $ 130.2 $ 142.8 $ 676.9 $ 762.3Canada 136.3 148.2 1.1 1.5 172.0 173.3Total $ 493.6 $ 502.1 $ 131.3 $ 144.3 $ 848.9 $ 935.6 Concentration risk Niagara Mohawk, Independent Electricity System Operator (“IESO”), Georgia Power Company, and Equistar Chemicals, LP, provided 18.4%, 13.2%, 11.4%, and 11.3%, respectively, of total consolidated revenues for the three months ended June 30, 2020.

Georgia Power Company, IESO, Southern California Edison and Equistar Chemicals, LP provided 16.2%, 11.2%, 10.5% and 10.4%, respectively, of total consolidated revenues for the three months ended September 30, 2019.

Niagara Mohawk, IESO, Equistar Chemicals, LP, Georgia Power Company and BC Hydro provided 23.7%, 11.3%, 11.0% , 11.1% and 10.8%, respectively, of total consolidated revenues for the three months ended June 30, 2019.

Georgia Power Company, IESO, Southern California Edison and Equistar Chemicals, LP provided 16.2%, 11.2%, 10.5% and 10.4%, respectively, of total consolidated revenues for the three months ended September 30, 2019.

P. and Georgia Power Company, which account for approximately 14.8%, 13.8%, 12.5%, 10.9% and 10.4%, respectively, of the consolidated revenue of our projects.

Project revenue Three Months Ended Nine Months Ended September 30, September 30, 2020 2019 2020 2019United States $ 46.5 $ 54.9 $ 140.1 $ 159.5Canada 18.7 16.2 60.2 55.9Total $ 65.2 $ 71.1 $ 200.3 $ 215.4 Property, Plant and PPAs and Equipment, net of other intangible assets, net of accumulated depreciation accumulated amortization Total assets September 30, 2020 December 31, 2019 September 30, 2020 December 31, 2019 September 30, 2020 December 31, 2019United States $ 357.7 $ 353.9 $ 124.8 $ 142.8 $ 666.5 $ 762.3Canada 137.1 148.2 1.0 1.5 173.9 173.3Total $ 494.8 $ 502.1 $ 125.8 $ 144.3 $ 840.4 $ 935.6 Concentration risk Georgia Power Company, Independent Electricity System Operator (“IESO”), BC Hydro, and Equistar Chemicals, LP, provided 15.5%, 12.2%, 11.3%, and 10.7%, respectively, of total consolidated revenues for the three months ended September 30, 2020.

Project revenue Three Months Ended Six Months Ended June 30, June 30, 2020 2019 2020 2019United States $ 45.0 $ 52.5 $ 93.5 $ 104.6Canada 17.3 18.8 41.5 39.7Total $ 62.3 $ 71.3 $ 135.0 $ 144.3 Property, Plant and PPAs and Equipment, net of other intangible assets, net of accumulated depreciation accumulated amortization Total assets June 30, 2020 December 31, 2019 June 30, 2020 December 31, 2019 June 30, 2020 December 31, 2019United States $ 357.3 $ 353.9 $ 130.2 $ 142.8 $ 676.9 $ 762.3Canada 136.3 148.2 1.1 1.5 172.0 173.3Total $ 493.6 $ 502.1 $ 131.3 $ 144.3 $ 848.9 $ 935.6 Concentration risk Niagara Mohawk, Independent Electricity System Operator (“IESO”), Georgia Power Company, and Equistar Chemicals, LP, provided 18.4%, 13.2%, 11.4%, and 11.3%, respectively, of total consolidated revenues for the three months ended June 30, 2020.

Niagara Mohawk Power Corporation, IESO, Equistar Chemicals L.P. and Georgia Power Company provided 19.6%, 12.9%, 12.0% and 11.1%, respectively, of total consolidated revenues for the year ended December 31, 2019.

Georgia Power Company, IESO, Southern California Edison and Equistar Chemicals, LP provided 16.2%, 11.2%, 10.5% and 10.4%, respectively, of total consolidated revenues for the three months ended September 30, 2019.

Niagara Mohawk, IESO, Equistar Chemicals, LP, Georgia Power Company and BC Hydro provided 23.7%, 11.3%, 11.0% , 11.1% and 10.8%, respectively, of total consolidated revenues for the three months ended June 30, 2019.