Altus Power Results Presentation Deck

Non-GAAP Reconciliation tox Adjusted EBITDA¹ Reconciliation of Net income to Adjusted EBITDA Net income Income tax benefit Interest expense, net Depreciation, amortization and accretion expense Non-cash compensation expense Acquisition and entity formation costs Loss (gain) on fair value remeasurement of contingent consideration Change in fair value of redeemable warrant liability Change in fair value of alignment shares liability Other expense (income), net Adjusted EBITDA Adjusted EBITDA Margin¹ Reconciliation of Adjusted EBITDA Margin: Adjusted EBITDA Operating revenues, net Adjusted EBITDA Margin 1 Adjusted EBITDA and Adjusted EBITDA Margin are non-GAAP financial measures $ Three Months Ended March 31, 2022 (in thousands) 60,135 $ -123 4,938 6,822 1,305 294 169 -18,458 -46,346 2021 15 8,751 2022 Three Months Ended March 31, 2021 (in thousands) 8,751 19,199 46% 263 -1,037 3,913 4,388 37 147 -1,275 -111 6,325 6,325 12,471 51% 11

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