Investor Presentaiton

Reporting of Non-IFRS Financial Measures 44 This investor presentation includes references to Northland's adjusted EBITDA and free cash flow, measures not prescribed by International Financial Reporting Standards (IFRS). Adjusted EBITDA and free cash flow, as presented, may not be comparable to other similarly-titled measures presented by other publicly-traded companies, as these measures do not have a standardized meaning under IFRS. These measures should not be considered in isolation or as alternatives to net income, cash flow from operating activities or other measures of financial performance calculated in accordance with IFRS. These measures are also not necessarily indicative of operating income or cash flows from operating activities as determined under IFRS. Rather, these measures are provided to complement IFRS measures in the analysis of Northland's results of operations and are used by management to evaluate the performance of the company for internal assessment purposes. Management believes that adjusted EBITDA and free cash flow are widely- accepted financial indicators used by investors to assess the performance of a company. These measures provide investors with additional information to assist them in understanding these critical components of the company's financial performance, including its ability to generate cash through its current operations. These measures have been applied consistently for all periods presented in this document. Adjusted EBITDA Adjusted EBITDA provides investors with an indication of Northland's capacity to generate income from operations and investments before taking into account management's financing decisions and the costs of consuming tangible and intangible capital assets, which vary according to asset type and management's estimate of their useful lives. Adjusted EBITDA is calculated as income (loss) before income taxes adjusted for depreciation of property, plant and equipment, amortization of contracts and other intangible assets, net finance costs, Gemini subordinated debt earned by Northland, fair value losses (gains) on derivative contracts, unrealized foreign exchange losses (gains), elimination of non-controlling interests and finance lease and equity accounting. Free cash flow Free cash flow is calculated as cash flow provided by operating activities adjusted for net change in non-cash working capital balances, capital expenditures, interest paid, scheduled principal repayments on term loans, funds set aside for scheduled principal repayments and for asset purchases, restricted cash (funding) for major maintenance, write-off of deferred development costs, consolidation of managed facilities, income from equity accounted investments, proceeds from sale of assets, and preferred share dividends. This measure, along with cash flow provided by operating activities, is considered to be a key indicator for investors to understand Northland's ability to generate cash flow from its current operations. Adjusted Free Cash Flow Commencing with the 2020 Annual Report, Northland introduced Adjusted Free Cash Flow, a supplementary non-IFRS Free Cash Flow measure, and associated per share amounts and payout ratios. Adjusted Free Cash Flow is calculated by excluding growth-related expenditures from Free Cash Flow. Management believes this measure provides a relevant presentation of cash flow generated from the business before investment-related decisions (refer to Section 4.3: Growth Expenditures for additional information). Management believes Adjusted Free Cash Flow is a meaningful measure of Northland's ability to generate cash flow, after on-going obligations, to reinvest in growth and fund dividend payments. The Free Cash Flow and adjusted payout ratios, calculated using Free Cash Flow and Adjusted Free Cash Flow, respectively, demonstrate the proportion of the respective measure paid as dividends, whether in cash, or in shares under Northland's dividend reinvestment plan (DRIP). The net payout ratios indicate the proportion of Free Cash Flow paid as cash dividends. The payout ratios generally reflect Northland's ability to fund growth-related expenditures and sustain dividends. Readers should refer to our MD&As accompanying our financial statements for an explanation of adjusted EBITDA and free cash flow, and for a reconciliation of Northland's reported adjusted EBITDA to its consolidated income (loss) before taxes and a reconciliation of Northland's free cash flow to its cash provided by operating activities. These are filed from time to time on our company's website www.northlandpower.com NORTHLAND POWER

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