(1) Represents estimated future revenues from projects that have been awarded, though the contracts have not yet been signed.
(2) Estimated total construction value of all energy assets in construction and development.
Exhibit A: Non-GAAP Financial Measures
We use the non-GAAP financial measures defined and discussed below to provide investors and others with useful supplemental information to our financial results prepared in accordance with GAAP. These non-GAAP financial measures should not be considered as an alternative to any measure of financial performance calculated and presented in accordance with GAAP. For a reconciliation of these non-GAAP measures to the most directly comparable financial measures prepared in accordance with GAAP, please see Other Non-GAAP Disclosure and Non-GAAP Financial Guidance in the tables above.
We understand that, although measures similar to these non-GAAP financial measures are frequently used by investors and securities analysts in their evaluation of companies, they have limitations as analytical tools, and investors should not consider them in isolation or as a substitute for the most directly comparable GAAP financial measures or an analysis of our results of operations as reported under GAAP. To properly and prudently evaluate our business, we encourage investors to review our GAAP financial statements included above, and not to rely on any single financial measure to evaluate our business.
Adjusted EBITDA and Adjusted EBITDA Margin
We define adjusted EBITDA as operating income before depreciation, amortization of intangible assets, stock-based compensation expense, restructuring charges, and charges related to a significant customer bankruptcy. We believe adjusted EBITDA is useful to investors in evaluating our operating performance for the following reasons: adjusted EBITDA and similar non-GAAP measures are widely used by investors to measure a company’s operating performance without regard to items that can vary substantially from company to company depending upon financing and accounting methods, book values of assets, capital structures and the methods by which assets were acquired; securities analysts often use adjusted EBITDA and similar non-GAAP measures as supplemental measures to evaluate the overall operating performance of companies; and by comparing our adjusted EBITDA in different historical periods, investors can evaluate our operating results without the additional variations of depreciation and amortization expense, stock-based compensation expense, and restructuring charges. We define adjusted EBITDA margin as adjusted EBITDA stated as a percentage of revenue.
Our management uses adjusted EBITDA and adjusted EBITDA margin as measures of operating performance, because they do not include the impact of items that we do not consider indicative of our core operating performance; for planning purposes, including the preparation of our annual operating budget; to allocate resources to enhance the financial performance of the business; to evaluate the effectiveness of our business strategies; and in communications with the board of directors and investors concerning our financial performance.
Non-GAAP Net Income and EPS
We define non-GAAP net income and earnings per share (“EPS”) to exclude certain discrete items that management does not consider representative of our ongoing operations, including restructuring charges, impact from redeemable non-controlling interest and charges related to a significant customer bankruptcy. We consider non-GAAP net income and non-GAAP EPS to be important indicators of our operational strength and performance of our business because they eliminate the effects of events that are not part of the Company’s core operations.
Adjusted Cash From Operations
We define adjusted cash from operations as cash flows from operating activities plus proceeds from Federal ESPC projects. Cash received in payment of Federal ESPC projects is treated as a financing cash flow under GAAP due to the unusual financing structure for these projects. These cash flows, however, correspond to the revenue generated by these projects. Thus we believe that adjusting operating cash flow to include the cash generated by our Federal ESPC projects provides investors with a useful measure for evaluating the cash generating ability of our core operating business. Our management uses adjusted cash from operations as a measure of liquidity because it captures all sources of cash associated with our revenue generated by operations.