Use of Non-GAAP Financial Information

Echelon believes that the presentation of results excluding certain charges, including non-cash stock-based compensation, provides meaningful supplemental information to both management and investors that is indicative of the Company’s core operating results and facilitates comparison of operating results across reporting periods. The Company uses these non-GAAP measures when evaluating its financial results as well as for internal planning and forecasting purposes. These non-GAAP measures are not in accordance with, or an alternative for, generally accepted accounting principles and may be different from non-GAAP measures used by other companies. The presentation of this additional information is not meant to be considered in isolation or as a substitute for net income or net income per share prepared in accordance with generally accepted accounting principles.