Exhibit 11.01 Environmental Power Corporation Computation of Earnings Per Share December 31, 2002 Income Shares Per Share (Numerator) (Denominator) Amounts -------------------------------------------------- Year Ended December 31, 2002: - ----------------------------- Income available to shareholders $1,138,383 20,720,614 $0.05 Effect of dividends to preferred stockholders -5,000 -------------------------------------------------- Basic EPS - income available to common shareholders 1,133,383 20,720,614 0.05 Effect of dilutive securities: Assumed exercise of dilutive stock options 90,209 -------------------------------------------------- Diluted EPS - income available to common shareholders $1,133,383 20,810,823 $0.05 ================================================== Year Ended December 31, 2001: - ----------------------------- Income available to shareholders $1,679,331 14,144,222 $0.12 Effect of dividends to preferred stockholders -5,000 -------------------------------------------------- Basic EPS - income available to common shareholders 1,674,331 14,144,222 0.12 Effect of dilutive securities: Assumed conversion of preferred stock 585,155 Assumed exercise of dilutive stock options 16,318 -------------------------------------------------- Diluted EPS - income available to common shareholders $1,674,331 14,745,695 $0.11 ================================================== Year Ended December 31, 2000: - ----------------------------- Income available to shareholders $1,826,808 11,406,783 $0.16 Effect of dividends to preferred stockholders -5,000 -------------------------------------------------- Basic EPS - income available to common shareholders 1,821,808 11,406,783 0.16 Effect of dilutive securities: Assumed exercise of dilutive stock options 2,026 -------------------------------------------------- Diluted EPS - income available to common shareholders $1,821,808 11,408,809 $0.16 ==================================================