Whenever any corporation has acquired any property by decree of appropriation based on proceedings in court under the provisions of RCW 80.32.080 through 80.32.100, no portion of the electricity generated or transmitted by it by means of the property appropriated under the provisions of RCW 80.32.080 through 80.32.100 shall be used or applied by such corporation for or to a business or trade not under the present laws deemed public or quasi public conducted by itself.