(a) (1) In exercising the jurisdiction and power conferred upon the Commission by § 201 of this title, the Commission, upon its own motion at any time it deems such action to be in the public interest or upon complaint duly filed with it, may take into consideration, among other things, the efficiency, sufficiency and adequacy of the facilities and products provided and services rendered by the public utility, the value of such services, products and facilities to the public, and the ability of the public utility to improve such services, products and facilities. During such proceeding, the Commission may consider any service complaints by subscribers and the public.

(2) If the Commission finds that the public utility’s facilities, products or services are inefficient, insufficient or inadequate, it may impose such penalty upon the public utility as may be necessary to restore such facilities, products or services to a state of efficiency, sufficiency or adequacy. Upon significant improvement in such services, products or facilities, the Commission may, after hearing, remove or reduce the penalty imposed.

(b) The power and authority herein conferred upon the Commission shall not be construed in any way to limit the general jurisdiction and power conferred upon the Commission by § 201 of this title, it being the legislative intent that efficient, sufficient and adequate services, products and facilities shall be provided by public utilities.

59 Del. Laws, c. 397, § 1.