Washington Revised Code Title 80. Public Utilities § 80.04.550. Thermal energy--Restrictions on authority of commission

(a) “Thermal energy company” means any private person, company, association, partnership, joint venture, or corporation engaged in or proposing to engage in developing, producing, transmitting, distributing, delivering, furnishing, or selling to or for the public thermal energy services for any beneficial use other than electricity generation;

(b) “Thermal energy system” means any system that provides thermal energy for space heating, space cooling, or process uses from a central plant or combined heat and power facility, and that distributes the thermal energy to two or more buildings through a network of pipes;

(c) “Thermal energy” means heat or cold in the form of steam, heated or chilled water, or any other heated or chilled fluid or gaseous medium; and

(d) “Thermal energy services” means the provision of thermal energy from a thermal energy system and includes such ancillary services as energy audits, metering, billing, maintenance, and repairs related to thermal energy.