As used in ORS § 311.850 to 311.870, unless the context requires otherwise, ‘facility’ means:

(1) A thermal power plant, as defined in ORS § 469.300.

(2) A hydroelectric power project, as described in ORS § 543.010.

(3) Any building or improvement that is suitable for use for industrial, commercial, manufacturing or warehousing purposes. [1975 c.563 § 2]