conservation or more efficient use of water, energy, or stormwater or sewer services in such structures or equipment. Except as provided in section 7 of this Article, an appropriate charge back shall be made for such extension of public moneys or credit and the same shall be a lien against the structure benefited or a security interest in the equipment benefited. Any financing for energy conservation authorized by this article shall only be used for conservation purposes in existing structures and shall not be used for any purpose which results in a conversion from one energy source to another. (Emphasis added.) ¶15 In City of Tacoma v. Taxpayers of the City of Tacoma, our Supreme Court upheld the constitutionality of conservation loan programs. 108 Wn.2d 679, 705, 743 P.2d 793 (1987) (<HOLDING>). 116 Further, article VIII, section 10
holding loan programs constitutional because the city received sufficient bargained for consideration in the form of public benefit from electric conservation recognizing the importance of public welfare and conservation of water in administering its public waters holding that a plantshutdown benefit is not an optional form of benefit holding that consideration for guaranty of loan previously made was that guarantors friend the bank manager who issued the loan would not lose his job for making a bad loan holding that city electors who rendered property to city assessor after time fixed by statute were qualified to vote at city election on issuance of bonds for construction of an electric light and power system