Section 9-203 - Energy devices(a) The Mayor and City Council of Baltimore City or the governing body of a county or of a municipal corporation may grant, by law, a tax credit against the county or municipal corporation property tax imposed on a structure, if to heat or cool the structure, to generate electricity to be used in the structure, or to provide hot water for use in the structure, the structure uses: (1) a solar energy device;(2) a geothermal energy device; or(3) a qualifying energy conservation device.(b) A county or municipal corporation may provide, by law, for: (1) the amount of a property tax credit under this section;(2) the duration of a property tax credit under this section not exceeding 3 years;(3) the definition of: (i) a solar energy device;(ii) a geothermal energy device; and(iii) a qualifying energy conservation device; and(4) any other provision necessary to carry out this section.