As used in this Article, unless the context otherwise requires, the following definitions shall apply:
(1) A prime contractor shall mean the person, persons, entity or entities who has a contract with the owner and is the one responsible for the overall construction of any building or the installation of any component which affect the energy efficiency of the building. Prime contractor shall also mean a property owner who performs the work of a prime contractor.
(2) Architect or engineer shall mean any person registered pursuant to section 81-847, Reissue Revised Statutes of Nebraska, 1943.
(3) Building shall mean any structure which utilizes or will utilize a heating system, cooling system, or domestic hot water system, including new buildings, renovated buildings, and additions, but not including any structure which has a consumption of traditional energy sources for all purposes not exceeding the energy equivalent of one watt per square foot.
(4) Residential building shall mean a building three stories or less that is used primarily as one or more dwelling units.
(5) Renovation shall mean alterations on an existing building which will cost more than fifty percent of the replacement costs of such building at the time work is commenced or which was not previously heated or cooled, for which a heating or cooling system is now proposed, except that the restoration of historical buildings shall not be included.
(6) Addition shall mean any construction added to an existing building which will increase the floor area of that building by five percent (5%) or more.
(7) Floor area shall mean the total area of a building, expressed in square feet, which is within the exterior face of the shell of the structure which is heated or cooled.
(8) Standard shall mean Standard 90-75 of the American Society of Heating, Refrigeration, and Air-Conditioning Engineers, Inc., as it existed on April 23, 1980.
(9) Traditional energy sources shall mean electricity, petroleum based fuels, uranium, coal, and all nonrenewable forms of energy.