NV Rev Stat § 333A.040 (2021)
2021 Nevada Revised Statutes|Chapter 333A - Purchasing: State Performance Contracts for Operating Cost-Savings Measures|NRS 333A.040 - Operating cost-savings measure" defined.

Operating cost-savings measure means any improvement, repair or alteration to a building, or any equipment, fixture or furnishing to be added or used in a building that is designed to reduce operating costs, including those costs related to electrical energy and demand, thermal energy, water consumption, waste disposal and contract-labor costs, and increase the operating efficiency of the building for the appointed functions that are cost-effective. The term includes, without limitation:  1. Procurement of low-cost energy supplies, including electricity and natural gas.  2. Procurement of cost savings as a result of outsourcing energy needs for electrical power, heating and cooling.  3. Operational or maintenance labor savings resulting from reduced costs for maintenance contracts as provided through reduction of required maintenance or operating tasks, including, without limitation, replacement of filters and lighting products, and equipment failures.  4. Investment in equipment, products and materials, and strategies for building operation, or any combination thereof, designed to reduce energy and other utility expenses, including, without limitation:  (a) Costs for materials and labor required to replace old equipment with new, more efficient equipment.  (b) Storm windows or doors, caulking or weather stripping, multiglazed windows or doors, heat-absorbing or heat-reflective glazed or coated windows or doors, reductions in glass area, and other modifications to windows and doors that will reduce energy consumption.  (c) Automated or computerized energy control systems.  (d) Replacement of, or modifications to, heating, ventilation or air-conditioning systems.  (e) Replacement of, or modifications to, lighting fixtures.  (f) Improvements to the indoor air quality of a building that conform to all requirements of an applicable building code.  (g) Energy recovery systems.  (h) Systems for combined cooling, heating and power that produce steam or other forms of energy, for use primarily within the building or a complex of buildings.  (i) Installation of, or modifications to, existing systems for daylighting, including lighting control systems.  (j) Installation of, or modification to, technologies that use renewable or alternative energy sources.  (k) Programs relating to building operation that reduce operating costs, including, without limitation, computerized programs, training and other similar activities.  (l) Programs for improvement of steam traps to reduce operating costs.  (m) Devices that reduce water consumption in buildings, for lawns and for other irrigation applications.  (n) Any additional improvements to building infrastructures that produce energy and operating cost savings, significantly reduce energy consumption or increase the operating efficiency of the buildings for their appointed functions, provided that such improvements comply with applicable building codes.  (o) Trash compaction and waste minimization.  5. Investment in educational programs relating to occupational behavior that are designed to reduce the consumption of energy or water, or both, and the generation of waste.  (Added to NRS by 2003, 3054)