As used in this chapter unless the context clearly requires otherwise:
(1) "Demand-side activity" or "demand-side management program" means a program conducted or proposed by a producer, supplier, or distributor of energy for the reduction or more efficient use of energy requirements of the producer's, supplier's, or distributor's customers, through measures including, but not limited to, conservation and energy efficiency, load management, cogeneration, and renewable energy technologies.
(2) "Integrated resource plan" means a plan which contains the demand and energy forecast for at least a fifteen-year period, contains the supplier's or producer's program for meeting the requirements shown in its forecast in an economic and reliable manner, including both demand-side and supply-side options, with a brief description and summary cost-benefit analysis, if available, of each option which was considered, including those not selected, sets forth the supplier's or producer's assumptions and conclusions with respect to the effect of the plan on the cost and reliability of energy service, and describes the external environmental and economic consequences of the plan to the extent practicable. For electrical utilities subject to the jurisdiction of the South Carolina Public Service Commission, this definition must be interpreted in a manner consistent with the integrated resource planning requirements pursuant to Section 58-37-40 and any process adopted by the commission. For electric cooperatives subject to the regulations of the Rural Utilities Service, this definition must be interpreted in a manner consistent with any integrated resource planning process prescribed by Rural Utilities Service regulations.
(3) "Cost-effective" means that the net present value of benefits of a program or portfolio exceeds the net present value of the costs of the program or portfolio. A program or portfolio is cost-effective if it passes any two of the following tests:
(a) utility cost test;
(b) total resource cost test;
(c) participant cost test; or
(d) ratepayer impact measure test.
In evaluating the cost-effectiveness of a program or portfolio, a utility or program administrator must present the results of all four tests. The total resource cost test must include as part of customer benefits a reasonable estimate of all significant customer cost savings. In calculating cost-effectiveness, a utility must use a standard utility practice for determining the percentage of energy savings that would or would not have been achieved through customer adoption of an efficiency behavior or technology without any incentive allowed pursuant to this chapter to install and utilize the technology as part of the associated demand-side management program. The utility must designate the expected useful life of the measure and evaluate the costs and benefits of the measures over their useful lives in the program application based on industry accepted standards. Further, in calculating the cost-effectiveness, the commission must consider the efficiencies and scale of programs that are or may be available across a utility's balancing area, even if that balancing area extends outside of the State.
(4) "Demand-side management pilot program" means a demand-side management program that is of limited scope, cost, and duration and that is intended to determine whether a new or substantially revised program or technology would be cost-effective.