Program Experience and Its Regulatory Implications: A Case Study of Utility Lighting Efficiency Programs
In this report, we review the experience of utilities with a variety of lighting efficiency program designs, as illustrated by a dozen recent utility programs for residential, commercial, and industrial customers. This experience is then examined in terms of regulatory implications in the context of least-cost utility planning. The key questions explored in our report are as follows:
- How effectively are current utility programs mobilizing the technical potential of lighting efficiency resources?
- How does the program-based cost of lighting efficiency differ from the technology-based costs used in technical potential studies?
- What program designs appear to be most effective in reaching participants?
- What are the trade-offs between maximizing participation rates and per-customer savings and minimizing program costs?
In addition to these program evaluation questions, we also explore regulatory implications of lighting program experience:
- Could lighting program offer resources substantial enough to defer the construction of power plants?
- What measures could be taken by regulatory commissions to ensure and facilitate further utility program improvements?