California Lamp Report 2001

摘要

Historically, estimates made of the penetration of compact fluorescent lamps (CFLs) in the marketplace have relied on national shipment data, census data, self-reports, limited on-site data, and the willingness of distributors and manufacturers to supply critical data. These data lack the timeliness and level of detail needed to provide program planners and evaluators with the information needed to gauge the effectiveness of their lighting initiatives. To improve this situation, a system was developed that collects line item detail on monthly unit sales data and reports results nationally and by California utility territory every six months. The data have been collected for three years now from five major sales channels through which lamps are sold: food, drug, mass merchandiser, home improvement, and hardware stores. The result is a timelier, detailed summary on California and national CFL sales. Recent findings from this process include identification of a surge in California's market share of CFL sales in 2001, identification of key retail channels through which CFLs are sold and how they change over tune, and contrasts between California and national market share trends. This work originated from the California Residential Efficiency Market Share Tracking study for the California investor-owned utilities (IOUs) to evaluate the success of their energy efficiency lighting programs. The intent was to collect point-of-sale data to support the IOUs' needs to measure program milestones for promoting CFLs in their respective service territories.