CALiPER Report 21.3. Cost Effectiveness of Linear (T8) LED Lamps

关键词: caliper;    ssl;    eere;    doe;    led;    T8;    lighting;    lamp;    report;    cost;    life cycle;    price;   

DOI  :  10.2172/1221105
RP-ID  :  PNNL-SA--23378
PID  :  OSTI ID: 1221105
Others  :  Other: 6822

美国|英语

来源: SciTech Connect

【 摘 要 】

Meeting performance expectations is important for driving adoption of linear LED lamps, but cost-effectiveness may be an overriding factor in many cases. Linear LED lamps cost more initially than fluorescent lamps, but energy and maintenance savings may mean that the life-cycle cost is lower. This report details a series of life-cycle cost simulations that compared a two-lamp troffer using LED lamps (38 W total power draw) or fluorescent lamps (51 W total power draw) over a 10-year study period. Variables included LED system cost ($40, $80, or $120), annual operating hours (2,000 hours or 4,000 hours), LED installation time (15 minutes or 30 minutes), and melded electricity rate ($0.06/kWh, $0.12/kWh, $0.18/kWh, or $0.24/kWh). A full factorial of simulations allows users to interpolate between these values to aid in making rough estimates of economic feasibility for their own projects. In general, while their initial cost premium remains high, linear LED lamps are more likely to be cost-effective when electric utility rates are higher than average and hours of operation are long, and if their installation time is shorter.