HomeMy WebLinkAboutF-5. LED Lamps Economic EvaluationEconomic Evaluation -HPS lamp substitution to LED
September 25, 2017
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The selected LED light's specifications (sold by TGS) with globe are as follows:
LUMENS OUTPUT LIFE (HRS.) WATTAGE UNIT PRICE
5,580 85,000 036 watt $ 147.00
The results of economic evaluation are summarized below.
LED Lamps/Globe Cost (176 lights) $25,900
Installation Labor $26,400
Total Capital Cost $52,300
Energy Savings (20 Year PV) $48,000
Lamp Replacement Savings (20 Year PV) $14,000
Total Savin_gs $62,000
Based on the above, the Cost/Benefit ratio of replacing 176 existing HPS street lighting on Azusa
Avenue between 5th and 9th streets is 0.84 or 84%. This means the street light change-out has a
positive net value. Simple payback is about 16 years.
In view of the above results, the substitution of HPS with LED lamps along downtown Azusa
A venue will be beneficial. Lastly, the old HPS lamps and globe fixtures can be re-purposed as
needed at other appropriate locations in lieu of salvage value.
FISCAL IMPACT:
The cost of exchanging HPS to LED lamps including new globe/fixture along downtown Azusa
A venue, as shown in the initial economic evaluation, is estimated at $52,272. This is comprised
of $25,900 in materials and $26,400 for in-house labor.
Prepared by:
Hien K. Vuong PE
Senior Electric Engineer
Federico Langit Jr.
Assistant Director -Electric Operations
Reviewed and Approved:
Don Penman
Interim City Manager
Reviewed and Approved:
George F. Morrow
Director of Utilities
UB-275