Comparison of energy efficiency and costs related to conventional and LED road lighting installations

被引：17

作者：

Davidovic, M. ^{[1
]}

Kostic, M. ^{[1
]}

机构：

[1] Univ Belgrade, Fac Elect Engn, Bulevar Kralja Aleksandra73, Belgrade 11000, Serbia

来源：

ENERGY | 2022年 / 254卷

关键词：

General methodology; LED; HPS and MH luminaires; Street; road lighting; Energy efficiency; Cost sensitivity analysis; Color of light; HIGH-PRESSURE SODIUM; EMITTING-DIODES; STREET; LUMINAIRES;

D O I：

10.1016/j.energy.2022.124299

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Comparison of conventional (usually high-pressure sodium (HPS)) and LED luminaires in street/road lighting is not often based on photometrically equivalent lighting solutions and/or correct economic analysis, which may lead to either overestimation or underestimation of savings of any kind. Therefore, this paper presents a correct methodology for the determination of actual energy efficiency and cost indicators in street/road lighting. Both neutral white (NW) and warm white (WW) LEDs, all relevant street/road lighting classes and pole layouts were considered. Analyzing optimal lighting solutions, characterized by the lowest installed power, it was shown that when considering mesopic effects the average energy savings achieved comparing LED (NW and WW) with HPS lighting solutions amounted to 41-62% and 29-59%, respectively, while the ratio between the total costs of the comparable LED (NW and WW) and HPS lighting solutions belonged to the ranges 0.59-1.26 and 0.61-1.14, respectively. An expanded sensitivity analysis of the costs, carried out considering not only the usually taken discount and electricity cost rates, but also the LED package lifetime, showed that the last only slightly influences the total costs. The effects of the use of more efficient LED packages expected in the near future were also analyzed.(c) 2022 Elsevier Ltd. All rights reserved.

引用

页数：22

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