scholarly journals Economic Analysis of Replacing HPS Lamp with LED Lamp and Cost Estimation to Set Up PV/Battery System for Street Lighting in Oman

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7697
Author(s):  
Rona George Allwyn ◽  
Rashid Al Abri ◽  
Arif Malik ◽  
Amer Al-Hinai
Keyword(s):  
Economic Analysis ◽  
Co2 Emissions ◽  
Cost Estimation ◽  
Life Cycle Cost ◽  
Light Emitting Diode ◽  
Battery System ◽  
Street Lighting ◽  
Sultan Qaboos University ◽  
Cost Of Energy ◽  
Set Up

In this paper, two aspects related to streetlight systems are considered. In the first part, the economic analysis of replacing existing HPS lamps with light-emitting diode (LED) and discrete LED lamps for street lighting is performed using actual data from Oman. The street lighting system inside Sultan Qaboos University is considered for the case study. The discounted payback period, which is calculated to study the practicability of implementing the system, is found to be 1.01 years, making the system financially appealing. Moreover, the estimated reduction of a carbon footprint shows that tonnes of CO2 emissions are reduced, which makes it environmentally attractive. The second part of the paper considers optimal sizing of PV/battery system for a new streetlight system with LED lamps. The life cycle cost analysis was performed and the related cost of energy generated per kWh is estimated as 0.097 $/kWh which proves the economic viability of the system to be implemented in Oman besides minimizing the CO2 emissions to zero.

Research of Cost Estimation of Energy-Saving Buildings Based on the Full Lifecycle Theory

2013 ◽  
Vol 357-360 ◽  
pp. 2454-2459
Author(s):  
Hui Ling Li ◽  
Hang Tian Liu ◽  
Xiao Qin Li
Keyword(s):  
Life Cycle ◽  
Energy Saving ◽  
Cost Estimation ◽  
Life Cycle Cost ◽  
Capital Investment ◽  
Analytical Tool ◽  
Social Benefits ◽  
Full Life Cycle ◽  
Cost Of Energy ◽  
Full Life

This paper first selects the theory of full lifecycle cost as the entry point and analyses the composition of full lifecycle cost of energy-saving buildings. Then it clarifies that the full lifecycle cost estimation of energy-saving buildings is an analytical tool in capital investment and a way to minimize the full lifecycle cost of energy-saving buildings. We also construct the concept and steps of cost estimation and build two mathematical models of full lifecycle cost estimation under two different application conditions; Finally, this paper illustrates the economic and social benefits brought by full life cycle cost estimation of energy-saving buildings through the case studies.

scholarly journals Methodology to Size an Optimal Stand-Alone PV/wind/diesel/battery System Minimizing the Levelized cost of Energy and the CO2 Emissions

2012 ◽  
Vol 14 ◽  
pp. 1636-1647 ◽  
Author(s):  
B. Ould. Bilal ◽  
V. Sambou ◽  
C.M.F Kébé ◽  
P.A. Ndiaye ◽  
M. Ndongo
Keyword(s):  
Co2 Emissions ◽  
Battery System ◽  
Levelized Cost ◽  
Cost Of Energy

scholarly journals Techno Economic Analysis of Hybrid Sea Floating Photovoltaic and Wind Turbine for Fish Cold Storage At Remote Island In Indonesia (Case Study: Small Kei Island, Maluku, Indonesia)

2018 ◽  
Vol 218 ◽  
pp. 01001
Author(s):  
Fidel Rezki Fajry ◽  
Iwa Garniwa ◽  
Achmad Fajar Tofani
Keyword(s):  
Economic Analysis ◽  
Wind Turbine ◽  
Cold Storage ◽  
Life Cycle Cost ◽  
Net Present Value ◽  
New Technology ◽  
Levelized Cost ◽  
Wind Turbine System ◽  
Cost Of Energy ◽  
Grid Scheme

Most of fisherman in Small Kei Island, Indonesia, are difficult to keep the good quality of fish for several days because unavailability of Fish Cold Storage. Due to the area is also far from grid, this paper is aimed to analyse the most optimized sizing of integrating the new technology of sea floating photovoltaic and wind turbine to achieve the minimal levelized cost of energy for powering 100 tons of fish cold storage. Ten scenarios with implemented off-grid scheme by dividing battery bank into two equal parts that will be operated interchangeably to meet 24 hours load requirement on hybrid sea floating photovoltaic and wind turbine system are performed. As result, 100 kW of wind turbine and 803kWp of sea floating photovoltaic are chosen with the most minimal levelized cost of energy of USD 0.52/kWH by life cycle cost method of 20 years. With define electricity tariff of USD 0.81/kWH and interest loan of 9%, the economic analysis result fulfil of four indicators requirement with payback period of 6 years 6 months 20 days, net present value of USD 10,981, internal rate of return of 9.10%, and profitability index of 1.60.

scholarly journals Techno-Economic Analysis of a Hybrid Mini-grid in Rural Areas: A Case Study of Bangladesh

2020 ◽  
pp. 10-29
Author(s):  
Tausif Ali ◽  
Hongzhong Ma ◽  
Ahmed Jaudat Nahian
Keyword(s):  
Economic Analysis ◽  
Rural Areas ◽  
Swot Analysis ◽  
Energy System ◽  
Battery System ◽  
Cost Of Energy ◽  
Using Data ◽  
System Sustainability ◽  
The Impact

A techno-economic analysis of a hybrid PV-Diesel mini-grid system in rural Bangladesh is presented in this study. The case-study is done using data from Patar Char village in Patuakhali district of Bangladesh, considering non-electrified households. HOMER simulation compares three system designs: Hybrid PV-Diesel-Battery, PV-Battery, and Diesel-Battery. Hybrid PV-Diesel-Battery system yielded optimum results in terms of the lower cost of energy (COE) of around USD 0.182/kWh. Overall carbon emission of this system is around 307 kg/year, which is lower than the Diesel-Battery system, but higher than PV-Battery system. A sensitivity analysis of PV-Diesel-Battery system is performed, by considering and varying some of the indicators to prove system sustainability and feasibility. The impact of price variability in diesel price, discount rate on COE, and total net present cost (TNPC) showed that PV-Diesel-Battery system is the most feasible option. Finally, a SWOT analysis is also presented to address participatory planning strategy of developing the hybrid energy system.

scholarly journals LED Rail Signals: Full Hardware Realization of Apparatus with Independent Intensity by Temperature Changes

Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1291
Author(s):  
Giuseppe Schirripa Schirripa Spagnolo ◽  
Fabio Leccese
Keyword(s):  
Temperature Sensor ◽  
Energy Efficient ◽  
Light Emitting Diode ◽  
Junction Temperature ◽  
Light Emitting ◽  
Temperature Changes ◽  
Wide Range ◽  
International Regulations ◽  
Long Lifetime ◽  
Set Up

Nowadays, signal lights are made using light-emitting diode arrays (LEDs). These devices are extremely energy efficient and have a very long lifetime. Unfortunately, especially for yellow/amber LEDs, the intensity of the light is closely related to the junction temperature. This makes it difficult to design signal lights to be used in naval, road, railway, and aeronautical sectors, capable of fully respecting national and international regulations. Furthermore, the limitations prescribed by the standards must be respected in a wide range of temperature variations. In other words, in the signaling apparatuses, a system that varies the light intensity emitted according to the operating temperature is useful/necessary. In this paper, we propose a simple and effective solution. In order to adjust the intensity of the light emitted by the LEDs, we use an LED identical to those used to emit light as a temperature sensor. The proposed system was created and tested in the laboratory. As the same device as the ones to be controlled is used as the temperature sensor, the system is very stable and easy to set up.

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