An energy efficiency-based classification approach for street lighting by considering operational factors: a case study of Barcelona

Purpose – The purpose of this paper is to suggest the usage of the project finance (PF) scheme as a suitable mechanism to fund energy efficiency projects at the urban scale and present its advantages and adoption barriers. Design/methodology/approach – A case study is developed to renew the traffic lighting system of an Italian town via replacement of the old lamps with new light-emitting diode (LED) technology. Several partners are involved in the case project to construct a viable PF arrangement. Findings – The case study presents the viability of the proposed PF scheme that provides for acceptable financial returns and bankability. However, it also shows that the need for short concession periods may call for a public contribution to the initial funding to make the project more attractive to private investors. Practical implications – This case study is a useful guideline for governments and promoters to using the PF arrangement to fund energy efficiency investments in urban settings. It helps designing an appropriate PF scheme and understanding the advantages of PF to reduce risk and, consequently, increase the debt leverage and profitability of energy efficiency projects. Originality/value – This paper contributes to bridging the gap about the lack of works addressing the implementation of the PF mechanism in the energy efficiency sector in urban areas. The importance of this paper is also associated with the shortage of traditional public finance faced by many cities that forces to seek for alternate forms of financing.

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Energy efficiency and productivity in traditional herding in semi-steppe rangeland (case study: Kalat Rangelands, North-east of Iran)

Acta Ecologica Sinica ◽

10.1016/j.chnaes.2021.02.005 ◽

2021 ◽

Author(s):

Iman Haghiyan ◽

Elnaz Nejatiyanpour

Keyword(s):

Energy Efficiency ◽

North East ◽

East Of Iran ◽

Efficiency And Productivity

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Selected aspects of energy efficiency – the case study Poland

2019 Modern Electric Power Systems (MEPS) ◽

10.1109/meps46793.2019.9394988 ◽

2019 ◽

Author(s):

Waldemar Dolega

Keyword(s):

Energy Efficiency

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Techno-economic analysis of stand-alone PV system: a case study of public street lighting for remote area in Indonesia

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/700/1/012013 ◽

2021 ◽

Vol 700 (1) ◽

pp. 012013

Author(s):

T A Ajiwiguna ◽

A Qurthobi

Keyword(s):

Economic Analysis ◽

Remote Area ◽

Pv System ◽

Street Lighting ◽

System A

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Evaluation of CO2 emissions and energy use with different container terminal layouts

Scientific Reports ◽

10.1038/s41598-021-84958-4 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Muhammad Arif Budiyanto ◽

Muhammad Hanzalah Huzaifi ◽

Simon Juanda Sirait ◽

Putu Hangga Nan Prayoga

Keyword(s):

Energy Efficiency ◽

Sustainable Development ◽

Energy Consumption ◽

Statistical Analysis ◽

Energy Use ◽

Container Terminal ◽

Container Terminals ◽

Future Planning ◽

Container Handling

AbstractSustainable development of container terminals is based on energy efficiency and reduction in CO2 emissions. This study estimated the energy consumption and CO2 emissions in container terminals according to their layouts. Energy consumption was calculated based on utility data as well as fuel and electricity consumptions for each container-handling equipment in the container terminal. CO2 emissions were estimated using movement modality based on the number of movements of and distance travelled by each container-handling equipment. A case study involving two types of container terminal layouts i.e. parallel and perpendicular layouts, was conducted. The contributions of each container-handling equipment to the energy consumption and CO2 emissions were estimated and evaluated using statistical analysis. The results of the case study indicated that on the CO2 emissions in parallel and perpendicular layouts were relatively similar (within the range of 16–19 kg/TEUs). These results indicate that both parallel and perpendicular layouts are suitable for future ports based on sustainable development. The results can also be used for future planning of operating patterns and layout selection in container terminals.

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Towards DC Energy Efficient Homes

Applied Sciences ◽

10.3390/app11136005 ◽

2021 ◽

Vol 11 (13) ◽

pp. 6005

Author(s):

Daniel Villanueva ◽

Moisés Cordeiro-Costas ◽

Andrés E. Feijóo-Lorenzo ◽

Antonio Fernández-Otero ◽

Edelmiro Miguez-García

Keyword(s):

Energy Efficiency ◽

Electric Vehicles ◽

Energy Efficient ◽

Electricity Consumption ◽

Real Data ◽

Mean Values ◽

Led Lighting ◽

Shed Light

The aim of this paper is to shed light on the question regarding whether the integration of an electric battery as a part of a domestic installation may increase its energy efficiency in comparison with a conventional case. When a battery is included in such an installation, two types of electrical conversion must be considered, i.e., AC/DC and DC/AC, and hence the corresponding losses due to these converters must not be forgotten when performing the analysis. The efficiency of the whole system can be increased if one of the mentioned converters is avoided or simply when its dimensioning is reduced. Possible ways to achieve this goal can be: to use electric vehicles as DC suppliers, the use of as many DC home devices as possible, and LED lighting or charging devices based on renewables. With all this in mind, several scenarios are proposed here in order to have a look at all possibilities concerning AC and DC powering. With the aim of checking these scenarios using real data, a case study is analyzed by operating with electricity consumption mean values.

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