Energy Efficiency
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Bundling residential rooftop photovoltaics with energy efficiency upgrades: does it really pay off?
Energy Efficiency - Tập 14 - Trang 1-17 - 2021
Using data from a survey of solar adopters in the USA, the present paper examines the effect of adding insulation on electricity bill savings. We identify whether solar adopters added insulation to their house close to the time of rooftop photovoltaics (PV) installation as a bundling strategy, and examine whether such decisions are correlated with higher electricity bill savings. We find that only......
Solar heat gains through train windows: a non-negligible contribution to the energy balance
Energy Efficiency - Tập 11 - Trang 1397-1410 - 2018
The sector of transportation accounts for about one third of the total energy consumption in Switzerland. A monitoring campaign of the energy consumption of a regional train revealed the critical energy-consuming systems. Heating, cooling and ventilation were identified as major consumers. Windows are a source of non-controlled heat transfer. In summer, it may result in overheating leading to larg......
Decomposing the decoupling indicator between the economic growth and energy consumption in China
Energy Efficiency - Tập 8 - Trang 1231-1239 - 2015
The decoupling theory is an appropriate tool to study the relationship between economic growth and energy consumption (or environment pollution). But the underlying causes of the states of decoupling are difficult to find. Based on the Log–Mean Divisia Index (LMDI) theory, this paper provides a new way to find the nature of the factors governing the changes in the state of decoupling between the e......
An energy efficiency-based classification approach for street lighting by considering operational factors: a case study of Barcelona
Energy Efficiency - Tập 14 - Trang 1-32 - 2021
This paper presents a new energy efficiency-based classification approach for street lighting. This approach considers the improvement of visual performance by correcting the standard photometry system (photopic) by the mesopic system, recommended within the CIE 191:2010 and the operational hours of the lighting system, aspects that are usually disregarded by the most-used energy classifications. ......
The thermal behaviour of extensive green roofs under low plant coverage conditions
Energy Efficiency - Tập 8 - Trang 881-894 - 2015
Green infrastructure for buildings, such as extensive green roofs, can improve the urban environment. Previous experimental studies confirm the benefits of these systems from different approaches: energy, hydraulics, materials, etc. But, it is necessary to obtain data about its behaviour in real cases, where conditions could be very heterogeneous: different surface finish, low vegetation cover in ......
A sensitivity analysis of a cost optimality study on the energy retrofit of a single-family reference building in Portugal
Energy Efficiency - Tập 11 - Trang 1411-1432 - 2018
Improvement of the energy efficiency of residential buildings must ensure compliance with cost optimality criteria, assuming a specific lifespan of the building. At the same time, the energy retrofit of buildings ought to preserve their intrinsic architectural and heritage value. Portuguese residential buildings constructed before 1960 did not follow any energy efficiency rules. They represent 29%......
The persistent effectiveness of online feedback and controls for sustainability in the workplace
Energy Efficiency - Tập 10 - Trang 1143-1153 - 2017
Office workers tend to waste energy at work due to little motivation for saving energy. This study investigates the effectiveness of online feedback (e.g., self-monitoring, advice, comparison) and control strategies (e.g., online remote control, scheduled control) that can promote voluntary energy conservation in the workplace. Eighty office workers were divided into four groups, and feedback and ......
Modelling useful energy demand system as derived from basic needs in the household sector
Energy Efficiency - Tập 7 Số 5 - Trang 903-921 - 2014
A MEPS is a MEPS is a MEPS: comparing Ecodesign and Top Runner schemes for setting product efficiency standards
Energy Efficiency - - 2013
Assessing the importance of car meanings and attitudes in consumer evaluations of electric vehicles
Energy Efficiency - Tập 9 - Trang 495-509 - 2015
This paper reports findings from a research study which assesses the importance of attitudinal constructs related to general car attitudes and the meanings attached to car ownership over evaluations of electric vehicles (EVs). The data are assessed using principal component analysis to evaluate the structure of the underlying attitudinal constructs. The identified constructs are then entered into ......
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