scholarly journals Financing the Renovation of the Cypriot Building Stock: An Assessment of the Energy Saving Potential of Different Policy Scenarios Based on the Invert/EE-Lab Model

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3071 ◽  
Author(s):  
Marina Economidou ◽  
Paolo Zangheri ◽  
Andreas Müller ◽  
Lukas Kranzl
Keyword(s):  
Energy Efficiency ◽  
Hot Water ◽  
Current Status ◽  
Baseline Scenario ◽  
Building Sector ◽  
Building Stock ◽  
Energy Efficiency Policies ◽  
Energy Efficiency Potential ◽  
The Impact ◽  
Policy Scenarios

Despite various government policies promoting energy efficiency in buildings over the last 15 years, Cyprus is still associated with a large untapped energy efficiency potential in this sector. The impact of different policy scenarios on future energy needs of the building sector in Cyprus is explored by first reviewing the current status of the building stock in Cyprus and existing national landscape of energy efficiency policies. Various new policies are then proposed to complement the existing framework and help exploit further the potential. Using the Invert/EE-Lab model, three policy scenarios extending to 2050 are assessed with the aim to estimate the energy efficiency potential of the Cypriot building sector and identify policy solutions to harness this potential. The energy consumed for heating, cooling, hot water, and lighting in the entire Cypriot building stock is expected to drop by up to 16% in 2050 compared to the baseline scenario. Under the most ambitious scenario, nearly 60% of the building stock in 2050 will be energy efficient, consuming less than half of the energy used by the average building stock in 2012. Taking into account the modelling results, recommendations on how to improve the financial landscape in buildings until 2050 are presented.

scholarly journals Understanding Residential Electricity Consumption Considering Energy Efficiency Policies and The Impact On the Electricity System

2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Meryem Tumbuz ◽  
Hatice Muğlkoç
Keyword(s):  
Energy Efficiency ◽  
Behavioral Change ◽  
Electricity Consumption ◽  
Allocation Problem ◽  
General View ◽  
Electricity Use ◽  
Generation Cost ◽  
Residential Electricity ◽  
Energy Efficiency Policies ◽  
The Impact

Electricity consumption increases substantially over the years where residential use significantly contributes to the overall consumption. The growth in the population and variety of home appliances together with increasing comfort levels of the people results in higher levels of residential electricity use. In fact, nearly one fourth of Turkey's total electricity consumption is due to the domestic use. To achieve global sustainability targets and reduce the overall electricity use, focusing on the domestic consumption is crucial. In this research, the energy consumptions patterns of households are determined to identify the potential electricity savings existing in the residential sector. Moreover, specific policy recommendations, which can promote the behavioral change, are driven by measuring the responsiveness of people to different measures and the combinations of these measures such as information, feedback, rewards, and social influences. A survey was conducted to determine the patterns and the responsiveness of the residential customers. The results obtained from the survey are used to depict a general view of Turkish households towards electricity consumption behaviors and their energy efficiency attitudes. Responses indicate there should be more regulations and improvements in energy policy. An electricity allocation problem is solved in order to see possible impacts of behavioral change measures on the network. Scenarios are defined for each policy and allocation problem is solved to see the possible generation cost reduction. Also, gas emissions for each scenario is recorded to understand the possible effects of policies on the environment. Results show that behavioral change studies seem to be well worth to study. In order to reach residential efficiency, possible policy alternatives are suggested for Turkish households.

scholarly journals Energy Efficiency Policies to Face Buildings’ Climate Change Effects in Paraguay

2020 ◽  
Vol 10 (11) ◽  
pp. 3979
Author(s):  
Fabiana Silvero ◽  
Fernanda Rodrigues ◽  
Sergio Montelpare
Keyword(s):  
Climate Change ◽  
Energy Efficiency ◽  
Climate Changes ◽  
South American ◽  
Building Sector ◽  
Hydroelectric Energy ◽  
Climate Change Effects ◽  
Energy Demands ◽  
Mitigate Climate Change ◽  
Energy Efficiency Policies

Nowadays, the importance of implementing energy efficiency (EE) measures is growing significantly worldwide, based on its potential to reduce energy demands and mitigate climate change effects. Paraguay is a developing country with the highest per capita hydroelectric energy generation in the world, but only 18% of local consumption is hydroelectric and 41% of its energy matrix corresponds to oil products. This paper aims to analyse the importance the Country places on EE as a strategy towards sustainable development and to highlight as EE is an effective pathway to mitigate the climate changes and contrast their effects. The authors initially provide an insight into the climate scenarios for Paraguay and underline the effects of the climate changes on the buildings’ comfort. Subsequently, the authors provide, by resourcing a bibliographic review, a description of the Paraguayan sectors of greater energy consumption, its policies and targets set for increasing EE. Besides, the main EE projects developed by other neighbouring South American countries are analysed to show the level of development of each one in the scope of EE and to offer a reference basis of potential virtuous solutions to be adopted in Paraguay. A focus on the building sector is also made to provide a foundation for policy analyses to enhance EE in this sector. As a result of this review, evidence that EE is beginning to take part in Paraguay’s public policies was found, with the leaders becoming aware of its importance. Nevertheless, many concrete results could not be achieved as of yet and overcoming these barriers still involve a great challenge. Regarding the building sector, few advances have been noticed regarding the regulations of buildings’ thermal performance, a reason for which the National objectives set need to be more specific to achieve greater collective awareness to enforce them. Finally, key actions are recommended for Paraguay aiming to improve EE levels to face the climate change phenomenon.

scholarly journals Environmental Impact Assessment of Renovated Multi-Apartment Building Using LCA Approach: Case Study from Lithuania

2021 ◽  
Vol 13 (3) ◽  
pp. 1542
Author(s):  
Vidhyalakshmi Chandrasekaran ◽  
Jolanta Dvarioniene ◽  
Ausrine Vitkute ◽  
Giedrius Gecevicius
Keyword(s):  
Climate Change ◽  
Energy Efficiency ◽  
Energy Use ◽  
Hot Water ◽  
Environment Impact ◽  
Total Energy Consumption ◽  
Operational Energy ◽  
Modernization Process ◽  
The Impact ◽  
Current Energy

In Europe, more than 75% of buildings are energy inefficient according to current energy standards. These buildings account for 40% of total energy consumption. Therefore, addressing the energy efficiency of existing buildings through various renovation measures remains of critical importance. In this study, two differently renovated multi-apartment buildings were selected to evaluate its environment impact using life cycle assessment. The buildings were built during the early 1980s, which did not meet the current energy efficiency standards. In recent times, these buildings were revised by Governmental agencies through the modernization process. The aim of the assessment is to study the environmental impacts associated with different renovation measures that has been carried out. This assessment covers the impact of new materials added, and the operational energy use. The study reveals that renovation stage accounts for 19% CO2 emission. The renovated buildings with renewable measures have a significant impact over climate change than the conventional renovation measures. Moreover, the potential savings in thermal energy used for space heating and domestic hot water preparation are 25% and 40% after conventional and renewable measures renovation, respectively. It was concluded that the total climate change potential could be reduced from 12% and 48% by retrofitting combined with renewable energy measures.

scholarly journals Assessment on the Efficiency of an Active Solar Thermal Facade: Study of the Effect of Dynamic Parameters and Experimental Analysis When Coupled/Uncoupled to a Heat Pump

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 597
Author(s):  
Peru Elguezabal ◽  
Alex Lopez ◽  
Jesus Maria Blanco ◽  
Jose Antonio Chica
Keyword(s):  
Energy Efficiency ◽  
Heat Pump ◽  
Poor Performance ◽  
Heat Pumps ◽  
Solar Thermal ◽  
Solar Irradiation ◽  
Active System ◽  
Building Sector ◽  
Improve Energy Efficiency ◽  
The Impact

The building sector presents poor performance in terms of energy efficiency and is looking for effective alternatives aimed at reducing the use of fossil fuels. The facade is a key element able to harness renewable energy as an Active Solar Thermal Facade (ASTF). The main purpose of this study is the assessment of a novel design concept based on a steel sandwich panel technology. The performance of the active system will be first addressed by a parametric study in order to analyze its behavior and secondly, by describing a real case based on an experimental test by connecting the active panels to a heat pump. The study shows the impact of solar irradiation and mass flow on the thermal jump achieved, while ambient and fluid inlet temperatures are the most influencing parameters in the efficiency of the facade. When coupled to the heat pump, results from a measurement campaign demonstrate a remarkable improvement in the performance of the ASTF. The results presented provide significant proof about the benefits of a synergetic combination of both technologies—solar facades and heat pumps—as efficient alternatives for the building sector, aiming to improve energy efficiency as well as reduce their dependence on non-renewable sources.

scholarly journals LEED Scores of Residential Buildings in Poor Cities: Kabul City Case

2021 ◽  
Vol 13 (12) ◽  
pp. 6959
Author(s):  
Najib Rahman Sabory ◽  
Tomonobo Senjyu ◽  
Adina Hashemi Momand ◽  
Hadya Waqfi ◽  
Nilofar Saboor ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Residential Buildings ◽  
Ghg Emissions ◽  
Residential Building ◽  
Green Building ◽  
Building Industry ◽  
Existing Buildings ◽  
Building Sector ◽  
Building Stock ◽  
Water Transportation

Urbanization and technology have proven to be detrimental to the environment. Buildings contribute a significant portion of this damage. This issue motivated governments, builders, engineers, and architects to seek ways to reduce buildings’ environmental footprints. Leadership in Energy and Environmental Design (LEED), developed by the U.S. Green Building Council (USGBC), is one of the most widely used strategies to ensure energy efficiency and a clean environment in buildings. In Afghanistan, where there are no active regulatory frameworks for energy saving and efficiency for the building sector, it is imperative to promote the transformation of the building industry and practices towards sustainability. In this regard, the role of the residential building sector is of utmost importance due to its major share in the country’s energy consumption and GHG emissions profile. Thus, this study assesses the energy efficiency and environmental impact of existing buildings in Kabul city concerning the LEED rating system. This research suggests practical steps to improve the sustainability of the residential building stock in Kabul city. Robust sets of data on existing residential buildings in Kabul are collected, classified, evaluated, and compared to LEED standards. This research reveals and concludes that most of the existing buildings in Kabul city are in poor conditions and do not meet the minimum requirements to be a candidate for LEED certification. A detailed analysis of the results has led to recommendations on how these buildings could improve to meet the LEED criteria. This is the first study of its kind conducted for Kabul city residential building. Considering the cross-sectoral nature of the building industry, the findings of this study will contribute to many other areas such as water, transportation, ICT, health, energy and the environment.

scholarly journals Economic and Environmental Assessment on Implementing Solar Renewable Energy Systems in Spanish Residential Homes

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4183
Author(s):  
Alberto Cerezo-Narváez ◽  
María-José Bastante-Ceca ◽  
José-María Piñero-Vilela
Keyword(s):  
Energy Efficiency ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Environmental Assessment ◽  
Hot Water ◽  
Solar Thermal ◽  
Small Scale ◽  
Gas Emissions ◽  
Energy Behavior ◽  
The Impact

In Europe, buildings are responsible for more than one third of the total final energy demands and greenhouse gas emissions. In the last twenty years, the European Union has published a succession of energy performance of building directives to define and ensure the fulfilment of a series of objectives regarding greenhouse gas emissions, energy consumption, energy efficiency and energy generation from renewable sources in buildings. For its part, Spain is adapting its legal framework, transposing these directives with the aim of achieving greater energy efficiency and sustainability for buildings. Under this context, an energy, economic and environmental assessment is performed to analyze the impact of these regulatory changes on a single-family home including a photovoltaic installation for self-consumption with surpluses and/or a solar thermal installation for domestic hot water supply, located in each one of the eight thousand one hundred thirty-one municipalities that make up Spain. The energy behavior of the original house is compared with that obtained after it is updated with these new facilities. The transient system simulation tool is used for the energy study. The results show that the European objectives are far exceeded. The energy savings achieved range from 67% to 126%, carbon dioxide emissions decrease by 42% to 100% and energy bills are reduced in cost by 32% to 81%. The findings of this work can be used by policymakers as guidelines for the development of national strategic plans and financial incentives for the promotion of small-scale residential photovoltaic and solar thermal applications, as well as by designers, supervisors, managers and developers to include them in their projects.

scholarly journals Linking Energy Poverty with Thermal Building Regulations and Energy Efficiency Policies in Portugal

Energies ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 329
Author(s):  
Ana Mafalda Matos ◽  
João M. P. Q. Delgado ◽  
Ana Sofia Guimarães
Keyword(s):  
Energy Efficiency ◽  
Winter Season ◽  
Clean Energy ◽  
Energy Performance ◽  
High Energy ◽  
Energy Prices ◽  
Building Stock ◽  
Energy Poverty ◽  
Building Regulations ◽  
Energy Efficiency Policies

Energy-poverty (EP) must be considered an energy-related issue since buildings are a central part of people’s daily lives. Thus, it has an important role in energy-related policy implementation. Even though the European Union (EU) has endorsed general energy efficiency through the Energy Efficiency Directive and Energy Performance of Buildings Directive recast, it was the Clean Energy Package for all Europeans that clearly highlighted EP. The growing concerns with EP have also been emphasised in subsequent directives and initiatives. Despite some regulatory framework and the milder climate situation, the proportion of the population experiencing thermal discomfort in southern and eastern European countries, namely in the winter season, is relatively high, reflecting the poor thermal performance of building stock, low family incomes and high energy prices, among others. The current work analysed the EP evolution in Portugal in the EU context, and the Thermal Building Regulations and Energy Efficiency Policies developed, aiming to add insight into the effectiveness of those policies concerning EP mitigation in Portugal as an EU Member state. Moreover, a critical debate on the potential to lower the EP Portuguese situation was also an objective to pursue. It is plausible to admit that reducing EP by acting on residential building stock, namely through the increase of energy efficiency and comfort, plays a key role in improving the living conditions, namely of vulnerable households and deprived areas. This will also decrease energy consumption and dependence while further promoting a smarter, sustainable and inclusive society, contributing to economic growth.

scholarly journals AN ASSESSMENT OF THE IMPACT OF BRAZILIAN ENERGY EFFICIENCY POLICIES FOR ELECTRIC MOTORS

Energy Nexus ◽  
2021 ◽  
pp. 100033
Author(s):  
Danilo Ferreira de Souza ◽  
Francisco Antônio Marino Salotti ◽  
Ildo Luís Sauer ◽  
Hédio Tatizawa ◽  
Aníbal Traça de Almeida ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Electric Motors ◽  
Energy Efficiency Policies ◽  
The Impact

scholarly journals Global scenarios of residential heating and cooling energy demand and CO2 emissions

2021 ◽  
Vol 168 (3-4) ◽  
Author(s):  
Alessio Mastrucci ◽  
Bas van Ruijven ◽  
Edward Byers ◽  
Miguel Poblete-Cazenave ◽  
Shonali Pachauri
Keyword(s):  
Climate Change ◽  
Energy Efficiency ◽  
Energy Demand ◽  
Mitigation Strategies ◽  
Space Heating ◽  
Choice Modelling ◽  
Building Sector ◽  
Building Stock ◽  
Heating And Cooling ◽  
Space Cooling

AbstractBuildings account for 36% of global final energy demand and are key to mitigating climate change. Assessing the evolution of the global building stock and its energy demand is critical to support mitigation strategies. However, most global studies lack granularity and overlook heterogeneity in the building sector, limiting the evaluation of demand transformation scenarios. We develop global residential building scenarios along the shared socio-economic pathways (SSPs) 1–3 and assess the evolution of building stock, energy demand, and CO2 emissions for space heating and cooling with MESSAGEix-Buildings, a modelling framework soft-linked to an integrated assessment framework. MESSAGEix-Buildings combines bottom-up modelling of energy demand, stock turnover, and discrete choice modelling for energy efficiency decisions, and accounts for heterogeneity in geographical contexts, socio-economics, and buildings characteristics.Global CO2 emissions for space heating are projected to decrease between 34.4 (SSP3) and 52.5% (SSP1) by 2050 under energy efficiency improvements and electrification. Space cooling demand starkly rises in developing countries, with CO2 emissions increasing globally by 58.2 (SSP1) to 85.2% (SSP3) by 2050. Scenarios substantially differ in the uptake of energy efficient new construction and renovations, generally higher for single-family homes, and in space cooling patterns across income levels and locations, with most of the demand in the global south driven by medium- and high-income urban households. This study contributes an advancement in the granularity of building sector knowledge to be assessed in integration with other sources of emissions in the context of global climate change mitigation and sustainable development.

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