Techno-economic investigation of the potential for energy efficiency measures of multi-story apartment buildings at cluster level using different district heating tariffs

The main objective of the monitoring analysed in the article is to evaluate and make recommendations of the actual energy and technical efficiency of the implemented measures of the modernization of multi-apartment buildings. More detailed assessment of energy efficiency measures implemented by modernized buildings, measurements of indoor microclimate and their evaluation is made. Based on the actual heat consumption collected before and after the modernization of buildings, the thermal balance of the building was constructed under the normative conditions. The basics of the methodology, conclusions and recommendations are also presented.

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Methodology of Indicative Analysis to Determine the Municipal Units for Implementation of the Energy-Saving Strategy

Environmental and Climate Technologies ◽

10.2478/rtuect-2020-0059 ◽

2020 ◽

Vol 24 (2) ◽

pp. 115-123

Author(s):

Valery Stennikov ◽

Ivan Postnikov ◽

Olga Edeleva

Keyword(s):

Energy Efficiency ◽

District Heating ◽

Heating System ◽

Eastern Siberia ◽

District Heating System ◽

Energy Efficiency Measures ◽

Second Stage ◽

Efficiency Measures ◽

Irkutsk Region ◽

Order Preference

AbstractThis paper proposes a two-stage approach to choose the priority municipal units for implementing required energy efficiency measures in a district heating system. On the first stage the existing state of district heating system of Irkutsk region (Eastern Siberia) was analysed. On the second stage the choice of municipal units is considered as the Multiple Criteria Decision Analysis (MCDA) problem. The authors selected the most valuable criteria such as tariffs, subsidies and etc. that are rather sensitive for consumers and budget. The Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) was applied to identify the priority municipal units for implementing energy efficiency measures.

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Does the Balance Exist between Cost Efficiency of Different Energy Efficiency Measures? DH Systems Case

Energies ◽

10.3390/en13195151 ◽

2020 ◽

Vol 13 (19) ◽

pp. 5151 ◽

Cited By ~ 2

Author(s):

Ieva Pakere ◽

Dace Lauka ◽

Dagnija Blumberga

Keyword(s):

Energy Efficiency ◽

Renewable Energy ◽

Energy Savings ◽

District Heating ◽

Energy Sources ◽

Heating Systems ◽

Energy Efficiency Measures ◽

Industrial Enterprises ◽

Efficiency Measures ◽

District Heating Systems

The main aim of this study is to evaluate the results achieved by implementation of different support policies in form of subsidies for energy efficiency improvements and transition to renewable energy sources. The article compares the energy efficiency measures in district heating systems with other support program. In order to assess the effectiveness of implementation of different renewable energy technologies and energy efficiency projects, the levelized costs of saved energy for different support programs were determined. Authors compared different co-financed projects related to replacement of fossil fuel energy sources in district heating (mainly to biomass) and the installation of new biomass boilers, heat pumps, solar collectors and other local technologies in municipal buildings. Results show that financial support for energy efficiency measures in industrial enterprises and district heating systems has been most cost-effective, mainly due to the low co-financing rate (30%) and the high potential for energy savings in different production processes. Authors have identified the blind-spots within the funding allocation for different municipalities, which is not always dedicated to achieved energy savings.

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Optimisation of a Swedish district heating system with reduced heat demand due to energy efficiency measures in residential buildings

Energy Policy ◽

10.1016/j.enpol.2011.09.031 ◽

2011 ◽

Vol 39 (12) ◽

pp. 7839-7852 ◽

Cited By ~ 48

Author(s):

M. Åberg ◽

D. Henning

Keyword(s):

Energy Efficiency ◽

Residential Buildings ◽

District Heating ◽

Heating System ◽

District Heating System ◽

Energy Efficiency Measures ◽

Efficiency Measures ◽

Heat Demand

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Impact of Passive Energy Efficiency Measures on Cooling Energy Demand in an Architectural Campus Building in Karachi, Pakistan

Sustainability ◽

10.3390/su13137251 ◽

2021 ◽

Vol 13 (13) ◽

pp. 7251

Author(s):

Mushk Bughio ◽

Muhammad Shoaib Khan ◽

Waqas Ahmed Mahar ◽

Thorsten Schuetze

Keyword(s):

Energy Efficiency ◽

Energy Demand ◽

Electricity Consumption ◽

Information Modeling ◽

Base Case ◽

Energy Efficiency Measures ◽

Efficiency Measures ◽

The Impact ◽

Cooling Energy Demand ◽

Campus Building

Electric appliances for cooling and lighting are responsible for most of the increase in electricity consumption in Karachi, Pakistan. This study aims to investigate the impact of passive energy efficiency measures (PEEMs) on the potential reduction of indoor temperature and cooling energy demand of an architectural campus building (ACB) in Karachi, Pakistan. PEEMs focus on the building envelope’s design and construction, which is a key factor of influence on a building’s cooling energy demand. The existing architectural campus building was modeled using the building information modeling (BIM) software Autodesk Revit. Data related to the electricity consumption for cooling, building masses, occupancy conditions, utility bills, energy use intensity, as well as space types, were collected and analyzed to develop a virtual ACB model. The utility bill data were used to calibrate the DesignBuilder and EnergyPlus base case models of the existing ACB. The cooling energy demand was compared with different alternative building envelope compositions applied as PEEMs in the renovation of the existing exemplary ACB. Finally, cooling energy demand reduction potentials and the related potential electricity demand savings were determined. The quantification of the cooling energy demand facilitates the definition of the building’s electricity consumption benchmarks for cooling with specific technologies.

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