Implementation Of Energy Efficiency Measures Research Articles

Impact evaluation of an energy efficiency network policy programme for industrial SMEs in Sweden

Improved energy efficiency is a key factor in the shift towards sustainable energy systems and net zero emissions, both locally, regionally and globally. The total energy efficiency potential in industrial SMEs is high, but despite this large potential for improved energy efficiency, the full potential is not realized due to several barriers to implementation of energy efficiency measures. The barriers vary based on e.g., geographic location, company size, sector, etc., but for industrial SMEs the main barriers are other priorities, lack of time and lack of information about energy efficiency measures. Energy efficiency networks help companies with the support needed to successfully work with energy efficiency on site, such as conducting an energy audit, making an energy and implementation plan, and monitoring the results. However, there is so far a scarcity of ex-post evaluations of energy efficiency network policy programmes. The aim of this paper is to provide an ex-post impact evaluation of a Swedish regional energy efficiency network programme and propose a general method on how to evaluate energy efficiency networks. Results show that the achieved energy efficiency for the evaluated network policy programme is higher than previously evaluated stand-alone energy audit programmes, and that the majority of deployed energy efficiency measures are found among the support processes, such as space heating, ventilation and lighting.

Pathways towards carbon neutrality: A participatory analysis of the Gothenburg’s energy plan

Among International Energy Agency members, Sweden is one of the upfront countries in implementing energy policies to achieve zero net emissions. Despite having the lowest share of fossil sources in its primary energy supply, becoming carbon neutral by 2045 is a challenging target. To meet the national goal, cities’ roadmaps and strategic plans have a leading role in facilitating the implementation of energy efficiency measures and renewable production systems. However, succeeding in city energy transitions requires envisioning and understanding of risk and vulnerability levels of the new socio-technical energy system. This study presents a review of the City of Gothenburg’s Energy Plan 2022-2030 and discusses potential challenges for its implementation. Based on a document study, stakeholder workshop, and interviews the research identifies four key aspects: i) the coordination between energy and urban planning, ii) the future stability of district heating and cooling, iii) the balance in electrification of the buildings and transport, iv) communication and tools in decision-making processes. Finally, the study suggests new measures that should be allocated in the plan to guarantee the development of instruments and analysis for addressing the identified challenges.

Fostering deep renovation and unburdening homeowners through digital platforms

The customer journey of private homeowners towards deep renovation poses several challenges resulting in users not implementing energy efficiency measures. The conversion rate from orientation to implementation needs to increase and the whole renovation process to accelerate. Platforms are seen as playing a key role in accelerating renovations, acting as intermediary between the customer and the providers, reducing the friction between demand and supply. In this paper, we provide an overview of roles and impacts of digital platforms accelerating sustainability in the Dutch built environment. We analysed the outlook of 64 existing (digital) platforms to study their role in the customers journey. Our findings suggest that platforms offering individual guidance in the orientation phase of the customer journey are more likely to witness homeowners choosing for one or multiple energy efficient interventions as opposed to collective initiatives.

Design for energy flexibility in smart buildings through solar based and thermal storage systems: Modelling, simulation and control for the system optimization

The present study investigates the use and implementation of energy efficient measures and strategies for building applications, toward the Nearly Zero Energy Buildings target. Specifically, objective of the study is to implement building integrated photovoltaic thermal devices coupled with a phase change materials heat exchanger acting as an active thermal storage building component, with the aim to add flexibility to the building while still maintaining indoor comfort conditions. To show the potentials of the novel configuration proposed in this paper, a multi-zone grey-box model is developed and validated to capture the thermal dynamics of a building, and a control strategy applied to the whole system is developed for energy management purpose. The whole simulation model, including thermophysical properties of the building-system and the control features, is implemented in a MATLAB environment. To assess the model and application potentials toward the optimal design and operation of the proposed system for energy efficiency and flexibility goals, a suitable case study analysis is conducted. Thus, a sensitivity analysis, using an evolutionary algorithm, is performed by considering economic and energy objective functions which focuses on the reduction of the building energy demand, load variability and economic aspects. In this regard, the optimal design configuration is underlined in a way that the operation of the components can be maximized to provide flexibility to the building: in average working conditions one single layer of PCM can provide around 186.3 Wh/K per unit of temperature and width. A rule-based management strategy is proposed to prove the possibility to shift and shave the energy peaks during high energy request periods, demand response events. Finally, by considering an approximate economic calculation, the simple payback, taking into account only the positive effects on the winter management, is around 13.5 years.

ევროპის „მწვანე შეთანხმება“ და მისი გავლენა საქართველოს ენერგეტიკულ სექტორზე

Energy is a key field of not only economic, ecological, climatic, but also political challenges and risks of modernity. Special attention is paid to the energy sector in the context of global climate change. Increasing the use of solar, wind, hydropower, geothermal energy and biomass will reduce greenhouse gas emissions and switch to fossil fuel-based economies of clean sources. The European Union- goals to replace traditional energy with renewables - are becoming more ambitious each time. The “Global Green Agreement”, which should be the basis of the EU's economic vision, provides additional incentives for this. In the paper has been conducted an energy economic analysis of Georgian energy; Have been discussed the target indicators and characteristics of the energy sector; The most important tasks of energy security, energy saving and raising the level of energy efficiency is formulated; The directions to solve these problems are outlined in this work. Second of all, Georgia should try to engage in a series of radical, revolutionary changes known as the "4th Energy Transition." With this transition, the use of fossil fuels will be reduced to a minimum in the next 10 years, and in 2050 the correction of "carbon neutral" energies around the world is announced. The use of solar and wind energy requires backup capacities, the cheapest source of which is again hydropower. In the paper we have substantiated and analyzed the most important issues of the need to develop hydropower resources and give recommendations based on research. In our opinion, in order to deepen political and economic relations with the EU, it is important to gradually bring Georgian legislation closer to the European one, which will help establish a concrete, transparent and efficient energy market model, create an attractive and stable investment environment, develop energy resources through the development of renewable energy resources and the implementation of energy efficiency measures. On the other perspective the Green Agreement” of Europe is a long-term path to the transition to a lowcarbon economy, in accordance with the terms of the Paris Agreement. It envisions Europe as the first carbon neutral continent by 2050. To achieve this goal, the EU plans to reduce emissions by 50% by 2030 compared to 1990. Naturally, this can only be achieved through the adoption and implementation of relevant strategic documents and decisions. Accordingly, our paper discusses the main essence of the Green Agreement, the challenges associated with its implementation and its impact on the future of the Eastern Partnership, especially Georgia.

The Ring Fencing Mechanism: a case study of innovative self-financing approach for energy efficiency upgrades.

This paper introduces an enhanced energy auditing process including a ring-fencing mechanism for the selection of energy efficiency measures considering a multi-stage planning of the energy retrofitting project. The proposed ring-fencing approach enables SMEs to overcome the barrier of lack of capital for the implementation of energy efficiency measures by implementing first no-cost measures and only after that energy savings are accumulated considering the installation of low-cost, medium-cost and finally high-cost measures. The advantages of the proposed methodology are illustrated by means of three case studies, where a variety of energy efficiency measures were first identified throughout the auditing process involving three different SMEs, then most effective measures were selected and scheduled to be implemented according to a multi-annual plan while considering budget and operational constraints. The results of the pilot studies show that the business owners have improved their decision-making with respect to energy efficiency upgrades by engaging in the auditing process and accepting the recommendations about the suggested interventions to maximize financial (and environmental) benefits.

New paradigms in bioclimatic design toward climatic change in arid environments

Energy consumption in buildings has increased exponentially since the industrial revolution. Given this scenario, the Argentinian government has proposed to implement energy efficiency measures in the public and private sectors with the aim of reducing energy demand by 10.3% by 2030 [72]. The Rational and Efficient Energy Use Program (PROUREE) aims to reduce consumption levels in buildings of the National Public Administration (NPA), assuming an exemplary role before the rest of the society [73]. In this context and, as a first instance, this study aims to know the performance of a bioclimatic building of the NPA currently constructed in an arid climate with high irradiance, when exposed to the consequences of CC. After validation in Energy Plus with data measured in situ, and considering that these types of buildings are replicated in the region, a simple design strategy is proposed to increase thermal, daylighting, and energy performance by 2099, without changing the project: the building was rotated 180° (case B), allowing to reduce direct solar gain, increase exposure to the strongest summer breezes and homogenize daylighting. The findings suggest that the implementation of these passive design parameters through an integrated analysis (energy, daylighting, and thermal comfort), can reduce energy consumption by 33.82 Kwh/m2, which represents 51.82% of the total energy consumption of the building in arid climates with high solar irradiance (Measured case = 65.26kwh/m2. Improved case = 31.44kwh/m2). These obtained reference values will serve as a source of reference for designers and policymakers to anticipate climate change and counteract the effects of CC through energy efficiency.

Hybrid solar photovoltaic thermal systems in Nearly-Zero Energy Buildings: the case of a residential building in Greece

ABSTRACT The continuous increase in energy demand has led to the gradual depletion of fossil fuels and the corresponding environmental degradation. As a result, the implementation of energy efficiency measures, as well as the integration of Renewable Energy Sources systems, are a challenge on the road towards Nearly-Zero Energy Buildings. Within the framework of this study, an extensive literature review was carried out on the existing Photovoltaic/Thermal collector technologies, their energy, environmental and economic efficiency. Furthermore, a solar combi system with photovoltaic/thermal collectors installed in a residential building was studied. The system was evaluated for its energy and environmental efficiency. Finally, the results in terms of thermal efficiency and carbon footprint were compared with those of a solar combi system with a flat plate collector.

Energy efficiency of Heating, Ventilation and Air Conditioning systems in production environments through model-predictive control schemes: The case of battery production

In the German industry Heating, Ventilation and Air Conditioning (HVAC) systems account for 11 %–20 % of the final energy consumption. Usually HVAC systems are dimensioned based on static extreme values and thus during most of the operation time, HVAC systems tend to be overdimensioned. In addition, the extensive literature review of 40 papers shows that often topics on model-based energy efficiency improvement are commonly performed for office or residential buildings, but rather rarely for production environments. Furthermore, the performance of control schemes for energy efficiency improvement are rarely compared with each other or incompletely compared with each other. In this publication, we use the framework of a Cyber–Physical Production System (CPPS) to compare the performance of four main control schemes, ranging from simple time-based control to model-predictive control, which has not been done in the context of battery production before. Over a fixed observation period, the four control schemes are transparently compared with each other in a case study using the example of the Battery LabFactory Braunschweig (BLB). Compared to the initial state, a significant reduction in final energy demand can be achieved with all examined control approaches, which is even up to 37.29% in case of the model-predictive control. Surprisingly, even simple control approaches, without any predictions, have a good energetic saving potential of up to 20.22% compared to the initial state, which is why they are initially recommended for practical implementation. Moreover, we publish all source code of the control schemes, in order to encourage the implementation of energy efficiency measures in further applications not restricted to battery production.

Evaluating the Impact of Public Information and Training Campaigns to Improve Energy Efficiency: Findings from the Italian Industry

Energy efficiency is a pillar for the energy system transition and for reaching the Sustainable Development Goals. In the light of the “energy efficiency first!” principle, European member states enforce policies to spread energy saving throughout the whole energy chain involving both citizens and industries. In this context, information and training campaigns arise as valuable support tools to disseminate energy efficiency and, therefore, for reducing energy consumption. Although various studies have evaluated the impact of information campaigns targeted to citizens, there is a lack of investigations that assess the impact of campaigns dedicated to industry sectors. This study discusses the results of a survey targeted at energy-intensive Italian companies, with a sample of 300 responses. Starting from the analysis of drivers that trigger the implementation of energy efficiency measures, the paper proposes an approach to evaluate the amount of energy savings linked to the Italian information and training program targeted to industries carried out by the Italian Energy Efficiency Agency. Results show that although information campaigns are not a crucial driver for companies, they are recognized as a factor that contributes to the implementation of energy efficiency practices. Findings show that roughly 1.4% of energy savings noted by interviewed companies to the Italian Energy Efficiency Agency are a direct effect of the information and training program. This outcome has significant implications, especially for decision-makers, giving evidence of the efficacy of information campaigns on industries, which have great potential for the transition to low carbon production systems.

RENOVATION OF MULTI-APARTMENT RESIDENTIAL BUILDINGS IN LATVIA

The origin of current climate change (unlike other past climate changes) is the increase in the so-called greenhouse effect. Several atmospheric gases are able to absorb infrared radiation intensively. Such gases are carbon dioxide (CO2), methane (CH4), water vapour, as well as nitrous oxide (N2O) and other gases. They are permeable to incoming radiation, but block the infrared (heat) radiation reflected from the earth’s surface. These gases are called greenhouse gases. One of the solutions to reduce the greenhouse effect is to implement energy efficiency measures in multi-apartment residential buildings. The total multi-apartment housing stock in Latvia continues to age. Most residential buildings in Latvia were built during the Soviet period (1946–1990), the second largest category – even before the Second World War. Only a very small proportion of buildings have been built since the restoration of the country’s independence. As a result, the overall condition of buildings in Latvia can be assessed as poor or even unsatisfactory. Some multi-apartment buildings are so dilapidated that they endanger the safety and health of both tenants and the surrounding residents. The involvement of apartment owners and managers in the renewal of the housing stock is largely related to financing that they cannot afford to invest themselves. The support mechanism for the renovation of multi-apartment residential buildings is the European Union funds, as well as the Investment and Development Agency of Latvia (LIAA) and ALTUM. In the ALTUM programme, the maximum grant or gift limit is 50% of the total eligible costs, while the other part of the financing is covered through a commercial bank that has a cooperation agreement with ALTUM or the funds or savings of the tenants. LIAA and ALTUM support programmes have different funding models. As a result of the research, it has been proven that the renovation of multi-apartment buildings is a complex, financially expensive and complicated project that cannot be implemented without the European Union co-financing.

Energy Efficiency of the Ukrainan Economy: Problems and Prospects

The purpose of the article is to assess the current state of energy efficiency of Ukrainian economy and outline ways to increase it.
 The problem of high energy intensity of Ukrainian GDP is studied. The Ukraine’s position in the world on this indicator is analyzed. It is established that the main reasons for low energy efficiency of the national economy are the depreciation of fixed assets of large industrial enterprises; technological losses of electricity in the networks, which account for 11.6% of the total supply; lack of financial resources for the implementation of energy efficiency measures, lack of a systematic approach to energy consumption.
 The experience of implementation of Smart Grid projects of intellectual energy in the countries of the world is considered. It is established that more than 2930 organizations from 50 countries of the world take part in these projects. The main investments in Smart Grid projects are concentrated in: Denmark, Germany, Spain, France, Great Britain, France, Belgium and Sweden. In the European Union, companies implementing such innovative projects are reimbursed half of the costs of their implementation.
 The directions of the state energy saving policy in Ukraine are described: adoption of the Law of Ukraine “On Energy Saving”; creation of the State Agency for Energy Efficiency and Energy Saving of Ukraine; approval of the Energy Strategy of Ukraine for the period up to 2035; development of the draft Concept of integrated implementation of Smart Grid in Ukraine until 2035, which aims to reduce technological losses of electricity to 7.5%.
 It is concluded that it is necessary to create energy management systems (SEM) at large enterprises, which will optimize the volume and modes of electricity consumption and reduce its losses in the production process. The main functions of SEM, principles of energy efficiency management at the enterprise and functions of the energy manager are defined.

Barriers and drivers for industrial energy management: The frontline perspective

Implementing energy efficiency measures is widely regarded as a high priority in the search for carbon dioxide emission reductions and can create competitive advantage for industry. Yet, approximately 50% of industry's cost effective energy efficiency measures are never implemented. The lack of implementation of energy efficiency measures results in the energy efficiency gap, which is generally attributed to barriers. Attempts to close the gap are directed at overcoming barriers and leveraging drivers. However, the current view of barriers and drivers may be incomplete due to the under representation of frontline workers' perspectives in research. Frontline workers strongly influence energy use because they make decisions about how and when industrial equipment is operated and maintained. This study compares survey responses from frontline workers and managers to investigate the barriers and drivers to industrial energy efficiency. Analysis of free text responses found perceived barriers and drivers for energy efficiency are different for frontline workers and managers. Differences between frontline workers' and managers' views are less prominent when only responses to Likert-type questions are considered. In response to this, new taxonomies for barriers and drivers were created. It is proposed these new taxonomies will be useful for empirical research as they can incorporate more complete views of frontline workers and managers. Common methods used to overcome barriers may have limited impact on the barriers found in this study. This more complete understanding of barriers and drivers could be useful for industry to characterise their challenges, contribute meaningfully to policy creation and generate new ways to close the energy efficiency gap. The novelty of this research stems from its investigation and presentation of the frontline workers' perspective. Further research into drivers, barriers and data gathering for frontline workers is needed to validate this exploratory study.

Izazovi energetske tranzicije u sektoru individualnog grejanja

This paper presents the results of a household survey about individual heating conducted in Serbia in 2020. The objective of the survey was to examine the details of individual heating systems in households and households’ attitudes regarding the energy transition. The results indicate the obsolescence of the heating system, low efficiency, insufficient investment in the implementation of energy efficiency measures, and lack of funds for investment in sustainable heating. The main priorities when choosing a mode of heating are heating system costs and fuel costs, while the impacts of environmental factors and energy transition awareness are relatively weak. The cost of heating systems has also been identified as the biggest barrier to replacing existing systems. On the other hand, about half of households have a positive attitude towards potentially subsidizing the replacement of current heating systems with new and more efficient ones.

Assessing Energy Efficiency Measures for Hydraulic Systems using a Digital Twin

As manufacturing companies around the world face the challenge of reducing CO2 emissions and achieving their climate goals, increasing energy efficiency provides a promising solution while potentially reducing costs. Hydraulic systems are used in a wide range of applications such as heating, ventilation, air conditioning or machine tools and account for approximately 11 % of the electric energy demand in the German industry in 2017. Furthermore, up to 25 million tons of CO2 are emitted annually in Germany as a result of their operation. Against this background, the following paper aims to increase the energy efficiency of hydraulic systems through automated assessment of energy efficiency measures during system operation. Therefore, we present a modular approach for real-time assessing of energy efficiency measures using a digital twin, which contains an expert system combined with real-time simulation models. To detect inefficiencies without time consuming analysis and substantial user expertise, the expert system automatically identifies system leakage and increased flow resistance using a multi-output regression model. Finally, the expert system aims at engaging operators to implement energy efficiency measures by quantifying their respective energy saving potentials. The proposed measures are applied to the virtual representation of a hydraulic system in real-time. Therefore, a Modelica simulation model is developed, which is exported as a functional mock-up unit (FMU) and integrated into a Python framework. If measures lead to an improvement in energy efficiency, these are recommended to the operator. The overall concept is validated using a physical hydraulic system within the ETA Research Factory. The validation of the prototype shows that the developed approach can be applied to industrial applications and help in reducing their energy consumption.

Energy Efficiency in the Competitiveness of the Textile Industry

The aim of this scientific contribution is to show the ways in which efficient energy management influences the competitiveness of companies in the textile industry. To achieve this objective, the present investigation carries out a bibliographic review of the scientific contributions socialized by the Scopus database, and the information detected in the databases of the International Energy Agency (IEA) and International Renewable Energy Agency (IRENA) was analyzed in Excel spreadsheets. In this scientific contribution, the following topics of results are found: 1) Bibliometric analysis of published research related to Energy efficiency in the competitiveness of the textile industry. 2) Energy use in the textile industry and breakdown of energy use by end use. 3) Opportunities to improve energy efficiency in the textile industry. There are several options for implementing efficient energy management in textile plants, many of which are profitable. However, even cost-effective options are often not implemented in textile mills mainly due to limited information on how to implement energy efficiency measures, especially given that most textile mills are classified as small and medium-sized enterprises. Furthermore, it is a reality that these particular plants have limited resources to acquire this information. This fact means that technical knowledge on energy efficiency technologies and practices must be prepared and disseminated among textile plants.

Implementation of "Intellectual networks" – direction of ensuring the energy efficiency of the national economy of Ukraine

At the present stage of development of the world economy and almost all countries’ national economies, the problem of energy saving and energy efficiency rises. In developed countries, the solution to this problem depends not only on reducing energy consumption but also on the introduction of new innovative processes in power supply systems and energy systems. In particular, there is a growing interest in the modernization of energy systems in the world in recent years based on a new concept called Smart Grid ("intelligent power system"). The problem of energy efficiency is especially relevant for Ukraine, which has the highest value of energy intensity of gross domestic product, and the country's energy system is characterized by extremely high losses of electricity in the grid. The largest consumers of electricity in Ukraine are large industrial enterprises, where the high energy intensity of production is caused by the depreciation of fixed assets; lack of incentives to implement energy efficiency measures and of a systematic approach to energy consumption; lack of financial resources for the implementation of energy efficiency measures. Issues of identifying the problems of energy efficiency of the economy and ways to solve them are set out in the scientific works of such researchers as S. M. Baliuta, O. S. Bykonia, A. Yu. Danilkova, Ya. V. Krutohorskyi, O. O. Liakhova, Yu. T. Matvieieva, H. H. Pivniak, S. V. Sapozhnikov, O. V. Fedirets, V. O. Shvedun. Without diminishing the results of the previous research, it should be noted that a number of problematic issues on this topic are still studied insufficiently, which determines the relevance of the research topic. The aim of this research is to assess energy efficiency as a factor of the competitiveness of Ukraine's industrial products, justify the main reasons for the high energy intensity of GDP in Ukraine, and the necessity of innovative direction for the future development of energy through the implementation of "smart grids". Analysis of the energy sector’s current state and development has shown that the problems in the power industry today can not be solved only by extensive capacity-building of grids and increasing the number of electrical equipment. A new direction in the future development of energy is the implementation of smart grids ("Smart Grid"). The domestic national economy has problems with energy efficiency and energy saving. The solution to these problems lies in the field of implementing energy management and audit, studying and using foreign experience in the development of intelligent energy.

Assessing the impact of energy efficiency measures on load diagram shape\u2014a case study in the Portuguese residential sector

This paper intends to address the effect of energy efficiency and load management measures on load diagrams. In order to assess this specific impact, diagrams of load variations caused by energy efficiency measures are proposed. A case study is used to illustrate the effects of energy efficiency measures implemented under the Portuguese plan for the promotion of efficient electricity use (PPEC). The diagrams of load variations were estimated for measures targeting the residential sector which were approved in the six PPEC editions launched until presently. The measures were grouped according to the targeted energy service. The results of this case study indicate that energy distribution operators can change their load diagram by implementing energy efficiency measures in consumer dwellings, with demand reduction at critical periods. It is shown that energy efficiency in lighting measures can help smoothen the evening demand peak at 10 p.m. On the other hand, the effect of hot water measures, although beneficial in terms of energy saving, may increase the negative power gradient occurring at 9 a.m. due to photovoltaic generation under clear sky conditions. Diagrams of load variations can help to estimate the impact of energy efficiency measures on the network load diagram and can give important information for decision support to the distribution system operator, the utilities, and the energy regulator.

Techno-economic-environmental impacts of industrial energy assessment: Sustainable industrial motor systems of small and medium-sized enterprises

Energy assessments can provide an effective way of identifying and implementing energy efficiency measures to save energy costs and avoid emissions throughout manufacturing facilities. Consequently, it generates significant economic and environmental benefits to localities, states, and the nation. Quantifying these benefits requires a systematic techno-economic-environmental framework for capturing the interactions. This article employs methodologies to improve the energy efficiency of small and medium-size industries through their sustainable industrial motor systems. Motor systems offer large opportunities to enhance energy efficiency through adopting advanced technologies and better-informed operations. Case studies presented illuminate the potential savings and impacts from implementing sustainable motor systems and the importance of energy assessments. The integrated macro-economic analysis quantifies the regional sustainability impacts of implementing the industrial energy efficiency offered by an energy auditing program in Ohio over a ten-year period. Results show that implementing all the center’s motor recommendations have directly saved $702 M in energy costs, avoided 2.7 million metric tons of carbon dioxide emissions, and created 3,445 jobs, resulting in a total annual economic impact of $788 M stemming from direct, indirect, and induced regional economic impacts. It provides policy implications for encouraging sustainable industrial motor systems.

An analysis of decision-making process of shipowners for implementing energy efficiency measures on existing ships: The case of Turkish maritime industry

Many technical and operational measures provide energy efficiency for existing ships. The decision-making process is very complex as shipowners must consider many criteria regarding the implementation of these measures. This study aims to determine the criteria that shipowners consider while they select energy efficiency measures for existing ships, and the importance levels of these criteria based on shipowners’ opinions. Besides, this study aims to determine which energy efficiency measures are preferred more according to the criteria that shipowners consider when they select energy efficiency measures. The questionnaire surveys were conducted face-to-face with twenty-three participants who were senior managers and/or inspectors of shipowner companies in Turkey, and each participant represents one company. The importance levels of the criteria that affect the decision-making process were determined by using the Fuzzy AHP (Analytical Hierarchy Process) method based on obtained quantitative data. The performance values of energy efficiency measures were determined by using the fuzzy TOPSIS (Technique for Order Preference by Similarity to an Ideal Solution) method. According to the findings, the most important criterion was “Practicality Level of Planning, Procurement and Installation Process”. The energy efficiency measure with the highest performance value was “Hull Cleaning”. It was seen that the most preferred energy efficiency measures were operational measures instead of retrofit and technical measures.