Energy Consumption and Savings in Indonesian Resort Hotels

Table of Contents

1 Foundations

1.1 Overview

1.2 Indonesia and Tourism

1.3 Weather and Climate Conditions

1.4 The Energy Sector of Indonesia

1.4.1 Supply Side

1.4.2 Demand Side

1.4.3 Energy Policy

1.4.3 Energy Prices

1.4.4 Trends for Energy Efficiency in Buildings

2 Research Method

2.1 Reasons for the selected Method

2.2 Energy Consulting

2.2.1 The German Guideline VDI 3922

2.2.2 Energy Consulting Approach by the dena

2.2.3 Implementation

2.3 Data Processing

2.3.1 Energy Conversion Factors

2.3.2 Correction of the Energy Consumption

2.3.3 Energy Characteristic Values

2.4 Comparison with Benchmarks

2.5 Economic Concepts

2.5.1 Methodical Procedure

2.5.2 Static Payback Period

2.5.3 Dynamic Economic Concepts

3 Findings of the Energy Consultations

3.1 About the collected Data

3.2 Introduction of the Hotels

3.3 Current Energy Situation of the inspected Hotels

3.3.1 General

3.3.2 Current Practice and Energy Infrastructure

3.3.3 Energy Consumption and Energy Carrier Mix

3.3.4 Constant and variable Energy Consumption

3.3.5 Air Conditioning

3.3.6 Energy Flow Analysis

3.3.7 Energy Costs

3.3.8 CO2 Emissions

3.3.9 Best Practice Examples

3.4 Benchmark Comparison

3.5 Energy Saving Measures

3.5.1 Order of Measures

3.5.2 Avoiding unnecessary Energy Consumption

3.5.3 Optimizing the Energy Infrastructure

3.5.4 Energy Recovery

3.5.5 Investment in efficient and renewable Technology Solutions

3.6 Catalogue of Measures

4 Perspectives for efficient and renewable Technology Solutions

4.1 Overview and Technology Requirements

4.2 High System Efficiency with Heat Pumps

4.2.1 Heat Pumps and Operation Conditions in Indonesia

4.2.2 Exemplary Calculation of Profitability

4.2.3 Combination of Heat Pump and Chiller System

4.3 Suitable Renewable Energy Solutions

4.3.1 Overview on Renewable Energy Policy in Indonesia

4.3.2 Irradiation

4.3.3 Solar Thermal Water Heating

4.3.4 Further Application Fields for Solar Energy

4.3.5 Photovoltaics

4.3.6 Energetic Use of Organic Waste

4.3.7 Chances and Barriers of Renewable Energy Use

5 Conclusion and Recommendations for Action

Research Objectives and Focus Areas

The primary objective of this thesis is to provide a profound assessment of energy consumption practices within Indonesian resort hotels to develop technical improvement measures. The research addresses the challenge of rising energy costs and the growing demand for sustainable tourism by investigating current wasteful processes and proposing energy-efficient, renewable alternatives tailored to local Indonesian conditions.

• Development of a catalogue of practical energy-saving measures for engineers and decision makers.
• Assessment of the profitability of efficient and renewable technology solutions such as heat pumps and solar thermal systems.
• Identification of renewable energy potential and energy recovery approaches in hotel operations.
• Benchmarking of hotel energy performance to provide actionable guidance for industry stakeholders.

Excerpt from the Book

Summary of Chapters

1 Foundations: Provides an overview of the Indonesian energy sector, tourism industry, and local climatic conditions influencing energy demand in hotel buildings.

2 Research Method: Details the application of the German industry guideline VDI 3922 for conducting energy consultations, data processing, and economic evaluation concepts.

3 Findings of the Energy Consultations: Analyzes the gathered data from seven inspected hotels, including energy flows, costs, and current best practice examples for energy efficiency.

4 Perspectives for efficient and renewable Technology Solutions: Evaluates the profitability and technical feasibility of heat pumps, solar thermal systems, photovoltaics, and biogas for Indonesian resort hotels.

5 Conclusion and Recommendations for Action: Summarizes the key findings and provides concrete recommendations for decision makers and hotel associations to improve energy performance.

Keywords

Energy Consumption, Indonesia, Resort Hotels, Energy Efficiency, Renewables, Heat Pumps, Solar Thermal, Energy Consulting, VDI 3922, Profitability Analysis, Energy Saving Measures, Sustainable Tourism, Waste Heat Recovery, Benchmarking, Renewable Energy Policy

Frequently Asked Questions

What is the core focus of this research?

The research focuses on analyzing energy consumption practices in Indonesian resort hotels, identifying wasteful processes, and proposing technically and economically viable improvements to increase energy efficiency.

What are the primary themes covered in the study?

The study covers energy infrastructure, climate-specific energy demand, economic evaluation methods for energy investments, benchmarking, and the potential for renewable energy integration such as solar thermal and heat pumps.

What is the main objective of this Master Thesis?

The main objective is to provide a guide for hotel decision makers to improve energy performance and cost-effectiveness through a catalogue of actionable measures and investment assessments.

Which scientific methodology is applied?

The research follows the German industry guideline VDI 3922, conducting systematic energy consultations involving questionnaires, site inspections, and employee interviews to generate reliable data.

What topics are discussed in the main part of the report?

The main part covers the energy situation of the inspected hotels, energy flow analysis, benchmarking against international standards, and a detailed assessment of energy-saving and renewable technology solutions.

Which keywords best characterize this work?

The work is characterized by terms like Energy Efficiency, Indonesian Resort Hotels, Heat Pumps, Solar Thermal Systems, Energy Consulting, and Sustainability.

How does the climate in Indonesia influence the findings?

The tropical climate results in a year-round demand for air conditioning, making cooling and waste heat recovery from chiller systems a central theme for improving energy efficiency.

Why are heat pumps considered highly attractive for these hotels?

Heat pumps are highly efficient at lifting waste heat for water heating purposes, and in the Indonesian context, they offer a very short static payback period compared to traditional diesel-fired boilers.

What role does the "laundry process" play in the energy balance?

The laundry process is an energy-intensive department. The research suggests that implementing laundry saving programs can significantly reduce the overall hotel energy demand.