Energieffektivisering och underhållsplanering : Ett samarbete mellan två handlingar

Sammanfattning: In Sweden there are a lot of challenges when it comes to making buildings more energy efficient. In the year of 2018, the construction and housing business in Sweden, accounted for a total energy usage of 105 TWh, which is one third of the country’s total energy usage. In connection with today’s global environmental problems, it is important that all countries take the responsibility to minimize their energy usage as much as possible. Since the middle of the 1990’s the United Nations (UN) has been working on creating mutual goals based on each of its members specific conditions. The Kyoto Protocol and the 2030 Agenda are established agreements that have been made to reduce the members of UNs’ energy consumption and help solve the climate crisis. This thesis has been made in collaboration with Fastighetsstudion i Uppsala AB with the supervisors Sven Detterberg, a certified consultant in the field of energy efficiency and Andreas Andersson, a consultant in the field of maintenance planning. They have noticed that the energy mapping plan and the maintenance plan are made by two different contractors, even though they have a lot of their investment basis in common. A maintenance plan is something a property must have according to law, and the costs to maintain the property are a yearly expenditure that has been considered by the property manager. But when it comes to investing in making the building more energy efficient it can get very costly, and the money to these investments is something that is not accounted for in the yearly expenditure. Many property managers do not go through with investing in recommended energy efficiencies, because they cannot afford it, as it can take decades before the reduced cost in energy consumption pays for the investment by itself. The aim of this study is to synergize the energy mapping plan and the maintenance plan to see how much of the initial cost of the energy efficiency investments can be saved by combining it with planned maintenance costs. A tenant-owned association with four property buildings has been studied in this thesis. The properties have an existing energy mapping plan made in 2019 by Sven Detterberg, and a maintenance plan made in 2016 by Riksbyggen AB. Life cycle costs have been calculated by synergizing the planned maintenance and different energy efficiencies suggested in the energy mapping plan. The goal is to guide the tenant-owned associations on how the plans can be synergized, thus making the suggested energy efficiencies more affordable. This will in the long run help the tenant-owned association by increasing the value of the property, improve its economy and reduce its CO2-emissions. The case studied in this thesis achieved positive results. After combining the cost of the suggested energy efficiencies with the relevant planned maintenance costs it was concluded that all 5 suggestions would be profitable within less than 15 years and four of them in less than 10 years. Before combining the two plans, four of the suggestions would not be profitable within a 15-year period.