| Summary: | Under hösten 2020 genomfördes en revidering av energikraven i Boverkets byggregler (BBR29). Denna revidering grundades på EU´s bestämmelser om att alla nationer ska införa regler så att nybyggnation av hus måste ske på ett sätt, som inom EU benämns som nära-nollenergibyggnader. EU har dock inte, på central nivå, definierat vad som menas med nära-nollenergibyggnader utan det har överlåtits till varje nation att bestämma. De svenska energikraven är uppdelade på tre olika delar. Det ena som mäts är ett primärenergital, det andra är installerad eleffekt och den sista faktorn är genomsnittlig värmegenomgångskoefficient. I denna undersökning har småhustillverkare kontaktats för att undersöka om de nya kraven har inneburit att några konstruktioner behövts förändras. Det som kan konstateras är dock att de undersökta småhusen klarar de nya kraven utan konstruktionsförändringar. Kraven har skärpts i omgångar under de senaste tio till femton åren och det visar sig i denna undersökning att småhustillverkarna når de krav som finns idag. Något som dock kan diskuteras är om de nya kraven som Boverket infört kan anses vara tillräckliga för att vi ska nå de globala mål som finns runt hållbar utveckling. === During autumn 2020 there were a revision of the energy requirements for buildings. The requirements in Sweden are written by the National board of housing, building and planning. The revision is based on rules made by EU. The rules imply that all new buildings need to be built like nearly zero-energy buildings. EU have not made a definition of what is meant by nearly zero-energy buildings. This definition is up to each Member state of the EU to decide. In Sweden there are three different requirements that need to be reached. One is the amount energy used for heating the building. The amount energy is corrected by a geographic factor depending on where in Sweden the building is built. The value is then multiplied by a factor depending on the energy carrying and at last the value is divided by the heated area. The other requirement is due to installed electricity power that is allowed for heating and production of warm water. The last one is average heat transfer coefficient, which is a measurement of how much heat energy the building emits through the climate shield. In this survey, different producers of small houses have been contacted to explore if the new requirements have led to new constructions. By doing this examination there can be established that the new requirements can be reached without any changes in the construction. The requirements have become more and more strict during the last ten to fifteen years and it proves in this survey that the producers of small houses meet the requirements without problems. Something that can be discussed though, are if the new requirements that the National board of housing, building and planning has set, can be considered enough to reach the global sustainable development goals. === <p>Betyg 2021-06-04</p>
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