Innemiljøet på Marienlyst skole i Drammen, Norges første "passivhus-skole", er evaluert gjennom intervju og spørreskjema med brukere. Det er utført tre intervjurunder i løpet av 2011 med totalt 23 informanter; lærere, elever og representanter fra driftspersonalet. I tillegg er det utført en spørreskjemaundersøkelse om inneklimaet i slutten av 2011, for alle elever og ansatte.

Building integrated photovoltaics (BIPVs) are photovoltaic (PV) modules integrated into the building envelope and hence also replacing traditional parts of the building envelope, e.g. the roofing. In this context, the BIPVs integration with the building envelope limits the costs by serving dual purposes. BIPVs have a great advantage compared to non-integrated systems because there is neither need for allocation of land nor stand-alone PV systems. This study seeks to outline various commercially available approaches to BIPVs and thus provides a state-of-the-art review. In addition, possible future research opportunities are explored.

The various categories of BIPVs may be divided into photovoltaic foils, photovoltaic tiles, photovoltaic modules and solar cell glazings. Silicon materials are the most commonly used, and a distinction is made between wafer-based technologies and thin-film technologies. In addition, various non-silicon materials are available. The main options for building integration of PV cells are on sloped roofs, flat roofs and facades. The evaluation of the different BIPV products involves, among others, properties such as solar cell efficiency, open circuit voltage, short circuit current, maximum effect and fill factor.

It is expected that the BIPV systems will improve in the years to come, regarding both device and manufacturing efficiency. The future seems very promising in the BIPV industry, both concerning new technologies, different solutions and the variety of BIPV options.

Abstract

The recent building practices have shown that aerogel glazings can be used as a multifunctional building envelope component for different purposes. Nevertheless, the distinctive physical properties and energy performance of aerogel glazings suggest that building integration of aerogel glazings may create architectural challenges, aesthetic problems, as well as concerns on their durability and environmental impact, thus highlighting the importance of developing guidelines to regulate the use of aerogel glazings in the building sector. This study discusses various approaches for the building integration of aerogel glazings by presenting a number of successful examples; the advantages of integration are quantified and suggestions are given to address the possible challenges.

Summary

This paper provides a summary of main content and conclusions from a report on evaluation of existing potential and scenario studies concerning renovation of residential buildings. In addition to literature studies there were conducted own calculations adapted from the most important Norwegian scenario model. Also studies addressing design of regulatory requirements for measures with existing buildings were reviewed. The results were discussed in expert workshops. The technical potential for energy upgrade seems to be under- rather than overestimated. On the other hand, the paper substantiates that the renovation rate is lower than assumed in the scenarios, and illustrates that rules and requirements of laws and regulations will not ensure energy ambitious upgrade to a sufficient degree. As a consequence, other motivations and policy instruments like economic support and measures to influence sociocultural drivers are more important and essential to achieve ambitious goals. There are different types of motivation for energy efficiency and upgrading among the population. For most people, a combination of these may be important: Comfort and indoor environment, general requirements for upgrade (energy efficiency side effect), energy/financial gain, moral, image/group identity. Means to achieve ambitious upgrading in the housing sector must answer many different types of motivators. Therefore we need to have a wide range of instruments to achieve the climate goals.