In the context of electricity, arbitrage trading involves taking advantage of existing price variations within electricity markets. The report conducted financial modelling for energy storage systems and demand-side load management for electricity arbitrage trading in single-family homes. The analysis included two different energy storage systems: a thermal energy storage system and a battery energy storage system. Additionally, electricity spot cost reduction was compared between electricity arbitrage trading and traditional energy efficiency measures such as air-to-water and ground-source heat pumps. The report's findings indicated that air-to-water and ground-source heat pumps emerged as the most economically viable choices for reducing electricity spot costs, irrespective of the studied electricity price area. The thermal energy storage system, employing an insulated hot water storage tank, ranked the third most efficient in achieving cost savings. The battery energy storage system, represented by a lithium home battery system, demonstrated the lowest rate of cost saving among the analyzed energy efficiency measures.  The financial modelling highlighted the economic potential for thermal energy storage systems, particularly in southern Sweden's electricity price areas SE3 and SE4. On the other hand, no economically viable options for battery energy storage systems were identified, regardless of the studied electricity price area. As a results, the report recommends utilizing thermal energy storage systems and implementing demand-side load management as strategies to hedge against future electricity price volatility.

Sammanfattning Syftet med studien, som grundar sig i en kvalitativ ansats, är att genom semistrukturerade intervjuer få uppfattning om vilka positiva och negativa aspekter det finns med privatisering av barn- och ungdomsvård. Dessutom grundar sig studien på att upptäcka socialarbetare upplevda skillnader i uppföljningsarbetet hos kommunalt utredda familjehem respektive konsulentstödda familjehem. Utifrån tidigare forskning framgår det att barn och vuxna är väldigt beroende av kontinuitet gällande att träffa samma socialarbetare för att uppleva situationen på ett bra sätt. Stor omsättning av socialarbetare leder till att upplevelsen med dessa inte blir lika bra och att förtroendet för socialarbetaren sjunker.   Genom tematisk analys framkom det att uppföljningen av placerade barn skiljer sig beroende på om barnet är placerat i kommunal eller privat verksamhet. I studien framkommer det att socialtjänsten besitter det yttersta ansvaret för det placerade barnet men saknar insyn i de privata aktörernas arbete. Det finns inte heller någon granskning från IVO gällande de privata verksamheterna. Detta skapar en osäkerhet om barnets behov tillgodoses på rätt sätt. / Abstract The purpose of this study is to get an idea through a qualitative method based in semi-structured interviews of which positive and negative aspects exist with the privatization of child and youth care. In addition, the study is based on discovering social workers perceived differences in the follow-up work of municipally investigated family homes and consultant-supported family homes. Previous research conclude that children and adults are very dependent on continuity in meeting the same social worker to experience the situation in a good way. A high turnover of social workers generates a bad experience and a lack of trust between the social worker and client.  Through thematic analysis, it emerged that the follow-up of placed children differs depending on whether the child is placed in a municipal or private operation. In the study it appears that the social service has the ultimate responsibility for the placed child but lacks insight into the work of the private operations. This creates uncertainty as to whether the child’s needs are being met in the right way.

This diploma thesis focuses on the valuation of family homes in Krnov in a manner determined by the decree and by the market value. Using variations of these two prices of family homes, a simplified mathematical model for determining market values of family homes in the area is created.