Production of electric energy is continuously affected by many factors. Therefore, tools for predicting the future production are needed. In turn, the production affects the electric energy price, which is set on electric energy exchanges. This thesis is intended to find out if the software SDDP can be used for hydrothermal power production simulations in the Nord pool area. By building a simplified model of the electric energy production in Sweden with a focus on hydro, thermal and wind power, the intention is to see how the model is affected by different conditions. The investigated conditions are several; higher and lower water inflows to the hydro power reservoirs; different amounts of installed wind power production; different price levels of emission allowances for CO2. By using the simulation software SDDP, more wind power was seen to lower the electric energy prices, as well as reduce the need of transmission of power from the northern to the southern parts of Sweden. In the simulation, Sweden was divided into four areas, connected where the main bottlenecks in the power grid are located. Water inflows to the reservoirs are crucial in the model. Actual inflow data can be bought from SMHI. However, due to the limited thesis budget, estimations were constructed instead. The estimations were difficult to make and turned out to be too high. Consequently, no reliable evaluation of the SDDP software could be done using this data.

The Rural Energy Enterprise Development (REED) initiative provides assistance to energy-related enterprises to prepare them for growth and to make eventual investments by mainstream financial partners less risky. This study assesses the non-financial returns of a number of REED-type enterprises and provides guidance for the selection and ongoing evaluation of these enterprises within the context of development interventions. This study concludes that desired development outcomes should provide the basis for programme objectives against which non-financial returns can be measured. However, qualitative information is also necessary, as the context within which an enterprise operates largely defines the importance of these returns. Further work to improve the understanding of this context is necessary prior to the development of a formalised monitoring programme. Limitations of the assessment process should be recorded and addressed through the ongoing review of the programme, other monitoring efforts and further research.

The Rural Energy Enterprise Development (REED) initiative provides assistance to energy-related enterprises to prepare them for growth and to make eventual investments by mainstream financial partners less risky. This study assesses the non-financial returns of a number of REED-type enterprises and provides guidance for the selection and ongoing evaluation of these enterprises within the context of development interventions. This study concludes that desired development outcomes should provide the basis for programme objectives against which non-financial returns can be measured. However, qualitative information is also necessary, as the context within which an enterprise operates largely defines the importance of these returns. Further work to improve the understanding of this context is necessary prior to the development of a formalised monitoring programme. Limitations of the assessment process should be recorded and addressed through the ongoing review of the programme, other monitoring efforts and further research.

Orientador: Professor Dr. João Manoel Losada Moreira / Esta pesquisa tem como objetivo fundamental contribuir para a supressão dos acidentes de trabalho fatais na cadeia produtiva de energia elétrica discutindo o problema em três frentes: a) estender o escopo dos bancos de dados de acidentes de trabalho fatais para toda a cadeia produtiva de energia elétrica incluindo etapas de empresas terceiras; b) incluir nos bancos de dados sobre acidentes de trabalho fatais informações que permitam avaliar as condições em que ocorreram os acidentes e formular soluções para evitá-los no futuro; c) monitorar e quantificar por meio de redes Bayesianas o nível da cultura de segurança das empresas da cadeia de energia elétrica admitindo-se uma correlação inversa entre o nível de cultura de segurança e o número de acidentes fatais nessas empresas. O setor de energia elétrica é normalmente representado pelas etapas geração, transmissão e distribuição de eletricidade. Contudo o setor elétrico, considerando toda sua cadeia produtiva é muito maior e foram identificadas 15 etapas desde a prospecção de energia primária até o descomissionamento das instalações após sua vida útil. Em relação aos bancos de dados de acidentes de trabalho, no Brasil há três bancos de dados que cobrem apenas as etapas de geração, transmissão e distribuição de energia elétrica. Foi encontrado que eles não apresentam dados completos que permitam a rastreabilidade das causas raízes dos acidentes e identifiquem as possíveis soluções para evitá-los no futuro. Por exemplo, entre 2009 e 2015 morreram 69 trabalhadores próprios e 380 terceirizados na etapa de distribuição sem maiores detalhes sobre as condições em que esses acidentes ocorreram. A inclusão das empresas terceiras na contabilidade das estatísticas de acidentes de trabalho pode ser um fator indutor de melhoria nas condições de trabalho de todo o setor de energia. O poder econômico das empresas líderes pode exigir de seus parceiros um comportamento mais adequado quanto à segurança do trabalho e supressão dos acidentes fatais. Foi proposta uma estrutura mínima de banco de dados de acidentes de trabalho no setor elétrico com informações que permitam entre outros objetivos a rastreabilidade e posterior correção dos eventos acidentais. Entre esses itens incluem-se o número de registro do acidente, nome, tipo e área de atuação da empresa e pareceres do sistema de acompanhamento da segurança do trabalho sobre acidente, por exemplo, CIPA, médico do trabalho, sindicato e supervisor técnico. A manutenção de um nível de cultura de segurança em uma empresa é importante para a supressão de acidentes de trabalho. Um modelo de monitoração da cultura de segurança baseado em redes bayesianas com 15 diferentes variáveis foi desenvolvido. Estas variáveis consideram desde o engajamento da alta administração com a segurança até treinamento de trabalhadores na utilização de equipamentos de proteção individual. Este modelo quantitativo conseguiu capturar diferenças de nível de cultura de segurança de 15 diferentes empresas de distribuição de eletricidade e mostrar uma clara correlação inversa com o número de acidentes fatais. / Tese ( doutorado)- Universidade Federal do ABC. Programa de Pós-Graduação em Energia, 2017. / This research aims at contributing to the suppression of fatal work accidents in the electricity sector, discussing the problem on three fronts: a) extend the scope of the fatal work accident data banks to the entire electrical energy production chain including services of third-party companies; b) include in the fatal accidents databases information to assess the conditions under which accidents occurred and formulate solutions to avoid them in the future; c) to monitor and quantify, through Bayesian networks, the level of safety culture of the companies in the electricity sector, assuming an inverse correlation between the level of safety culture and the number of fatal accidents in these companies. The electricity sector is usually represented by the stages of generation, transmission and distribution of electricity. However, the electrical sector, considering its entire production chain, is much larger and 15 stages have been identified from primary energy prospecting to the decommissioning of facilities after their useful life. Regarding work accident databases, in Brazil there are three databases covering only the generation, transmission and distribution stages of the electricity sector. It was found that they do not present complete data to trace the root causes of accidents and identify possible solutions to avoid them in the future. For example, between 2009 and 2015, 69 self-employed workers and 380 outsourced workers died in the distribution stage without further details of the conditions under which these accidents occurred. The inclusion of thirdparty companies in the accounting of work-accident statistics can be a factor in improving the working conditions of the entire energy sector. The economic power of leading companies can demand from their partners better behavior in terms of work safety and suppression of fatal accidents. It was proposed a minimum database structure of work accidents in the electric sector with information that allows, among other objectives, the traceability and subsequent correction of accidental events. These items include the accident record number, name, type and area of work of the company, and opinions of the accident work safety monitoring system, including those from the CIPA, occupational physician, union and technical supervisor. Maintaining a level of safety culture in a company is important for the suppression of occupational accidents. A safety culture monitoring model based on Bayesian networks with 15 different variables was developed. These variables range from senior management engagement with work safety to workers training in the use of personal protective equipment. This quantitative model was able to capture differences in the safety culture level of 15 different electricity distribution companies and show a clear inverse correlation with the number of fatal accidents.

Made available in DSpace on 2015-05-14T13:21:51Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1010298 bytes, checksum: a5a24de3f4abc4b3987d2584b46eea8f (MD5) Previous issue date: 2009-07-27 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / The waste from fruit and vegetables and the discharge of domestic and industrial wastewaters in an unacceptable way cause serious problems for the majority of cities in Brazil and the rest of the world. The residues from fruit and vegetables and domestic and industrial wastewater could be treated jointly by the process of anaerobic digestion resulting in the production of energy and a reduction in negative environmental impacts. The principal objective of this work was to study the kinetics of the process of anaerobic biostabilization of vegetable residual solids (RSV), treated at different concentrations of total solids with the view to optimizing energy production and anaerobic biostabilization. To execute this study a completely mixed, compartmentalized anaerobic reactor comprising three compartments separated by glass plates with unit volumes of 25 litres, was designed, installed and monitored,. The resulting products from anaerobic biostabiliztion in the form of semi-solids were monitored weekly except for pH, total alkalinity and volatile fatty acids which jointly with biogas production were monitored twice weekly during a the total monitoring period of 294 days. The work was divided into two stages. In the first stage a substrate comprising twelve different types of vegetable solid waste with a total solids concentration equal to 75, 4 g/L was used. In the second stage the concentration of total solids applied to compartments C1, C2 and C3 were 40, 22.6 and 23.2 g/L respectively, with the with the level of humidity being adjusted by the addition of domestic sewage. The maximum percentage of methane in the biogas was 61.5% obtained in the first compartment (C1) of the reactor during the second experimental stage. The maximum kinetic constants for bioconversion (k) for COD total and soluble, TKN and sulphate during the first stage were respectively 3.86 x 10-2, 3.01 x 10-2, 4.75 x 10-2 and 2.13 x 10-2d-1. During the second stage of the study the values maximum obtained were 1.28 x 10-2, 1.90 x 10-2, 2.90 x 10-2 and 3.22 x 10-2d-1, for COD total and soluble, TKN and sulphate respectively. / O desperdício de frutas e verduras e o lançamento de águas residuárias domésticas ou industriais de forma inadequada representam sérios problemas para maioria das cidades do Brasil e do mundo. Os resíduos de frutas e verduras e as águas residuárias domésticas e industriais podem ser tratados de forma conjugada pelo processo de digestão anaeróbia, resultando no aproveitamento energético e na redução de impactos ao meio ambiente. O objetivo principal deste trabalho foi o estudo cinético do processo de bioestabilização anaeróbia de resíduos sólidos vegetais (RSV), tratados com diferentes concentrações de sólidos totais, visando o aproveitamento do potencial energético e consequentemente a bioestabilização anaeróbia do material orgânico. Para realização deste trabalho foi projetado, construído, instalado e monitorado um reator anaeróbio compartimentado de mistura completa, contendo três câmaras individuais de reação, construídas com placas de vidro, com volumes unitários de 25 litros. Os produtos resultantes do processo de bioestabilização anaeróbia que se encontravam na forma semi-sólida foram monitorados semanalmente, exceto pH, alcalinidade total e ácidos graxos voláteis que juntamente com o biogás foram monitorados duas vezes por semana; o período total de monitoração foi de 294 dias. O trabalho foi dividido em duas etapas. Na primeira etapa, o substrato constituído por doze diferentes tipos de (RSV) foi digerido a uma concentração de sólidos totais igual a 75,4 g/L. Para realização da segunda etapa, a concentração de sólidos totais aplicada às câmaras C1, C2 e C3 foram de 40; 22,8 e 23,2 g/L respectivamente, haja vista o teor de umidade do substrato preparado ter sido ajustado com adição esgoto doméstico. A porcentagem máxima de metano contido no biogás foi de 61,5%, obtida para primeira câmara de reação, no decorrer da segunda etapa. A produção máxima de biogás foi de 56 litros, também obtida na primeira câmara C1, ao longo da segunda etapa. Os valores máximos das constantes cinéticas de bioconversão (k) obtidos no decorrer da primeira etapa para DQOt, DQOs, NTK e sulfato foram respectivamente 3,86.10-2, 3,01.10-2, 4,75.10-2 e 2,13.10-2d-1. Durante a segunda etapa do trabalho os valores máximos obtidos foram de 1,28.10-2, 1,90.10-2, 2,90.10-2 e 3,22.10-2d-1 para DQOt, DQOs, NTK e sulfato, respectivamente.

Orientador: Prof. Dr. Nelson Studart / Dissertação (mestrado) - Universidade Federal do ABC, Mestrado Nacional Profissional em Ensino de Física - MNPEF, 2017. / Esta dissertação aborda o ensino da produção sustentável de energia elétrica por meio de jogos didáticos. Trata-se um tema de grande relevância para a formação do cidadão, contribuindo para a conscientização da necessidade de combater o aquecimento global. À medida que a população aumenta, o consumo de energia elétrica também e torna-se imperiosa a utilização de fontes primárias de energia limpa. A geração de energia elétrica renovável aproveita os recursos dos ventos, do sol, do mar e dos materiais orgânicos, convertendo-os em energia elétrica. O trabalho foi fundamentado na teoria de aprendizagem baseada em jogos discutida por Wallon, Huizinga e Chateau, apresentado na forma de uma sequência de ensino aplicada aos alunos de Física do 3º ano do Ensino Médio em uma escola pública da cidade de Cotia ¿SP. Como estratégia didática e para fixação de conteúdo, foram aplicados em sala de aula dois jogos pedagógicos: um jogo de tabuleiro tipo trilhas e um jogo de cartas super-trunfo. Os jogos e sua aplicação em sala de aula constituem o produto educacional descrito nessa dissertação. O uso dos jogos despertou o interesse e motivou os alunos para apreender o tema proposto de forma divertida e diferente das aulas tradicionais de Física. / This dissertation addresses the teaching of the sustainable production of electrical energy through didactic games. This issue is of great relevance for the formation of the citizen, contributing to the awareness of the need to combat global warming. As the population grows, so does the consumption of electricity and primary sources of clean energy become imperative. The generation of renewable electric energy takes advantage of the resources of the winds, the sun, the sea and the organic materials converting into electric energy. The work was based on the theory of game-based learning discussed by Wallon, Huizinga and Chateau, presented in the form of a teaching sequence applied to physics students of the 3rd year of a public High School in the city of Cotia -SP. As a didactic strategy for content retention, two pedagogical games were applied in the classroom: a board game and a super-trump card game. The games and their application in the classroom constitute the educational product described in this dissertation. The use of the games aroused interest and motivated the students to apprehend the proposed theme in a fun and different way from the traditional classes of Physics.

Orientadores: Secundino Soares Filho, Mônica de Souza Zambelli / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação / Made available in DSpace on 2018-08-25T07:16:16Z (GMT). No. of bitstreams: 1 Silva_ThayzeD'MartinCostada_M.pdf: 9346773 bytes, checksum: 73c504aef1611f22af50cead8deff7bf (MD5) Previous issue date: 2014 / Resumo: O Princípio do Equivalente Certo (PEC) garante que as abordagens determinística e estocástica são equivalentes na otimização de sistemas dinâmicos estocásticos quando satisfeitas certas condições. É possível que o problema de planejamento da operação energética (POE) se aproxime de satisfazer as condições do PEC, apesar de não atendê-las teoricamente. Assim, o objetivo desta dissertação é analisar a validade do PEC no âmbito da Programação Dinâmica aplicado ao POE de sistemas hidrotérmicos constituídos de um único reservatório e avaliar o impacto da violação de cada condição. As hipóteses do PEC foram analisadas progressivamente por meio da comparação dos resultados dos modelos considerados, desde o ideal que atende teoricamente às condições, até o mais próximo da realidade. Foram observadas diferenças pouco significativas entre as políticas de operação determinística e estocástica, indicando que o modelo de POE se aproxima de atender às condições do PEC. Uma consequência imediata deste estudo seria que a abordagem determinística do problema de POE para sistemas hidrotérmicos com um único reservatório pode ser tão eficaz quanto as abordagens estocásticas / Abstract: Certainty Equivalence Principle (CEP) ensures that deterministic and stochastic approaches are equivalent in stochastic dynamic systems optimization when some assumptions hold. It is possible that Long Term Hydrothermal Scheduling (LTHS) problem is close to attaining CEP¿s assumptions, although it does not attain them theoretically. Thus, the objective of this dissertation is to analyze the validity of CEP in Dynamic Programming framework applied to single reservoir LTHS problem and to evaluate the impacts of each CEP¿s condition violation. The CEP¿s conditions were progressive analyzed by comparison of the considered models results from an ideal case where theoretically assumptions hold until a case study closer to reality. Slight differences were observed between deterministic and stochastic operation policies, indicating that LTHS model is close to attain the CEP¿s conditions. An immediate consequence of this study would be that deterministic approach for the single reservoir LTHS problem can be as effective as stochastic ones / Mestrado / Energia Eletrica / Mestra em Engenharia Elétrica

Le développement de la production d'énergie éolienne nécessite des méthodes précises et bien établies pour l'évaluation de la ressource éolienne, étape essentielle dans la phase avant-projet d'une future ferme. Au cours de ces deux dernières décennies, les modèles d'écoulements linéaires ont été largement utilisés dans l'industrie éolienne pour l'évaluation de la ressource et pour la définition de la disposition des turbines. Cependant, les incertitudes des modèles linéaires dans la prévision de la vitesse du vent sur terrain complexe sont bien connues. Elles conduisent à l'utilisation de modèles CFD, capables de modéliser les écoulements complexes de manière précise autour de caractéristiques géographiques spécifiques. Les modèles méso-échelle peuvent prédire le régime de vent à des résolutions de plusieurs kilomètres mais ne sont pas bien adaptés pour résoudre les échelles spatiales inférieures à quelques centaines de mètres. Les modèles de CFD peuvent capter les détails des écoulements atmosphériques à plus petite échelle, mais nécessitent de documenter précisément les conditions aux limites. Ainsi, le couplage entre un modèle méso-échelle et un modèle CFD doit permettre d'améliorer la modélisation fine de l'écoulement pour les applications dans le domaine de l'énergie éolienne en comparaison avec les approches opérationnelles actuelles. Une campagne de mesure d'un an a été réalisée sur un terrain complexe dans le sud de la France durant la période 2007-2008. Elle a permis de fournir une base de données bien documentée à la fois pour les paramètres d'entrée et les données de validation. La nouvelle méthodologie proposée vise notamment à répondre à deux problématiques: le couplage entre le modèle méso-échelle et le modèle CFD en prenant en compte une forte variation spatiale de la topographie sur les bords du domaine de simulation, et les erreurs de prédiction du modèle méso-échelle. Le travail réalisé ici a consisté à optimiser le calcul du vent sur chaque face d'entrée du modèle CFD à partir des valeurs issues des verticales du modèle de méso-échelle, puis à mettre en œuvre une assimilation de données basée sur la relaxation newtonienne (nudging). La chaîne de modèles considérée ici est composée du modèle de prévision de Météo-France ALADIN et du code de CFD open-source Code_Saturne. Le potentiel éolien est ensuite calculé en utilisant une méthode de clustering, permettant de regrouper les conditions météorologiques similaires et ainsi réduire le nombre de simulations CFD nécessaires pour reproduire un an (ou plus) d'écoulement atmosphérique sur le site considéré. La procédure d'assimilation est réalisée avec des mesures issues d'anémomètre à coupelles ou soniques. Une analyse détaillée des simulations avec imbrication et avec ou sans assimilation de données est d'abord présentée pour les deux directions de vent dominantes, avec en particulier une étude de sensibilité aux paramètres intervenant dans l'imbrication et dans l'assimilation. La dernière partie du travail est consacrée au calcul du potentiel éolien en utilisant une méthode de clustering. La vitesse annuelle moyenne du vent est calculée avec et sans assimilation, puis est comparée avec les mesures non assimilées et les résultats du modèle WAsP. L'amélioration apportée par l'assimilation de données sur la distribution des écarts avec les mesures est ainsi quantifiée pour différentes configurations / The development of wind energy generation requires precise and well-established methods for wind resource assessment, which is the initial step in every wind farm project. During the last two decades linear flow models were widely used in the wind industry for wind resource assessment and micro-siting. But the linear models inaccuracies in predicting the wind speeds in very complex terrain are well known and led to use of CFD, capable of modeling the complex flow in details around specific geographic features. Mesoscale models (NWP) are able to predict the wind regime at resolutions of several kilometers, but are not well suited to resolve the wind speed and turbulence induced by the topography features on the scale of a few hundred meters. CFD has proven successful in capturing flow details at smaller scales, but needs an accurate specification of the inlet conditions. Thus coupling NWP and CFD models is a better modeling approach for wind energy applications. A one-year field measurement campaign carried out in a complex terrain in southern France during 2007-2008 provides a well documented data set both for input and validation data. The proposed new methodology aims to address two problems: the high spatial variation of the topography on the domain lateral boundaries, and the prediction errors of the mesoscale model. It is applied in this work using the open source CFD code Code_Saturne, coupled with the mesoscale forecast model of Météo-France (ALADIN). The improvement is obtained by combining the mesoscale data as inlet condition and field measurement data assimilation into the CFD model. Newtonian relaxation (nudging) data assimilation technique is used to incorporate the measurement data into the CFD simulations. The methodology to reconstruct long term averages uses a clustering process to group the similar meteorological conditions and to reduce the number of CFD simulations needed to reproduce 1 year of atmospheric flow over the site. The assimilation procedure is carried out with either sonic or cup anemometers measurements. First a detailed analysis of the results obtained with the mesoscale-CFD coupling and with or without data assimilation is shown for two main wind directions, including a sensitivity study to the parameters involved in the coupling and in the nudging. The last part of the work is devoted to the estimate of the wind potential using clustering. A comparison of the annual mean wind speed with measurements that do not enter the assimilation process and with the WAsP model is presented. The improvement provided by the data assimilation on the distribution of differences with measurements is shown on the wind speed and direction for different configurations

This thesis deals with operation of the Jasenie hydroelectric power plant, which supplies electricity to Železiarne Podbrezová Inc. This thesis describes actual operation, devices and equipment in all substations. The second chapter briefly describes company’s history and activities of the company. The next chapter mentions an overview of the sources of own electricity production. The fourth chapter in detail deals with actual situation of the hydroelectric power plant operation, describes devices and equipment in all substations. It also outlines what measures should be taken to increase the reliability of electricity supply. Next part deals with replacing insulators on the 22 kV line. Sixth chapter is focused on protection this line by multifunctional protection relay and data transfer from HC Jasenie to the building of power engineering. In the next step is designed a backup transformer with bus control for thermal and dynamic effects of the short-circuit current. The last chapter is focused on surge protection in HC Jasenie as well as in the area of Stary závod substation. The results and benefits of this work are summarized in the conclusion. The attachment contains schemes of substations and overall overview scheme, which are used for better understanding of this problem.

Termen off grid är av stort intresse nuförtiden och tillämpas av många privata ägare såväl som företag. Att vara off grid innebär att kunna hantera energiförsörjningen, avlopp och vatten. Den utmanande aspekten av övergången till off grid är hanteringen av energiförsörjningen. Intresset för ämnet finns för att uppfylla FNs Agenda 2030 och Sveriges klimatplan för år 2040. Båda målen inkluderar en övergång från användningen av fossila bränslen till förnybara energikällor. I detta examensarbete undersöks möjligheten att omvandla en äldre gård från 1900-talet till ett off grid småhus med avseende på energianvändningen. Undersökningen utförs genom att värdera vilka renoveringsåtgärder behövs för att minska energiförluster och begränsa energibehovet, vilka tekniker och förnybara energikällor behöver tillämpas, hur mycket energi behöver framställa lokalt samt hur mycket överskottsenergi måste förvaras för att täcka energibehovet. Undersökningen baseras på en referensbyggnad som ligger i Ljungbyhed. Programmet VIP-Energy används för att ta fram energi- och effektbehovet för byggnaden. Efter de genomförda renoveringsåtgärder som innefattar tilläggsisolering, lufttätning, byte av fönster och dörrar och tillsättning av en uteluftsvärmepump på 17.6 kW har referensbyggnaden ett primärenergital som uppfyller kraven från BBR på 73 kWh/m2Atemp och år och ett Um-värde på0.156 W/m2K. Referensbyggnaden har ett totalt energibehov lika med 53 183 kWh vilket inkluderar 20448 kWh för värme och 32 735 kWh för el. I denna studien konstrueras tre olika fall som undersöks för att täcka energibehovet med hjälp av vindkraft i Fall 1, solkraft i Fall 2 och en kombination av båda i Fall 3. Ett vätelagringssystem väljs för att komplettera de konstruerade off grid systemen för att anpassa energiproduktionen till behoven genom att hantera både korttids- och säsongslagring. I Fall 1 krävs det en energiproduktion på 58 236 kWh av ett vindkraftverk med en vingspann på 16 m där 9 780 kWh behöver lagras i vätgassystemet för att täcka energibehovet. Fall 2 innefattar ett 20 m2 solfångarsystemet för att producera 14 321 kWh som täcker upp till 50% av värmeenergibehovet som inte täcks av värmepumpen. Solcellsystemet ska komplettera resterande energibehov vilket uppnås genom att täcka resten av takytan som resulterar i enproduktion lika med 57 373 kWh där 30 386 kWh ska sparas för att klara energibehovet. I Fall 3 täcks energibehovet med ett 10 m2 solfångarsystem med en värmeenergiproduktion på 7 161kWh, ett vindkraftverk med ett vingspann på 10 m som producerar 22 748 kWh och ett 140 m2 solcellssystem med en produktion på 32 388 kWh. Av denna mängden producerad energin från solcellssystemet behöver 19 779 kWh lagras för senare användning. / The term off grid refers to being disconnected from the electrical grid in addition to self-management of the water and sewer systems. The application of off grid houses contributesto fulfilling UN’s Agenda 2030 as well as Sweden's climate plan for year 2040, by supporting the transition from using fossil fuel to renewable energy sources. A challenging aspect of the off grid application is obtaining the required amounts of energy for heating and electricity. This thesis aims to investigate the possibility of transforming an old farm to an off grid house inregards to its energy consumption. The investigation is carried out by examining the renovation measurements needed, the amount of energy that can be produced by renewable energy sources and how much excess energy needs to be stored for later use. The research is based on a case study of a reference house located in Ljungbyhed. The program VIP-Energy is used to carry out calculations that will aid in obtaining data in regards to energy and effect needs. Three cases are constructed to evaluate the possibility of covering the energy demand by implementing either wind power, solar power or a system that includes a combination of both. A hydrogen storage system is chosen to complement the off grid systems constructed. In the first case a wind turbine with a wingspan of 16 m is required to cover the energy demand. Case number 2 involves a 20 m2 system of solar thermal collectors and a solar cell system that covers the rest of the roof area to supply the house with the energy needed. In Case 3, the energy demand is met by using a 10 m2 solar thermal collector system, wind turbine with a wingspan of 10 m and a 140 m2 solar cell system.