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The installation of solar photovoltaic (solar PV) technology on elementary and secondary schools has been undertaken around the world in an attempt to tie together positive environmental action, innovative environmental education, and potential economic gains. In Ontario, the advent of the Renewable Energy Standard Offer Program and the increased focus on environmental education by the Ontario Ministry of Education has resulted in preliminary interest from some Ontario school boards in installing solar PV technology on schools. However, simply installing the technology on school roof-tops does not guarantee that the potential benefits of a school-based solar PV project will be realized. Drawing from the literatures describing the social acceptance of innovation and technology, the social acceptance of renewable energy innovation and technology, and the social acceptance of educational innovation and technology in schools, this thesis attempts to identify non-technical factors that may impede school-based solar PV project development, and ultimately, attempts to identify factors that help maximize potential benefits. The research was conducted in two distinct phases, with the results from Phase 1 informing the focus and design of Phase 2. Phase 1 consisted of nine key-informant interviews with individuals directly involved in school-based solar PV projects in Canada and the United States, and Phase 2 consisted of a case study in the Halton District School Board (HDSB) and the Halton Catholic District School Board (HCDSB) (Ontario, Canada). Both quantitative and qualitative data were collected in Phase 2 through 30 stakeholder interviews and 50 stakeholder surveys. Respondents in the HDSB and HCDSB generally have a positive perception of solar PV technology, but are concerned to some extent about the cost and economic viability of implementing this kind of project. Five funding models for school-based solar PV projects were evaluated by respondents to determine the effect of project funding models on overall project social acceptance. The results show that the project funding model does affect social acceptance, with 78.1% of respondents reporting that at least one of the five models would cause their support for the project to either increase or decrease. Respondents indicated a strong preference for the government/utility model, while the corporate funding model was shown to be the most controversial. This thesis recommends that a broad-based, inclusive, stakeholder-oriented approach to project development could improve trust and communication between project stakeholders, and thus improve the social acceptance for any of the five funding models. Additionally, with any funding model, teacher and administrative support and social acceptance is particularly important to help maximize the educational component of the project.

The installation of solar photovoltaic (solar PV) technology on elementary and secondary schools has been undertaken around the world in an attempt to tie together positive environmental action, innovative environmental education, and potential economic gains. In Ontario, the advent of the Renewable Energy Standard Offer Program and the increased focus on environmental education by the Ontario Ministry of Education has resulted in preliminary interest from some Ontario school boards in installing solar PV technology on schools. However, simply installing the technology on school roof-tops does not guarantee that the potential benefits of a school-based solar PV project will be realized. Drawing from the literatures describing the social acceptance of innovation and technology, the social acceptance of renewable energy innovation and technology, and the social acceptance of educational innovation and technology in schools, this thesis attempts to identify non-technical factors that may impede school-based solar PV project development, and ultimately, attempts to identify factors that help maximize potential benefits. The research was conducted in two distinct phases, with the results from Phase 1 informing the focus and design of Phase 2. Phase 1 consisted of nine key-informant interviews with individuals directly involved in school-based solar PV projects in Canada and the United States, and Phase 2 consisted of a case study in the Halton District School Board (HDSB) and the Halton Catholic District School Board (HCDSB) (Ontario, Canada). Both quantitative and qualitative data were collected in Phase 2 through 30 stakeholder interviews and 50 stakeholder surveys. Respondents in the HDSB and HCDSB generally have a positive perception of solar PV technology, but are concerned to some extent about the cost and economic viability of implementing this kind of project. Five funding models for school-based solar PV projects were evaluated by respondents to determine the effect of project funding models on overall project social acceptance. The results show that the project funding model does affect social acceptance, with 78.1% of respondents reporting that at least one of the five models would cause their support for the project to either increase or decrease. Respondents indicated a strong preference for the government/utility model, while the corporate funding model was shown to be the most controversial. This thesis recommends that a broad-based, inclusive, stakeholder-oriented approach to project development could improve trust and communication between project stakeholders, and thus improve the social acceptance for any of the five funding models. Additionally, with any funding model, teacher and administrative support and social acceptance is particularly important to help maximize the educational component of the project.

iv ABSTRACT OPTIMIZATION OF METALIZATION IN CRYSTALLINE SILICON SOLAR CELLS Demircioglu, Olgu M. Sc. Department of Micro and Nanotechnology Supervisor : Prof. Dr. Rasit Turan Co-Supervisor : Assist. Prof. Dr. H. Emrah &Uuml / nalan August 2012, 103 pages Production steps of crystalline silicon solar cells include several physical and chemical processes like etching, doping, annealing, nitride coating, metallization and firing of the metal contacts. Among these processes, the metallization plays a crucial role in the energy conversion performance of the cell. The quality of the metal layers used on the back and the front surface of the cell and the quality of the electrical contact they form with the underlying substrate have a detrimental effect on the amount of the power generated by the cell. All aspects of the metal layer, such as electrical resistivity, contact resistance, thickness, height and width of the finger layers need to be optimized very carefully for a successful solar cell operation. In this thesis, metallization steps within the crystalline silicon solar cell production were studied in the laboratories of Center for Solar Energy Research and Application (G&Uuml / NAM). Screen Printing method, which is the most common metallization technique in the industry, was used for the metal layer formation. With the exception of the initial experiments, 6

This paper is the companion paper of Remote Microgrids for Energy Access in Indonesia “Part I: scaling and sustainability challenges and a technology outlook”. This part II investigates the issues of photovoltaic (PV) systems with respect to the planning, design, and operation, and maintenance phases in microgrids in Indonesia. The technology outlooks are also included as PV has an important role in providing electricity in the underdeveloped, isolated, and border areas. The data in this paper are from PV microgrids located in Maluku and North Maluku, which are two provinces where there is barely any grid connection available and thus very dependent on remote microgrids. The data are obtained from interviews with Perusahaan Listrik Negara (PLN) and NZMATES, which are an Indonesian utility company and a program for supporting role for the PV systems in Maluku funded by New Zealand respectively. Common issues with respect to reliability and sustainability are identified based on the provided data. Advanced technologies to increase reliability and sustainability are also presented in this paper as a technology outlook. Among these solutions are online monitoring systems, PV and battery lifetime estimation, load forecasting strategies, and PV inverters technology.

To be able to mitigate the climate change and disasters that will come with it and to ensure economic growth, there is a need for change. A good start is more renewable energy and less harmful emissions. It is known that solar energy is sustainable and made from an endless source, the sun. However, it is not known how much impact the photovoltaic solar panels have through its entire lifecycle, from extraction of raw materials to End of Life management. This study has investigated photovoltaic solar panels' full life cycle to see how sustainable they really are. Including where the biggest opportunities for improvement of environmental, financial and social sustainability within the value chain is found. The results have been obtained by conducting a literature study, interviews with people with expertise of different parts of the value chain and finally calculations have been made to compare and visualize the findings. Two main ways to improve the PV panels’ negative impact in terms of environmental, financial and social sustainability have been established. Firstly, the study suggests the importance of implementing advanced recycling within the value chain. Recycling a high percentage of materials in the PV panel, and reusing the recovered material in production will decrease the energy consumption and harmful emissions significantly, alongside increasing circularity of critical materials and bring both financial and social benefits. Secondly, moving the better part of the production to Europe from China would also decrease the negative impact of the PV panels, especially the environmental and social impact, the study could however not find sufficiently good arguments for financial improvement to move the production to Europe. To be conclusive, this subject would need further studies. / För att kunna lindra klimatförändringar och de medföljande katastroferna och säkerställa den ekonomiska tillväxten finns det ett stort behov av förändring. En bra start är att använda mer förnybar energi och som bidrar till färre skadliga utsläpp. Det är känt att solenergi är hållbart med bränsle från en oändlig källa, solen. Det är emellertid inte känt hur stor påverkan solcellspanelerna har under hela dess livscykel, från utvinning av råvaror till dess panelens liv är över. Denna studie har undersökt solcellspanelernas hela livscykel för att se hur hållbara de egentligen är. Studien har även studerat var de största möjligheterna för förbättring av miljömässig, finansiell och social hållbarhet inom värdekedjan finns. Resultaten har erhållits genom att genomföra en litteraturstudie, intervjuer av personer med expertis inom olika delar av värdekedjan och slutligen har beräkningar gjorts för att jämföra och visualisera resultaten. Två huvudsakliga sätt att förbättra solpanelernas negativa påverkan när det gäller miljömässig, ekonomisk och social hållbarhet har identifierats. För det första föreslår studien vikten av att implementera avancerad återvinning inom värdekedjan. Återvinning av en hög andel material i solcellspanelen och återanvändning av det återvunna materialet i produktionen kommer att minska energiförbrukningen och skadliga utsläpp avsevärt samt förbättra cirkuläriteten av kritiska material och medföra både ekonomiska och sociala fördelar. För det andra skulle förflyttning av den större delen av produktionen till Europa från Kina också minska de negativa effekterna av solcellspaneler, särskilt de miljömässiga och sociala effekterna, studien kunde dock inte hitta tillräckligt med goda argument för att en förflyttning av produktionen till Europa skulle leda till en ekonomisk förbättring. För att detta ska vara avgörande skulle detta ämne behöva ytterligare studier.

India’s geographical location renders it with ample solar-energy potential ranging from 4-7 kWh/m2 daily and 2,300–3,200 sunshine hours annually. The diverse nature of human settlements (scattered low-rise to dense high-rise) in India is one of the unexplored avenues of harnessing solar energy through electricity generation using photovoltaic (PV) technology. Solar energy is a promising alternative that carries adequate potential to support the growing energy demands of India’s burgeoning population. A previous study estimates, by the year 2070, with 425 million households (of which utilizing only 20 %), about 90 TWh of electrical energy can be generated utilizing solar energy. PV is viable for onsite distributed (decentralized) power generation offering advantages of size and scale variability, modularity, relatively low maintenance and integration into buildings (no additional demand land). The application of solar PV technology as the building envelope viz., walls, façade, fenestration, roof and skylights is termed Building Integrated Photovoltaic (BIPV). Apart from generating electricity, PV has to also function as a building envelope, which makes BIPV systems unique. Even with a gradual rise in the number of BIPV installations across the world over the years, a common consensus on their evaluation has not yet been developed. Unlike PV in a ground mounted system, its application in buildings as an envelope has huge implications on both PV and building performance. The functions of PV as a building material translates well beyond electricity generation alone and would also have to look into various aspects like the thermal comfort, weather proofing, structural rigidity, natural lighting, thermal insulation, shading, noise protection safety and aesthetics. To integrate PV into a residential building successfully serving the purpose (given the low energy densities of PV and initial cost), would also mean considering factors like the buildings electricity requirement and economic viability. As many studies have revealed, 40% of electricity consumed in a building is utilized for maintaining indoor thermal comfort. Tropical regions, such as India, are generally characterized by high temperatures and humidity attributed to good sunlight, therefore, the externality considered for this study has been the impact of BIPV on the thermal comfort. Passive designs need to regulate the buildings solar exposure by integrating a combination of appropriate thermal massing, material selection, space orientation and natural ventilation. On the other hand, PV design primarily aims to maximize solar to generate maximum energy. The design requirements for climate-responsive building design may thus infringe upon those required for optimal PV performance. Regulating indoor thermal comfort in tropical regions poses a particular challenge under such conditions, as the indoor temperature is likely to be sensitive to external temperature variations. In addition, given current performance efficiencies for various PVs, high initial cost and space requirement, it is also crucial to ascertain PV’s ability to efficiently support buildings energy requirement. Thus, BIPV would require addressing, concurrently, design requirements for energy-efficient building performance, effective PV integration, and societal feasibility. A real time roof integrated BIPV system (5.25 kW) installed at the Center for Sustainable Technologies at the Indian Institute of Science, Bangalore has been studied for its PV and building thermal performance. The study aims at understanding a BIPV system (based on crystalline silicon) from the technical (climate-responsiveness and PV performance), social (energy requirement and energy efficiency) and economical (costs and benefits) grounds and identifies relevant factors to quantify performance of any BIPV system. A methodology for BIPV evaluation has been proposed (Integrability Methodology), especially for urban localities, which can also be adopted for various PV configurations, building typologies and climatic zones. In the process, a novel parameter (thermal comfort energy) to evaluate the thermal performance of naturally ventilated buildings combining climate-responsiveness and thermal comfort aspects has also been developed. An Integrability Index has also been devised, integrating various building performance factors, to evaluate and compare the performance of BIPV structures. The methodology has been applied to the 5.25 kW BIPV system and the index has been computed to be 0.17 (on a scale of 0 – 1). An insulated BIPV system (building applied photovoltaic system) has been found to be favorable for the climate of Bangalore than BIPV. BIPV systems have also been compared across three different climates (Bangalore, Shillong and Delhi) and given the consideration of the same system for comparison, the system in Delhi is predicted to have a higher Integrability than the other two systems. The current research work is a maiden effort, that aims at developing and testing a framework to evaluate BIPV systems comprising technical, social and economic factors.