<p>Green power, environment protection and emission reduction are key factors nowadays in the telecom industry. Balancing of these modes while reducing the capital and operational costs are of prime importance.  Cost efficient and reliable supply of electricity for mobile phone base stations must be ensured while expanding the mobile phone network. In this context, solar energy, using sophisticated photovoltaic cell technology, is considered to be playing very important role.</p><p>Currently, companies such as ABI research, Flexenclosure AB, etc believe that the solar powered cellular base stations are capable of transforming the telecom industry into one of the greenest in the world. Hence, lot of research is in progress across the globe to use solar power in telecom industry.</p><p>In this thesis work, the significance of solar power as renewable energy source for cellular base stations is reviewed. Moreover, simulation software called PVSYST4.37 is used not only to obtain an estimate of the cost of generation of solar power for cellular base stations but also to obtain the system parameters such as the number of modules, batteries and inverters needed for designing the solar powered cellular base stations. The simulations were carried out for the Grid-Connected and the Stand-Alone solar power systems by considering the cases of New Delhi, India and Stockholm, Sweden.</p><p>The PVSYST4.37 simulation results shows that the power generation costs for the grid connected solar powered system is less compare to standalone solar powered system both in New Delhi, India as well as in Stockholm, Sweden.</p><p> </p>

Green power, environment protection and emission reduction are key factors nowadays in the telecom industry. Balancing of these modes while reducing the capital and operational costs are of prime importance.  Cost efficient and reliable supply of electricity for mobile phone base stations must be ensured while expanding the mobile phone network. In this context, solar energy, using sophisticated photovoltaic cell technology, is considered to be playing very important role. Currently, companies such as ABI research, Flexenclosure AB, etc believe that the solar powered cellular base stations are capable of transforming the telecom industry into one of the greenest in the world. Hence, lot of research is in progress across the globe to use solar power in telecom industry. In this thesis work, the significance of solar power as renewable energy source for cellular base stations is reviewed. Moreover, simulation software called PVSYST4.37 is used not only to obtain an estimate of the cost of generation of solar power for cellular base stations but also to obtain the system parameters such as the number of modules, batteries and inverters needed for designing the solar powered cellular base stations. The simulations were carried out for the Grid-Connected and the Stand-Alone solar power systems by considering the cases of New Delhi, India and Stockholm, Sweden. The PVSYST4.37 simulation results shows that the power generation costs for the grid connected solar powered system is less compare to standalone solar powered system both in New Delhi, India as well as in Stockholm, Sweden.

The degree project was carried out in collaboration with Halmstad Fastighet AB. Two separate buildings with different uses of energy have been analyzed. The focus was on evaluating near-zero energy houses with solar power plants and associated battery storage to investigate profitability and dimensioning to form the basis for future constructions. Both properties are near-zero energy houses but differ in the use of electrical energy. It is currently unclear how the change in the dimensioning of the solar power plant and the battery storage will affect the profitability of two properties with different uses of energy. The method was quantitative. Simulation models in the Polysun software were created with the properties' reference house. Based on the simulations, profitability calculations were made to describe the difference in profit when changing the dimensioning. The work concludes that the total profitability increases with the size of the solar power plant, regardless of energy use, and battery storage is not profitable without price changes. / Examensarbetet gjordes i samarbete med Halmstad Fastighet AB. Två olika fastigheter med olika elanvändning har analyserats, där fokuset låg på att utvärdera nära-nollenergihus med solkraftsanläggningar och tillhörande batterilager för att undersöka lönsamhet och dimensionering som ska ligga till grund för framtida byggnationer.  Båda fastigheterna är nära-nollenergihus men skiljer sig åt i användning av elenergi. Det är idag oklart hur förändringen av dimensioneringen av solkraftsanläggningen och batterilagret påverkar lönsamheten i två fastigheter med skilda användning av elenergi. Metoden är av kvantitativ karaktär. Simuleringsmodeller i programvaran Polysun skapades med två fastigheter och dess solkraftsanläggningar med tillhörande batterilager som referens.Utifrån simuleringarna gjordes lönsamhetsberäkningar för att beskriva skillnad i vinst vid förändring av dimensionering. Slutsatserna av arbetet är att den totala lönsamheten ökar ju större solkraftsanläggningen är oavsett elenergianvändning och batterilagret är idag inte lönsamt utan prisförändringar.