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• Control systems for hybrid solutions based on biomass fueled Stirling engines, solar and wind for rural electrification

  The project is part of a program for solutions to rural electrification in Bolivia. I study the control system for a Hybrid power system based on a wood pellet fueled Stirling engine. This system has to be capable to operate on islanded mode in rough rural conditions. In addition, the system harvest the local energy sources to assure the reliability of the system.

• Renewable Energy Park - RE-Park

  Use of green energy generated by solar and wind power technologies would help contribute to a clean and secure energy future for Sweden compared to conventional fossil energy resources. Along with the EU-directive for renewable energy of July 2009, Sweden declared that its primary national target is at least 50% of its total energy use would be from renewable energy resources by year 2020, and out of that, there would be at least 10% in transport sector. Combining renewable energy with modern energy saving techniques and IT-applications will necessarily lead to significant energy-efficient decisions that would profit the consumer and secure the competitiveness of the Swedish industries. Several studies have estimated the general saving potential to be in the range of 20-40% of the total energy costs in addition to the reduced impact on the environment. The concept of the Renewable Energy Park (RE-Park) will play an increasingly important role in the nation energy portfolio targeting the renewable energy integration in smart city with net-zero energy housing and healthcare facilities. The RE-Park is an assembly of small power-generating modules, energy storage system and energy management protocols in order to improve the operation of the electricity and heat supplying system in both presence and absence of a grid connection facility. The project involves the development of communication protocol over the internet which is ready for smart grid applications to monitor, control and manage the RE-Park for electricity and heat delivery options.

• Towards Sustainable (Fossil-free) Heating System in Small Residential Buildings

  As a growing technology, the number of installed heat pumps in Europe was increased by 60% between 2014 and 2018, and European Heat Pump Association expects a doubling in the heat pump market by 2024. It is therefore a high priority to further increase the share of renewable sources in the heat pump’s configuration to increase the potential of energy savings and to reduce the greenhouse gas emission. The goal of this project is to study the performance of the PVT-assisted GSHP in new- and retrofitted single-family houses.

• Prosumer-Centric Communication for Solar PV Diffusion (completed)

  Numerous environmental threats are motivating the transition to a sustainable energy system. Buildings are a major contributor in that they represent 39% of final energy consumption in Sweden while simultaneously providing a great potential for solar photovoltaics (PV). To adopt PV, building owners must navigate a complex landscape of technology options, suppliers, and economic uncertainties, challenging their decision making process.

• Solar energy and ground source heat pumps for Swedish multi-family housing (completed)

  Ground source heat pumps (GSHP) have a relatively small market share in multi-family houses in part due to the limited land space available for drilling. The rapidly growing market for solar photovoltaics (PV) provides an opportunity for GSHP by acting as a secondary heat source and regenerating the ground via a heat exchanger fixed to the rear of the panel. The hybrid PV/thermal collectors, called PVT, have higher efficiencies than PV only, but also come with a significant additional cost.