Essays about: "Solar fraction"

Showing result 1 - 5 of 27 essays containing the words Solar fraction.

  1. 1. Efficiency in Swedish Power Grids : A Two-Stage Double Bootstrap DEA Approach for Estimating the Effects from Environmental Variables

    University essay from Umeå universitet/Nationalekonomi

    Author : Martin Bergqvist; [2018]
    Keywords : ;

    Abstract : This paper uses a two-stage Data Envelopment Analysis approach to model the technical efficiency among the ~150 local electricity grids in Sweden. The analysis sets out to capture their heterogeneous environment and firm characteristics that might affect their efficiency. READ MORE

  2. 2. Concentrating Collector for Torsång District Heating System

    University essay from Högskolan Dalarna/Energiteknik

    Author : Artem Filatov; [2018]
    Keywords : Concentrating solar collector; Absolicon; Arcon; Heatstore; flat-plate collector; Borlange; Torsang; Sweden; parabolic trough; thermal collector;

    Abstract : In this thesis report for Dalarna University in Borlange and Absolicon company the study of a possibility to add an array of concentrating solar collectors to a Torsång district heating system was done. The whole idea of this work was to make a simulation of this kind of system, trying to get 15-20% of solar fraction, and make an economical evaluation. READ MORE

  3. 3. Comparison of solar thermal and photovoltaic assisted heat pumps for multi-family houses in Sweden

    University essay from KTH/Energiteknik

    Author : Martin Andersson; [2018]
    Keywords : Solar Thermal; PV; Heat Pump; KPI; Multi-family houses; TRNSYS;

    Abstract : The building sector account for 40 % of the global energy demand, and an increasingly popular way to supply buildings with heat is through the use of heat pumps. Solar thermal (ST) can either be used as a low temperature energy source in the heat pump or to directly supply the building’s heating demand. READ MORE

  4. 4. Predictive Control Strategies for aHeat Pump System with PV and Electrical Storage with Various Boundary Conditions

    University essay from Högskolan Dalarna/Energiteknik

    Author : Fatemeh Johari; [2018]
    Keywords : ;

    Abstract : The idea of nearly zero energy building (nZEB) has been emerged from the global trend toward reduction in fossil fuel consumption and green-house gas emission. In spite of different definitions for nZEB, it is vastly known as a grid connected building with highly reduced energy consumption by means of on-site renewable energy production. READ MORE

  5. 5. Potential for Seasonal Electricity Storage in Borehole Thermal Energy Stores with Heat Pumps

    University essay from KTH/Energiteknik

    Author : Elisa Razzetti; [2018]
    Keywords : ;

    Abstract : In Sweden, there is a substantial increase in renewable power generation that affects the elec-tricity market. At the residential, PV diffusion spreads in the last years due to price drop, while use of heat pump is consolidated. READ MORE