Sökning: "variable renewable energy"

Visar resultat 1 - 5 av 50 avhandlingar innehållade orden variable renewable energy.

  1. 1. Sustainability of rural energy access in developing countries

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Brijesh Mainali; KTH.; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy Access; Rural electrification; Rural energy; Household; Renewable energy; Off-grid; Mini-grid; Grid; Pathways; Fuel choice; Indicator; Sustainability index; Energiteknik; Energy Technology;

    Sammanfattning : The importance of access to modern energy has been well understood by governments and donor agencies in many developing countries, and significant effort has been made in recent years to address energy access challenges. However, despite these efforts, the International Energy Agency (IEA) has predicted that the energy access problem will remain unresolved by 2030. LÄS MER

  2. 2. Electrification of Road Transportation - Implications for the Electricity System

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Maria Taljegård; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; highway E39; CO2 emissions; electric vehicle; electric road systems; energy system modelling; variable renewable electricity;

    Sammanfattning : It is incumbent upon the transport sector to reduce its CO2 emissions by replacing fossil fuels with low-carbon alternatives. Suggested strategies include electrification of the road transport sector through the use of electric vehicles (EVs) with static charging, electric road systems (ERS), and the use of electricity to produce fuels. LÄS MER

  3. 3. Techno-economic analysis and optimization of electrochemical energy storage solutions

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Guido Lorenzi; KTH.; [2018]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Energy Storage; Battery Energy Storage; Lithium-ion Batteries; Vanadium Flow Batteries; Power-to-Gas; Electrolysis; Biogas Upgrading; Armazenamento de Energia Elétrica; Armazenamento de Energia em Baterias; Baterias de Iões de Lítio; Baterias de Fluxo de Vanádio; Power-to-Gas; Eletrólise; Upgrading de Biogás; Elenergilagring; batterilagring; litiumjonbatterier; vanadinflödesbatterier; elkraft-till-gas; elektrolys; biogasuppgradering; Energiteknik; Energy Technology;

    Sammanfattning : The need to integrate the rapidly growing share of variable renewable energy sources in the power sector requires solutions that are capable of mitigating the intermittent nature of these sources. They are expected to constitute the backbone of the electricity generation system in the coming years in order to reach ambitious goals in terms of energy security and reduction of environmental impact. LÄS MER

  4. 4. Technical and Economic Conditions for Efficient Implementation of CO2 Capture - process design and operational strategies for power generation and process industries

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Stefanìa Òsk Gardarsdòttir; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Post-combustion; CCS; chemical absorption; dynamic modeling; industrial sources; CO2 capture and storage; variable electricity generation;

    Sammanfattning : This thesis investigates the operational parameters of fossil-based power generation and industrial processes in future energy systems that have stringent constraints on CO2 emissions, and, consequently, large shares of renewable energy. CO2 capture and storage, which is the focus of this work, is required for power and industrial processes that emit CO2. LÄS MER

  5. 5. The roles of transmission and distribution networks in integrating variable renewable electricity generation

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Joel Goop; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electricity generation; demand-side management; energy systems modelling; power systems; variable renewables;

    Sammanfattning : Emission reduction targets, together with other factors, such as security of supply, are driving the expansion of variable renewable energy sources for electricity generation, mainly solar and wind power. Trading across the transmission grid is an important measure to handle the increased variability and to balance supply with demand. LÄS MER