Sökning: "PPA"

Visar resultat 1 - 5 av 39 uppsatser innehållade ordet PPA.

  1. 1. Reprocessing and Characterization of Polybenzimidazole for High-Temperature Polymer Electrolyte Membrane Fuel Cells

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Douglas Björkengren; [2023]
    Nyckelord :polymer electrolyte membrane fuel cells; PEMFC; HTPEMFC; polymer technology; polymer characterization; reprocessing; recycling; polybenzimidazole; PBI; Technology and Engineering;

    Sammanfattning : A reprocessing method of poly(2,2’-(m-phenylene)-5,5’-bibenzimidazole) (PBI) membranes recovered from the production line of High-Temperature Polymer Electrolyte Membrane Fuel Cells (HT-PEMFC) at Blue World Technologies (BWT) has been developed in order to reduce material loss in the production. Redissolution of scrap PBI membranes in poly(phosphoric acid) (PPA) and phosphoric acid (PA) was successful and the subsequent washing procedure produced PBI that could be redissolved in N,N-dimethyl acetamide (DMAc) and suitable for solution casting of new membranes. LÄS MER

  3. 2. What is the feasibility of using Power Purchase Agreements as a green electricity sourcing method for a large industrial company? : A Case Study

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Oskar Andersson; Fredrik Lindblad; [2023]
    Nyckelord :Power Purchase Agreements; Sourcing; Industrial Company; Green Electricity; Renewable Energy; PPA; Power Purchase Agreement; Uppköp; Industriellt bolag; Grön elektricitet; Förnyelsebar energi; PPA;

    Sammanfattning : With the increasing volatility on electricity markets and a growing emphasis on sustainability, renewable electricity has gained significant attention from corporate entities seeking to secure their green energy supply. Among the various methods available for securing green electricity, one method on the rise is Power Purchase Agreements (PPA). LÄS MER

  4. 3. Modeling of an Electrolysis System for Techno-Economic Optimization of Hydrogen Production

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Jürgen Köstlbacher; [2023]
    Nyckelord :Hydrogen; Hydrogen Production; Green Hydrogen; LCOH; Electrolysis; PEM; AEL; MILP; Optimization; Techno-Economic Analysis; Cost Optimization; PPA; vätgas; vätgasproduktion; grön vätgas; LCOH; elektrolys; PEM; AEL; MILP; optimering; tekniskekonomisk analys; kostnadsoptimering; PPA;

    Sammanfattning : In face of climate change, Europe and other global actors are in the process of transitioning to carbon-neutral economies, aiming to phase out of fossil fuels and power industries with renewable energies. Hydrogen is going to play a crucial role in the transition, replacing fossil fuels in hard-to-decarbonize industries and acting as energy carrier and energy storage for renewable electricity. LÄS MER

  5. 4. Framtidens vätgassystem : En fallstudie om vätgasproduktion mot en industriell marknad med el från havsbaserad vindkraft

    Master-uppsats, Linköpings universitet/Energisystem

    Författare :Herman Nedar; Alexander Celsing; [2023]
    Nyckelord :Hydrogen; hydrogen systems; electrolysis; PPA; hydrogen offtake agreement; ancillary services; Vätgas; vätgassystem; elektrolysör; PPA; vätgasturbin; balansmarknad; stödtjänster; havsbaserad vindkraft;

    Sammanfattning : Vätgas producerad från förnybar el har en stor potential att minska utsläppen från flera olika branscher. Detta genom att införa nya innovativa ändamål och även genom storskalig ersättning av vätgas som idagproduceras med fossila bränslen. Men för en storskalig förändring behöver kostnaden för förnybar vätgasproduktionsjunka. LÄS MER

  7. 5. Impact of offtake mechanisms on wind turbine selection and design in North and Central Europe

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Gesa Reiter; [2023]
    Nyckelord :Wind energy; offtake mechanisms; wind turbine configuration and design; rated power; capacity factor; Renewable Energy Sources Act; EEG; PPA; merchant; profitability; NPV; IRR; Vindkraft; upphandlingsmekanismer; vindturbiners konfiguration och utformning; nominell effekt; kapacitetsfaktor; lagen om förnybara energikällor; EEG; energiköpsavtal; handelsprissättning; lönsamhet; NPV; IRR;

    Sammanfattning : Wind power has become a major supplier of electricity in the European market in the last years. In 2020, 13% of electricity generated on the European continent was wind energy (onshore and offshore) and these shares are projected to increase in the next years due to reasons such as climate change and the energy security aspect. LÄS MER