Modelling a decarbonized multi-energy industry facility as a flexibility service provider under price uncertainty

doctoral thesis

• Title (croatian): Modeliranje dekarboniziranoga višeenergijskoga industrijskog postrojenja kao pružatelja usluga fleksibilnosti u uvjetima cjenovne nesigurnosti
• Author: Matija Kostelac
• Mentor: Tomislav Capuder (mentor)
• Committee member: Hrvoje Pandžić (predsjednik povjerenstva)
• Committee member: Marko Delimar (član povjerenstva)
• Committee member: Danijel Topić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2024-02-02, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering
• Universal decimal classification (UDC): 621.3 - Electrical engineering

Abstract

Industrial facilities are a unique type of end-user. They are large centralised consumers whose production costs are largely dependent on energy procurement. Lowering their production costs can lead to a more competitive product. They have high flexibility potential since they are easier to control and automate than other end-users. They can also individually participate in the energy markets. The main concepts, that the industrial facility will employ to achieve its flexibility potential, are demand response and integrating and shifting between multiple energy vectors. Industrial facilities are responsible for emitting their local emissions, meaning that they have to buy them on the emissions market adding additional cost to their production process. In order to reduce their local emissions and carbon footprint as a whole this thesis proposes switching from traditional fossil fuels to hydrogen technologies. They provide even more flexibility to the system since they can use excess electricity to produce hydrogen, or they can consume hydrogen to produce electricity and heat. Hydrogen can also be stored for future use. With a combination of hydrogen technologies and renewable energy sources, the industrial facility managed to almost completely reduce its carbon footprint while completely removing local emissions. From an economical point of view current hydrogen technologies, on average, are still not up to par with traditional. Future hydrogen technologies, reported in the literature, showcased better results depending on future price trends. The most promising benefit of the hydrogen-based system was that it was not very sensitive to market price changes since it could have high autonomy from the rest of the power system.

Abstract (croatian)

Industrijski potrošači su jako bitni sudionici elektroenergetskog sustava, čineći oko 25\% ukupne potrošnje primarne energije u Europskoj uniji. Oni su centralizirani energetski intenzivni potrošači koji mogu djelovati samostalno bez potrebe za agregacijom s drugim potrošačima. Također, imaju visoku razinu kontrole i automatizacije svojih podsustava i pomoćnih uređaja. Zbog toga imaju puno veći potencijal fleksibilnosti. Troškovi njihove proizvodnje uvelike ovise o cijeni energenata, te se njihovim smanjenjem postiže veća konkurentnost proizvoda. Glavni koncepti koje će industrijsko postrojenje koristiti za postizanje svog potencijala fleksibilnosti su odziv potrošnje te kroz integriranje sustava više energetskih vektora. U radu će se prikazati mogućnosti industrijskih potrošača u tranziciji prema zelenoj energiji i njihova integracija na veleprodajna energetska tržišta. U radu je istraženo njihovo natjecanje na dan unaprijed tržištu električne energije, program odziva potrošnje i suradnja više energijskih vektora. Cjenovna nesigurnost tržišta je također uzeta u obzir kako bi se dobili što realniji uvjeti rada postrojenja. Također je predložena zamjena prirodnog plina s vodikom i integracija obnovljivih izvora energije u svrhu smanjile emisije stakleničkih plinova koje ovakvo postrojenje proizvodi. Napravljena je analiza osjetljivosti s obzirom na potencijalna kretanja cijena električne energije i plina kako bi se usporedilo klasično postrojenje s postrojenjem baziranim na vodiku.

• Keywords: industry facility; electricity market; demand-response; emission reduction; hydrogen technologies
• Keywords (croatian): industrijsko postrojenje; tržište električne energije; odziv potrošnje; smanjenje emisija; vodikove tehnologije
• Language: english
• URN:NBN: urn:nbn:hr:168:735160
• Promotion: 2024
• Study programme: Title: Doctoral study programme "Electrical Engineering and Computing"; Study programme type: university; Study level: postgraduate; Academic / professional title: doktor/doktorica znanosti, po-dručje tehničkih znanosti (doktor/doktorica znanosti, po-dručje tehničkih znanosti)
• Type of resource: Text
• Extent: x, 98 str. : graf.prikazi
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-02-27 13:25:30