Electrification of Industrial Process Heat Production (Techno-Economic Analysis of Molten Salt Storage Systems and Electric Heating)
Authors
Johannessen, Sebastian Bach ; Villum, Frederik Botin Carøe
Term
4. Term
Publication year
2025
Submitted on
2025-05-28
Abstract
Dette speciale undersøger, hvordan elektrificering af industriel procesvarme med smeltsaltlagring (MOSS) og elopvarmning kan skabe fleksibelt elforbrug og dermed afbøde de markedsmæssige udfordringer ved øget produktion fra variable vedvarende energikilder, herunder den såkaldte kannibaliseringseffekt. Med udgangspunkt i Randers Tegls Hammershøj Teglværk gennemføres en techno-økonomisk optimering i energyPRO på tværs af scenarier kombineret med to-dimensionel matrixoptimering og følsomhedsanalyser af el- og gaspriser. Analysen suppleres af kvalitative metoder, herunder litteraturstudie, semistrukturerede interviews med brancheaktører, interessentkortlægning og en organisatorisk/projektledelsesmæssig vurdering. Resultaterne viser, at MOSS i kombination med elopvarmning kan levere højtemperatur-procesvarme, markant reducere naturgasforbruget og samtidig flytte elforbrug til perioder med lave priser, hvilket skaber betydelig fleksibilitet. Den økonomiske levedygtighed er følsom over for især el- og naturgaspriser, og en målrettet organisatorisk indsats med tidlig interessentinddragelse vurderes nødvendig for at realisere løsningerne. En følsomhedsanalyse antyder desuden, at hvis casens resultater generaliseres til den bredere industrielle sektor, kan der potentielt skabes omkring 4,3 TWh/år i fleksibelt elforbrug. Samlet peger studiet på, at teknisk gennemførlighed skal gå hånd i hånd med effektiv projektledelse for at understøtte VE-integration via elektrificering af procesvarme.
This thesis examines how electrifying industrial process heat with molten salt storage systems (MOSS) and electric heating can create flexible electricity demand and thereby ease market challenges from growing shares of variable renewables, notably the cannibalization effect. Using Randers Tegl’s Hammershøj brickworks as a case, the study conducts a techno-economic optimization in energyPRO across scenarios, supported by two-dimensional matrix optimization and sensitivity analyses on electricity and natural gas prices. Quantitative work is complemented by qualitative methods, including a literature review, semi-structured interviews with industry partners, stakeholder mapping, and an organizational/project management assessment. Findings indicate that MOSS combined with electric heating can supply high-temperature process heat, substantially reduce natural gas use, and shift electricity consumption to lower-price periods, creating significant flexibility. Economic viability is strongly influenced by electricity and gas prices, and successful implementation depends on deliberate organizational planning and early stakeholder engagement. A sensitivity analysis further suggests that, if generalized from the case to the broader industrial sector, flexible demand could reach around 4.3 TWh per year. Overall, the study underscores that technical feasibility must be coupled with effective project management to support renewable integration via process heat electrification.
[This abstract was generated with the help of AI]
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