This thesis does a comprehensive examination of scalable technological and economic models for hydrogen refueling stations (HRS), with a particular focus on facilitating the widespread adoption of fuel cell electric vehicles (FCEVs) through sustainable infrastructure. Given the escalating demand for hydrogen in transportation, the analysis considers various supply pathways, including compressed gaseous hydrogen (CGH₂) delivered by truck, pipeline distribution, liquid hydrogen (LH₂) transport and on-site production by renewable energy sources. A modular station architecture designed for a variety of vehicle fleets, including buses, heavy-duty trucks and passenger cars, is supported by each strategy.The proposed station design includes essential components such as storage tanks, compressors, cryogenic pumps, cascade systems and dispensers. The framework is intentionally flexible, enabling incremental expansion in response to increased utilization.Techno-economic modeling reveals notable distinctions among supply strategies in terms of both capital and operational expenditures. Pipeline integration, while requiring high upfront investment, offers the lowest ongoing costs and is therefore advantageous in high-demand, stable environments with possibility for future scaling. In contrast, LH₂ supply can reduce initial infrastructure costs but entails higher operational expenses, primarily due to the energy demands of liquefaction and losses from boil-off. CGH₂ delivery, reliant on frequent truck deliveries and high compression energy, incurs high logistical costs and is most appropriate for smaller, nearby stations. On-site production provides potential independence from supply chains but needs major investment in electrolysis and renewable energy generation infrastructure. Its viability is closely linked to favorable electricity prices and the availability of adequate site area. A support tool created with Excel is used to compare not only the levelized cost of hydrogen (LCOH), capital expenditure (CAPEX), operating expenditure (OPEX) and return on investment (ROI) for every supply option, but also forecasts hydrogen demand between 2025 and 2035.Besides, a ten-year Net Present Value (NPV) analysis for each option using the ROI target as the discount rate and the internal rate of return (IRR) as alternative performance indicators. With investment planning, technical design and demand forecasting, the thesis lays the basis for determination of the most suitable hydrogen supply strategy.