Geospatial Suitability Assessment and Techno-Economic Optimization for Green Hydrogen Production in Coastal Bangladesh

This paper presents a two-stage geospatial and
techno-economic framework for identifying and sizing a renewable
hydrogen production system in Bangladesh. In the
first stage, a Geographic Information System (GIS)-based multicriteria
decision analysis was carried out for Chittagong Division
using seven spatial criteria, namely solar irradiance, wind speed,
slope, land use and land cover, and proximity to water bodies,
roads, and powerlines. The criteria were combined through a
weighted linear combination method under five distinct weighting
scenarios to test the sensitivity of the site ranking to the assumed
priorities. The results show that pairing geospatial suitability screening with technoeconomic system optimization gives a practical, data-driven route
for planning renewable hydrogen projects along the coastal belt
of Bangladesh.