Sabkha soils along the Arabian Gulf coast of Eastern Saudi Arabia form one of the most difficult ground environments for renewable energy infrastructure because evaporite cementation, shallow brine, high salinity, variable fabric, and wetting-induced collapse interact over short distances. This review evaluates the geotechnical suitability of these soils for photovoltaic parks, concentrating solar plants, wind farm pads, substations, and transmission corridors. The aim is to synthesise recent evidence from 2020 to 2025 and translate it into a practical decision framework for screening, design, improvement, and operation. A structured narrative methodology was used, drawing on peer-reviewed studies, Saudi case evidence, regional renewable-energy reports, and recent standards-oriented infrastructure literature. The review shows that sabkha suitability cannot be inferred from bearing capacity alone. A defensible assessment must combine stratigraphy, groundwater level, pore-water chemistry, collapsibility, corrosion potential, dynamic response, trafficability, and dust-generation susceptibility. The most critical hazards are loss of salt bonding during freshwater intrusion, differential settlement under lightly loaded but spatially extensive arrays, corrosive attack on steel and reinforced concrete, rutting of maintenance roads, and dust supply from disturbed saline crusts. The paper proposes a tiered suitability model that classifies ground as suitable, conditional, or unsuitable according to coupled hydro-chemo-mechanical indicators. The synthesis supports early avoidance of high-risk sabkha where possible, targeted ground improvement where development is necessary, and monitoring systems that link moisture, salinity, settlement, and soiling to maintenance triggers.