The tourism sector is a major consumer of energy, with resorts, hotels, and eco-lodges relying heavily on electricity for lighting, air conditioning, water heating, desalination, transport, and luxury amenities. As global tourism expands, carbon emissions from hospitality infrastructure continue to rise. Renewable energy adoption—through solar, wind, biomass, geothermal, and hybrid microgrids—offers a sustainable pathway to reduce the environmental footprint of tourism facilities.

This comparative study analyzes renewable energy deployment in 75 resorts across India, Portugal, and Kenya using surveys, energy audits, and interviews. Results show increasing adoption of solar PV (72%), solar water heating (65%), small-scale wind (18%), biomass boilers (11%), and geothermal heating (4%). Resorts with renewable systems reduced energy costs by 25–60%, achieved a 38% drop in CO₂ emissions, and enhanced brand reputation as eco-friendly destinations. However, financial barriers, maintenance challenges, and inconsistent regulatory frameworks hinder full-scale adoption.