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Solar resource map copyright at 2021 Solargis. Licensed under the Creative Commons Attribution license (CC BY-SA 4.0). This is a solar resource map from Solargis. For a higher resolution map, please visit and download.
Average Solar Irradiance: 5.5–6.0 kWh/m²/day
Climate: Tropical with consistent sunlight year-round
Sunniest Period: December to April
These conditions make it ideal for year-round solar power generation, especially for rooftop and villa-scale systems.
If you need to learn more solar power potential in Saint Barthélemy, please feel free to contact Solarvance for more details.
Average Temperatures: 25°C–32°C
Climate Impact: Warm but not extreme; favorable for standard PV performance
Hurricane Season: June to November (system hardening is essential)
Electricity Source: Nearly 100% imported fossil fuel-based generation
Electricity Cost: Among the highest in the Caribbean
Grid Stability: Fair but vulnerable during storms
Opportunity: Solar energy offers high savings and adds value to luxury properties by enhancing resilience and reducing carbon footprint.
Residential Villas: Grid-tied or hybrid systems with storage
Hotels/Resorts: High-capacity solar with battery banks for energy independence
Commercial Properties: Rooftop PV with load optimization
Dust Factor: Low
Salt Exposure: High, due to small island geography and strong trade winds
Design Tip: Use marine-grade aluminum frames, stainless steel bolts, and anti-corrosion coated components. Install IP66+ junction boxes and regularly maintain to handle salt mist conditions.
Humidity: High year-round (70–85%)
Rainfall: Mainly during hurricane season; short but intense showers
Ensure all components are sealed against moisture and allow for proper drainage in panel and inverter design.
EU Standards: As part of France, it aligns with European renewable energy goals
Local Interest: Driven by sustainability and energy self-reliance, especially among hotels and luxury estates
No Current Rebates, but solar installations improve property value and reduce long-term energy costs significantly
Payback Period: Estimated at 5–7 years depending on system scale
Main Drivers: Energy independence, resilience, environmental branding, and rising energy prices
Tourism Sector Demand: Strong — many high-end resorts seek net-zero certification or green marketing advantages
Payback Period: Typically 4 to 6 years, faster if combined with battery storage
Long-Term Savings: Extremely high due to high utility costs and frequent outages
Battery ROI: Faster recovery when compared to diesel generators or grid-dependency
Saint Barthélemy offers a highly promising niche solar market — small in population but high in purchasing power and eco-awareness. With abundant sunshine, high energy costs, and rising demand from resorts, luxury villas, and eco-conscious developers, solar power represents both a smart investment and a sustainability statement.
At Solarvance, we deliver custom solar solutions built for island durability, with premium components ideal for Saint Barts’ tropical, saline, and high-wind environments.
☀️ Enhance your energy independence and property value in Saint Barthélemy — partner with us for solar systems designed for the Caribbean’s elite island lifestyle.
Contact us today to explore customized solar solutions for your needs, whether you’re interested in grid-connected, off-grid, or hybrid solar systems. Our team at Solarvance is here to guide you through every step of the process, from system design to installation and maintenance.
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