Grenada’s Solar Surge Powers Progress with Renewable Energy

Country or Region Overview

Country or Region: Grenada

Capital: St. George’s

Total Population: Approximately 112,000 (as of 2025)

Geographical Location: Location: Grenada is an island nation located in the Caribbean Sea, just to the north of Trinidad and Tobago. Known as the "Spice Isle" for its production of nutmeg and other spices, Grenada enjoys a tropical climate with abundant sunshine, making it a prime candidate for solar energy adoption.

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.

Table of Contents

Solar Irradiation Data in Grenada

Grenada has excellent solar potential year-round, with strong solar irradiation due to its tropical location.

Key Solar Irradiation Data:

  • Annual Solar Irradiation: Typically ranges from 5.0 to 5.5 kWh/m²/day

  • High Irradiation Regions: The southern and western regions, including areas like Grand Anse, St. George’s, and Carriacou, experience the highest solar exposure

  • Peak Irradiation: Up to 5.5–6.0 kWh/m²/day during the dry season (December to April)

With consistent sunlight throughout the year, Grenada offers ideal conditions for solar power generation.

If you need to learn more solar power potential in Grenada, please feel free to contact Solarvance for more details.

Temperature Factors in Grenada

  • Average Annual Temperature: Ranges from 24°C to 30°C (75°F to 86°F)

  • Impact on Solar Panels: High temperatures are typical of tropical climates, but abundant sunlight ensures that solar panels perform well despite the warm conditions

Recommendation: Use high-efficiency monocrystalline solar panels, which are designed to perform efficiently in tropical conditions and can handle high temperatures while maximizing energy generation.

Energy Demand and Grid Situation in Grenada

  • National Energy Demand: Grenada’s energy demand is driven by residential needs, tourism, and agriculture

  • Electricity Source: The country has historically relied on diesel and oil imports for power generation, but the government is making efforts to increase renewable energy use

  • Electricity Costs: High electricity prices make solar energy an economically viable alternative for both residents and businesses looking to reduce energy bills

  • Grid Infrastructure: Grenada has a stable national grid, but there is a growing interest in off-grid solar solutions and solar microgrids to enhance resilience in rural or off-the-grid areas

Preferred System Type in Grenada

  • Grid-Connected Systems: Ideal for urban areas such as St. George’s and Grand Anse, where solar systems can benefit from net metering to sell excess energy back to the grid

  • Off-Grid Systems: Suited for remote communities, eco-tourism sites, and agricultural operations that are far from the national grid

  • Hybrid Systems: Combining solar PV, battery storage, and backup generators is ideal for critical infrastructure such as hospitals, hotels, and government buildings that require reliable, uninterrupted power

Dust and Sand Factor in Grenada

  • Dust Impact: Low dust accumulation, as Grenada is surrounded by the ocean and receives frequent rain that helps keep the air clean

Recommendation: Minimal cleaning is required, especially after the dry season or periods of tropical storms, which can bring dust from the Sahara Desert

Humidity and Rainfall (Humidity Factor) in Grenada

  • Humidity Levels: Grenada experiences high humidity, typically between 70% and 85%, especially during the rainy season

  • Rainfall: The rainy season runs from June to November, with heavy tropical showers and hurricanes

  • Impact on Solar Panels: Moisture and rain can cause corrosion over time if not properly addressed, but the overall impact is manageable with the right system design

Recommendation: Use IP-rated enclosures, corrosion-resistant materials, and weatherproof connections to protect against high humidity and rainwater exposure.

Ocean (Salt Corrosion Factor) in Grenada

  • Saltwater Corrosion: As a coastal island, salt exposure is a concern, particularly for systems near beaches and coastal areas

Recommendation: Use marine-grade materials such as stainless steel and anodized aluminum for solar racking and protective coatings for electrical components to prevent corrosion from saltwater

Government Policies and Solar Incentives in Grenada

The Grenadian government has shown a strong commitment to renewable energy:

  • Renewable Energy Goals: Grenada aims to produce 20% of its electricity from renewable sources by 2025, with solar energy playing a crucial role in this transition

  • Solar Incentives: The government has implemented tax exemptions and subsidies for solar equipment to encourage solar energy adoption

  • Net Metering: A net metering program allows residents and businesses to sell excess solar energy back to the grid, providing an economic incentive for adopting solar solutions

  • International Support: Grenada works with organizations like CARICOM, the World Bank, and IDB to fund and support renewable energy projects

ROI on Solar Systems in Grenada

  • ROI Period: Solar systems in Grenada typically achieve ROI within 5 to 7 years, thanks to strong solar irradiation and incentives from the government

  • Savings Potential: Solar adopters can expect to reduce electricity costs by 50–70%, particularly in high-energy-demand sectors like tourism and agriculture

Conclusion on Solar Power in Grenada

Grenada’s sunny weather, combined with its growing commitment to sustainable energy, makes it a perfect place for solar energy adoption. With strong government support, high solar potential, and economic incentives, solar power offers a cost-effective, reliable, and sustainable solution for Grenada’s energy needs.

At Solarvance, we are ready to help Grenada take full advantage of its solar energy potential. Our high-quality solar solutions are designed to withstand the island’s tropical climate, humidity, and salt exposure, ensuring long-term energy savings and sustainability for homes, businesses, and critical infrastructure.

Let’s work together to harness the sun’s energy and power Grenada’s future. Contact us today for more information on our solar solutions.

Choose Solarvance for Your Solar System

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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