Solar Power Opportunities Transforming Andorra’s Energy Landscape

Country or Region Overview

Country or Region: Andorra

Capital: Andorra la Vella

Total Population: Approximately 80,000 (as of 2025)

Geographical Location: Andorra is a small, landlocked country nestled in the eastern Pyrenees mountains between France and Spain. Known for its rugged mountainous terrain, tourism-driven economy, and high altitude, Andorra presents a unique environment for renewable energy development.

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.

Solar Irradiation Data in Andorra

Despite its mountainous landscape, Andorra benefits from good solar irradiation, particularly on south-facing slopes and rooftops. The country experiences over 2,000 hours of sunshine annually, making solar energy a viable resource.

Key Solar Irradiation Data:

Annual Solar Irradiation: Typically ranges from 3.5 to 4.8 kWh/m²/day
High Irradiation Regions: Southern slopes, urban rooftops in Andorra la Vella, Escaldes-Engordany, and Canillo
Peak Irradiation: During the spring and summer months, reaching 5.0–5.5 kWh/m²/day

Although winters bring snow and cloud cover, the long daylight hours in summer and high-altitude conditions allow for effective solar power generation.

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

Temperature Factors in Andorra

Average Annual Temperature: Cool to temperate climate, ranging from 5°C to 14°C (41°F to 57°F) depending on elevation
Impact on Solar Panels: Cool temperatures enhance solar panel efficiency, counterbalancing occasional snowfall or cloudy periods

Recommendation: Use high-efficiency, snow-tolerant PV modules, installed at steep angles to assist snow shedding and maximize winter sun capture.

Energy Demand and Grid Situation in Andorra

National Energy Demand: Andorra’s energy consumption is heavily influenced by heating needs in winter and tourism-related infrastructure
Grid Infrastructure: The country has a reliable but relatively small grid, historically importing a significant portion of its electricity from France and Spain
Opportunities from Global Events: There is growing emphasis on increasing local renewable energy production to improve energy autonomy and reduce emissions

Preferred System Type in Andorra

Grid-Connected Systems: Well-suited for residential rooftops, hotels, and commercial buildings, especially with limited land availability
Off-Grid Systems: Suitable for remote mountain cabins, tourism lodges, and farms where grid extension is costly
Hybrid Systems: Combining solar, battery storage, and backup generators to ensure continuous energy supply in remote and winter-prone areas

Dust and Sand Factor in Andorra

Dust and Sandstorms: Minimal dust accumulation due to clean mountain air and frequent precipitation
Recommendation: Routine inspections and occasional cleaning are sufficient, especially after winter snow melts

Humidity and Rainfall (Humidity Factor) in Andorra

Humidity Levels: Moderate, with relatively low humidity year-round, except for brief rainy seasons
Impact on Solar Panels: Very limited risk from humidity; good conditions for long-lasting solar equipment
Recommendation: Standard weather-sealed systems offer excellent durability

Ocean (Salt Corrosion Factor) in Andorra

Saltwater Corrosion: Being landlocked and at high altitude, Andorra has no exposure to salt spray
Recommendation: No special salt-resistant protections are needed

Government Policies and Solar Incentives in Andorra

Andorra is making steady progress toward greater renewable energy adoption:

National Energy Strategy 2030: Aims to increase local renewable energy production, with solar expected to play a key role
Self-Consumption Legislation: Enables private and commercial buildings to install solar panels and consume their own generated electricity
Subsidies and Grants: Government programs offer financial assistance for installing solar PV and battery systems
EU and Regional Cooperation: Despite not being an EU member, Andorra aligns with European renewable energy directives and policies

ROI on Solar Systems in Andorra

ROI Period: Solar installations typically achieve ROI within 6–9 years, faster for larger commercial or public sector projects
Long-Term Savings: Solar users can reduce grid dependency and lower energy bills by 50–70%, depending on system size and self-consumption

Conclusion on Solar Power in Andorra

Tucked into the heart of the Pyrenees, Andorra is embracing solar energy not just as a technological choice, but as a strategic path toward greater energy sovereignty. With strong sun exposure, a cool climate ideal for panel efficiency, and government backing, solar is perfectly suited to complement the country’s goals for a greener, more independent future.

For homes perched on mountain slopes, hotels seeking sustainability credentials, or businesses looking to cut long-term energy costs, solar offers a reliable and smart solution. Solarvance is ready to help Andorra harness its alpine sunlight with high-efficiency, rugged solar systems, designed to withstand the elements and deliver consistent performance.

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.