Tapping into Paraguay’s Abundant Solar Resources

Country or Region Overview

Country or Region: Paraguay

Capital: Asunción

Total Population: Approximately 7.5 million (as of 2025)

Geographical Location: Paraguay is located in central South America, bordered by Argentina to the south and southwest, Brazil to the east and northeast, and Bolivia to the northwest. It is a landlocked country characterized by vast plains, woodlands, and subtropical forests.

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 Paraguay

Paraguay enjoys good solar energy potential, with consistent sunshine year-round, especially in its western Chaco region and eastern grasslands.

Key Solar Irradiation Data:

Annual Solar Irradiation: Typically ranges from 4.5 to 5.5 kWh/m²/day
High Irradiation Regions: Chaco region (Boquerón, Presidente Hayes), Central Department, Itapúa
Peak Irradiation: Up to 5.5 kWh/m²/day, especially during the dry season from May to September

Thanks to its favorable sunlight conditions and growing energy needs, Paraguay has strong potential for both distributed and utility-scale solar power.

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

Temperature Factors in Paraguay

Average Annual Temperature: Generally ranges from 22°C to 27°C, hotter in the west and cooler in the southeast
Impact on Solar Panels: Higher temperatures, particularly in the Chaco, may cause minor efficiency drops, but steady irradiation balances out potential losses

Recommendation: Use high-temperature-tolerant solar panels and design systems with adequate airflow for cooling efficiency.

Energy Demand and Grid Situation in Paraguay

National Energy Demand: Paraguay’s per capita energy consumption is low but rising, especially with urban growth and industrial expansion
Grid Infrastructure: Paraguay benefits from abundant hydroelectric energy (mainly from the Itaipú and Yacyretá dams), but grid coverage is less reliable in rural western areas
Opportunities from Global Events: There’s a growing push to diversify beyond hydropower, particularly given vulnerability to climate change-related droughts

Preferred System Type in Paraguay

Grid-Connected Systems: Ideal for urban areas like Asunción, Ciudad del Este, and Encarnación, enhancing sustainability and reducing grid dependency
Off-Grid Systems: Necessary for remote villages and agricultural farms, particularly across the Chaco region
Hybrid Systems: Suitable for industrial sites, ranches, and government facilities, combining solar, batteries, and backup systems for resilience

Dust and Sand Factor in Paraguay

Dust and Sandstorms: Moderate dust levels are present in western Paraguay (Chaco), where dry seasons create dusty conditions
Recommendation: Tilted installations and periodic cleaning ensure that dust does not significantly reduce panel efficiency

Humidity and Rainfall (Humidity Factor) in Paraguay

Humidity Levels: High humidity in the eastern and central regions, especially during summer months (November–March)
Impact on Solar Panels: Humidity can cause corrosion and component degradation over time
Recommendation: Use corrosion-resistant, tropical-grade panels with sealed connections to resist moisture

Ocean (Salt Corrosion Factor) in Paraguay

Saltwater Corrosion: As a landlocked country, Paraguay has no saltwater exposure risk for solar installations
Recommendation: Standard solar materials and mounts are sufficient without need for marine-grade protections

Government Policies and Solar Incentives in Paraguay

Paraguay is beginning to open the door for renewable energy investment:

National Energy Policy 2040: Calls for energy diversification, with solar energy identified as a key pillar for rural electrification
Tax Incentives: Certain renewable energy equipment enjoys reduced import duties and taxes
International Projects: Development programs funded by the Inter-American Development Bank (IDB) and other agencies are supporting off-grid solar projects
Private Sector Growth: An increasing number of businesses and developers are investing in private solar plants and self-generation projects

ROI on Solar Systems in Paraguay

ROI Period: Solar systems in Paraguay typically achieve payback within 5–8 years, with faster ROI in remote areas that rely on diesel generators
Long-Term Savings: Solar adopters can reduce energy costs by up to 70% over the system’s 25-year life span

Conclusion on Solar Power in Paraguay

Paraguay is a country rich in natural energy — from the mighty rivers that fuel its hydroelectric plants to the powerful sun that crosses its skies year-round. While hydropower has long been the country’s energy backbone, diversification is no longer a future goal — it’s a present necessity. Droughts, rising demand, and rural electrification needs are opening a major opportunity for solar energy to shine.

Solar isn’t just a backup for Paraguay; it’s a catalyst for energy resilience, rural empowerment, and a greener economy. At Solarvance, we see the immense potential in bringing reliable, scalable, and climate-smart solar solutions to Paraguay’s homes, farms, and businesses — from the Chaco plains to the vibrant cities.

Let’s work together to power Paraguay’s next energy revolution — clean, affordable, and powered by the sun.

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.