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Sandillal Hydroelectric Plant
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The Sandillal Hydroelectric Plant, located near Cañas in the Guanacaste province, is an essential component of the Arenal-Corobicí hydroelectric complex, the largest of its kind in Costa Rica. Operational since 1992, the plant utilizes water that has already passed through the upstream Arenal and Corobicí turbines, maximizing the energy potential of the resource before it is channeled for irrigation. With an installed capacity of approximately 32 megawatts, Sandillal contributes to the national power grid's stability while showcasing high-efficiency cascade water management. Geographically, the plant is situated in a strategic zone where water control is vital for both power generation and regional agriculture. Operated by the state utility ICE, it plays a key role in regulating water flow for the Tempisque Irrigation Project, which supplies thousands of hectares of farmland in the dry Guanacaste lowlands. Sandillal reinforces Costa Rica's commitment to clean energy, demonstrating how large-scale engineering can successfully balance industrial needs with environmental sustainability and food security.
- Location: Costa Rica
- Nearby: Chacarita (6 km)
Best time to visit & climate
The most pleasant time to visit is Jan, Feb, Dec.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 24 | 25 | 26 | 27 | 27 | 25 | 25 | 25 | 25 | 24 | 24 | 24 |
| Rain mm | 13 | 9 | 10 | 40 | 187 | 177 | 131 | 176 | 252 | 289 | 132 | 28 |
📋 Practical info
What is this place?
The Sandillal Hydroelectric Plant is located in the Arenal region of Costa Rica, harnessing the water power of Lake Arenal to generate electricity. It is an important part of the national energy grid and supports sustainable development.
Visiting
The plant itself is not open to the public, but the dam and the lake are well visible from the road. Visitors can enjoy the view of the reservoir and the surrounding mountains.
Where to view it
The best viewpoint is the road along Lake Arenal, from which the dam and discharge channels can be seen. Viewpoints on the shore offer photo opportunities of the water level and forested hills.
Local products
In the Arenal region, coffee, cocoa, and tropical fruits are grown. Visitors can buy fresh pineapple, papaya, and guava at local markets or from roadside vendors.
Active season
The plant's operation is continuous, but electricity generation is highest in the rainy season from May to November. The agricultural season in the region brings additional activity in the months December to April.
Nearby
Combine a visit with the Arenal Volcano and its hiking trails, as well as the hot springs of Tabacón. The Volcán Arenal National Park and the lake offer activities such as kayaking and fishing.
Geography
Facts
- Part of the Arenal-Corobicí hydroelectric complex.
- Began commercial operations in 1992.
- Installed capacity of approximately 32 megawatts.
- Uses water in a high-efficiency three-stage cascade.
- Crucial for the Tempisque regional irrigation project.
- Owned and operated by the state agency ICE.
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Frequently asked questions
What is the Sandillal Hydroelectric Plant?
An important hydroelectric plant in Guanacaste province, contributing to Costa Rica's green energy balance.
Which river feeds the power plant?
It utilizes water from the Arenal reservoir system via the Santa Rosa canal.
What is the capacity of the plant?
The installed capacity is approximately 32 megawatts.
Can tourists visit the facility?
There are no regular tours, but the impressive dam structure is visible from nearby roads.
Why is hydroelectric power so important in Costa Rica?
It is the primary source of electricity generation, enabling the country to be nearly 100% renewable.
Sandillal Hydroelectric Plant: where is it located?
Sandillal Hydroelectric Plant is located in Costa Rica.
Sandillal Hydroelectric Plant: when is the best time to visit?
The most pleasant time to visit is Jan, Feb, Dec.
Sandillal Hydroelectric Plant: why is it worth visiting?
The Sandillal Hydroelectric Plant, located near Cañas in the Guanacaste province, is an essential component of the Arenal-Corobicí hydroelectric complex, the largest of its kind in Costa Rica.
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