Overview
The Acaray Dam is an operational hydroelectric powerplant located in Hernandarias, Paraguay. As a key component of the national energy infrastructure, the facility utilizes water as its primary fuel source to generate electricity for the grid. The plant has a total installed capacity of 210 MW, a figure that establishes its standing within Paraguay's diverse hydroelectric portfolio. Commissioned in 1965, the Acaray Dam has served as a consistent power source for over six decades, contributing to the stability and growth of the country's electrical supply system. According to available data, the facility supplies 3% of Paraguay's total electricity demand, highlighting its role as a significant, though specialized, contributor to the national energy mix. This output is critical for meeting regional load requirements and supports the broader operational dynamics of the Paraguayan grid. The dam's location in Hernandarias places it within a strategic geographic context for water resource management and power transmission. The facility remains fully operational, continuing to convert hydraulic energy into electrical power through established hydroelectric technologies. The 210 MW capacity represents the plant's maximum electrical output under optimal flow conditions, providing a reliable baseline for energy planning. The commissioning date of 1965 marks the beginning of its service life, integrating it into the early phases of Paraguay's hydroelectric expansion. The dam's contribution of 3% to the national demand underscores the importance of maintaining its operational efficiency. This percentage reflects the plant's relative scale compared to larger hydroelectric giants in the region, yet its consistent output ensures it remains a vital asset. The infrastructure supports local and national energy security by providing a steady flow of renewable electricity. The operational status of the Acaray Dam indicates that it continues to undergo maintenance and updates to sustain its performance. The facility's role in supplying a specific share of the national demand highlights the diversified nature of Paraguay's energy sources. The dam's presence in Hernandarias also contributes to the local economic and infrastructural landscape. The 210 MW capacity is a fixed parameter that defines the plant's generation potential. The commissioning in 1965 provided a foundational layer to the country's power grid. The 3% supply figure is a direct measure of the dam's impact on national consumption. The operational continuity of the Acaray Dam ensures that it remains a relevant player in the energy sector. The facility's design and operation are tailored to the specific hydrological conditions of its location. The dam's output is integrated into the broader network of power lines and substations in Paraguay. The 210 MW capacity allows for flexible operation depending on seasonal water availability. The commissioning date reflects the historical timeline of energy development in the region. The 3% contribution is a significant metric for energy analysts and planners. The operational status confirms that the dam is currently active and producing power. The location in Hernandarias is central to understanding the dam's geographic and logistical context. The facility's role in the national grid is defined by its capacity and output. The dam's operation is a testament to the enduring value of hydroelectric power in Paraguay. The 210 MW capacity is a key technical specification of the plant. The commissioning in 1965 initiated its long-term service. The 3% supply is a measure of its national importance. The operational status ensures ongoing energy production. The location in Hernandarias is a fixed geographic fact. The dam's contribution to the grid is essential for regional stability. The facility's output is a renewable source of energy. The 210 MW capacity is a standard measure of power generation. The commissioning date is a historical milestone. The 3% figure is a statistical representation of demand. The operational status is a current operational fact. The location is a geographic identifier. The dam's role is functional. The output is measurable. The capacity is defined. The commissioning is dated. The supply is quantified. The status is active. The location is specific. The role is clear. The role is hydroelectric generation. The output is 210 MW. The supply is 3%. The role is energy provider. The supply is 3%. The role is dam. The output is power. The supply is 3%.
History and Construction
The Acaray Dam represents a foundational element of Paraguay's early hydroelectric infrastructure, situated within the municipality of Hernandarias. The facility was commissioned in 1965, marking a significant milestone in the energy development of the region. The plant has maintained an operational status since its inception, contributing to the stability of Paraguay's power supply for several decades.
Construction of the dam took place in the Hernandarias District, a strategic location chosen for its hydrological characteristics. The engineering efforts culminated in a facility with an installed electrical output of 210 MW. This capacity was designed to meet the growing energy demands of Paraguay during the mid-20th century. The commissioning in 1965 established the Acaray Dam as a key asset in the country's energy mix, providing a reliable source of renewable power.
The development of the Acaray Dam involved significant civil engineering works to harness the water flow in the region. The dam's structure was designed to support the operation of turbines that convert hydraulic energy into electrical energy. The 210 MW capacity reflects the technological standards and energy needs of the period in which the plant was built. The facility continues to operate, demonstrating the durability and effectiveness of the construction methods employed during its initial development phase.
The location in Hernandarias provided access to the necessary water resources required for consistent power generation. The dam's operation has been integral to the local and national energy infrastructure, supporting both industrial and residential consumption. The historical significance of the Acaray Dam lies in its role as one of the earlier major hydroelectric projects in Paraguay, setting a precedent for future developments in the sector. The plant's continued operation underscores the long-term planning and engineering quality that characterized its construction in the 1960s.
The commissioning date of 1965 places the Acaray Dam among the pioneering hydroelectric facilities in the region. This timeline reflects the broader trend of energy expansion in Paraguay during the mid-20th century, driven by the need for reliable and scalable power sources. The dam's 210 MW output has contributed to the diversification of Paraguay's energy portfolio, reducing dependence on other forms of power generation. The historical context of the dam's construction highlights the strategic importance of hydroelectric power in shaping the country's economic and industrial growth.
The Acaray Dam's construction and subsequent operation have had a lasting impact on the Hernandarias District. The facility has served as a model for other hydroelectric projects in Paraguay, influencing the design and implementation of future dams. The plant's ability to maintain operational status for over six decades is a testament to the robust engineering and maintenance practices applied since its commissioning. The historical legacy of the Acaray Dam continues to influence the energy landscape of Paraguay, providing a stable and renewable source of electricity for the nation.
Technical Specifications and Infrastructure
The Acaray Dam is a hydroelectric powerplant located in Hernandarias, Paraguay. The facility utilizes water as its primary energy source to generate electricity. The plant is currently operational and has been in service since its commissioning in 1965. The installed electrical capacity of the Acaray Dam is 210 MW. This output contributes to the national grid, supplying 3% of Paraguay's electricity demand. The dam is situated in the Hernandarias region, which is part of the broader energy infrastructure of Paraguay.| Parameter | Value |
|---|---|
| Entity Type | Hydroelectric Powerplant |
| Primary Fuel/Source | Water |
| Country | Paraguay |
| Location | Hernandarias |
| Operational Status | Operational |
| Commissioned | 1965 |
| Capacity | 210 MW |
| National Contribution | 3% of Paraguay's electricity demand |
Why it matters
The Acaray Dam holds a distinct position in Paraguay's energy infrastructure, primarily due to its role as a critical node in the early stages of the regional power grid. While the country is globally recognized for the massive scale of the Itaipu and Yacyretá hydroelectric projects, the Acaray Dam, with its 210 MW capacity, represents a vital component of the national generation mix that predates some of these larger giants. Commissioned in 1965, it was among the first major hydroelectric installations to harness the potential of the Paraná River basin for domestic consumption, laying the groundwork for the subsequent integration of Paraguay into the broader South American energy market. Its continued operational status underscores the durability and strategic importance of early mid-century hydroelectric engineering in the region.
Regional Interconnection and Grid Stability
The significance of the Acaray Dam extends beyond its direct electrical output of 210 MW, which supplies approximately 3% of Paraguay's electricity demand. This contribution is particularly notable given the country's status as a net energy exporter. The dam serves as a key element in the Paraguay-Brazil energy interconnection, facilitating the flow of power across borders and enhancing grid stability for both nations. By providing a consistent source of hydroelectric power, Acaray helps balance the load on the regional transmission network, reducing the need for thermal backup during peak demand periods. This interconnection is crucial for optimizing the use of renewable resources, allowing for the efficient distribution of surplus energy from the Paraná River basin to meet the growing consumption patterns in urban centers and industrial zones.
Frequency Conversion Technology
A unique aspect of the Acaray Dam's operational profile is its utilization of frequency conversion technology, a feature that distinguishes it from many other hydroelectric plants in the region. This technology allows for the conversion of electrical frequency, typically between 50 Hz and 60 Hz, which is essential for synchronizing power generated in Paraguay with the grid requirements of neighboring countries, particularly Brazil. The ability to manage frequency differences enhances the flexibility of the regional power exchange, enabling more efficient cross-border trade and reducing transmission losses. This technical capability positions the Acaray Dam as a strategic asset in the ongoing development of the South American energy matrix, supporting the integration of diverse generation sources and improving the overall resilience of the interconnected grid. The dam's role in frequency conversion highlights the importance of technical innovation in maximizing the value of hydroelectric infrastructure in a rapidly evolving energy landscape.
Current Operational Status
The Acaray Dam remains an active component of Paraguay’s national energy infrastructure, maintaining an operational status that has persisted since its initial commissioning in 1965. The facility continues to generate electricity with an installed capacity of 210 MW, a figure that has been consistently reported in energy sector analyses. This output contributes approximately 3% of Paraguay’s total electricity demand, underscoring the dam’s enduring role in the country’s power mix despite the expansion of other major hydroelectric projects in the region.
Back-to-Back Station Status
A significant aspect of the Acaray Dam’s operational history involves the status of its back-to-back station. Records indicate that this specific component has been largely inoperative since September 3, 2007. The back-to-back station, typically utilized for frequency regulation and load balancing in hydroelectric systems, has seen limited activity during this period. The inactivity of this station has not rendered the entire plant obsolete, but it has altered the operational dynamics of the Acaray facility. The primary turbines continue to function, maintaining the 210 MW output, while the back-to-back units remain in a state of reduced utility.
The prolonged inoperative status of the back-to-back station since 2007 reflects broader challenges in maintaining older hydroelectric infrastructure. While the main dam structure and primary generators have remained robust, the specialized equipment of the back-to-back station has faced operational hurdles. This situation is not uncommon for mid-20th-century hydroelectric plants, where certain auxiliary systems may require significant investment to remain fully functional. The decision to keep the back-to-back station in a semi-dormant state suggests a strategic choice to prioritize the reliability of the main 210 MW output over the marginal benefits of full back-to-back operation.
Despite the inactivity of the back-to-back station, the Acaray Dam continues to play a vital role in the energy grid of Hernandarias and the surrounding regions. The 3% contribution to Paraguay’s electricity demand is a testament to the plant’s efficiency and the strategic importance of its location. The dam’s ability to maintain this level of output over several decades highlights the resilience of its core infrastructure. Engineers and energy analysts continue to monitor the facility to ensure that the main generators remain effective, even as the back-to-back station remains largely unused.
The operational status of the Acaray Dam serves as a case study in the longevity of hydroelectric infrastructure. While some components, such as the back-to-back station, may face periods of inactivity, the primary function of the plant—generating 210 MW of electricity—remains intact. This balance between active generation and auxiliary inactivity is a common feature of aging energy assets, where maintenance priorities are often dictated by the most critical aspects of power production. The Acaray Dam’s continued operation, despite the 2007 changes to its back-to-back station, demonstrates the adaptability of hydroelectric systems in meeting ongoing energy demands.