ContourGlobal recently announced the start of operations for battery energy storage systems at the Victor Jara hybrid plant in Tarapaca, Chile. The plant can provide 6.5 hours of continuous electricity output. The project is combined with an on-site 231 MWp solar PV plant, with a storage system capable of delivering up to 200 MW of energy. This makes it one of the longest-lasting utility-scale BESS storage projects in South America. However, increased renewable penetration poses issues for grid operators because solar and wind output varies according to weather conditions. The Victor Jara balances supply and demand, reduces curtailment, and improves grid stability. The project demonstrates how storage might ease broader integration of renewable energy. The interconnection between the solar park and the BESS depends on components such as the secondary clevis.
The secondary clevis is a specialized component that secures connections, provides insulation, and maintains structural stability in the power infrastructure. Secondary clevises provide secure connections between line insulators and other support structures. This guarantees that the insulators that contain active electrical conductors are secured to the plant’s structural supports. The clevis facilitates articulation between rigid structures and conductors. This elasticity helps to absorb mechanical loads and strains induced by high winds, as well as thermal expansion and contraction. Additionally, the secondary clevis keeps the conductor from falling, preventing power outages and safety problems.
Quality assurance of secondary clevis used in solar and storage systems in Chile
Secondary clevis with quality assurance can be used as mechanical connectors in transmission and distribution systems. Failure of the secondary clevis can result in power outages, equipment damage, safety hazards, and maintenance. Quality assurance is critical throughout the fabrication and installation of the secondary clevis. The process entails material verification, forging and production inspection, mechanical load testing, quality control, and non-destructive testing. By employing QA methods, project developers may maintain reliability, improve grid stability, and extend the life of renewable energy infrastructure in Chile’s harsh environment.
Secondary clevis functions in Chilean solar PV and BESS hybrid plants
The secondary clevis protects the dependability and safety of the electricity transmission and distribution system. It establishes secure mechanical connections between insulators, conductors, and support fittings. The Victor Jara solar-plus-storage facility expansion requires secondary clevis fittings to assist maintain the integrity of the electrical network that transports power from production facilities to substations and the national grid. Here are their roles within the plant.
- Connecting insulator assemblies—the clevis creates a mechanical linkage between insulators and line hardware components. The fitting connects suspension insulators, strain insulators, crossarm hardware, conductors, and link fittings.
- Transferring mechanical loads—the secondary clevis distributes loads throughout the insulator string and supporting structure. Load transfer prevents stress concentrations that could damage conductors, insulators, or support hardware.
- Supporting grid reliability—failure in transmission hardware results in power interruptions, reduced energy delivery, and equipment damage. The clevis contributes to grid reliability by providing durable and secure connections in the infrastructure.
- Supporting high-capacity power evacuation—the transmission infrastructure supporting the plant needs hardware that can withstand mechanical loads. The secondary clevis helps maintain the structural integrity of high-voltage transmission lines and collector systems.
- Installation and maintenance—secondary fittings simplify transmission line construction, insulator replacement, hardware upgrades, and routine maintenance activities. They help improve construction efficiency and reduce installation time.
Economic and grid advantages of the Victor Jara project in Chile
The solar plus storage hybrid plant combines large-scale solar output and long-term battery energy storage. The integration of a 231 MWp solar PV facility and a 200 MW BESS increases renewable energy value while enhancing power system dependability. BESS absorbs power faster, allowing grid operators to maintain system balance. The Victor Jara BESS helps to regulate frequency, provide voltage support, balance loads, and integrate renewable energy sources. This enhances grid stability and allows operators to better handle changes in renewable energy and electricity demand.
Additionally, large-scale storage can help reduce congestion on transmission networks by storing excess generation and releasing it when needed. This reduces stress on grid infrastructure and can postpone upgrades to transmission lines and substations. Using secondary clevis secures the insulator hardware on power lines linking solar inverters and battery storage to the electrical network. The clevises serve in auxiliary connections or lower-current busbar links in battery racks. The construction of the clevis helps dampen micro-vibrations that travel through conductors. This reduces metal-to-metal fatigue and protects insulation from cracking.