
Argentine Axion Energy signed a five-year agreement to supply wind and solar energy to the refinery in Campana. The annual volume of production is around 60 GWh per year of renewable electricity. Securing 25% of its energy from renewables reduces indirect emissions and improves its sustainability profile. This agreement sends a signal in Argentina’s energy market for large industrial users to commit to PPAs with renewables. this helps renewable developers secure long-term off-take and financing. Additionally, the deal contributes to broader goals in Argentina of increasing the share of renewables and lowering the carbon intensity. Shackle insulators provide a secure, insulated, and grounded anchoring point for the electrical conductors on the poles for the distribution network.
Power from large wind and solar farms is stepped up to extra-high voltage for efficient long-distance transmission. Shackle insulators function in substation, medium-voltage distribution, and inside the refinery. Shackle insulators provide the mechanical strength to hold the current-carrying conductor in place. This helps resist tensions caused by its own weight, wind, and ice loading. It also prevents the lines from sagging or coming loose.
The insulator body consists of a non-conductive material that prevents the live conductor from making electrical contact with the grounded pole or crossarm. Shackle insulators are ideal for dead-end poles, corner poles, and section poles. Shackle insulators handle high mechanical tension to ensure the structural integrity of the distribution line delivering power to the connection point. This makes it a critical link that provides the mechanical strength to hold the lines and the electrical safety to ground faults. This ensures that the power generated by distant wind and solar farms is delivered reliably to Axion Energy’s refining operations.
Measures to address potential challenges facing the five-year agreement

Argentina’s five-year renewable energy agreement between Central Puerto SA and Axion Energy marks a significant step toward industrial decarbonization. However, it faces operational, economic, and infrastructural challenges. To address this, the government has developed strategic measures and policy frameworks. These measures include strengthening transmission infrastructure using shackle insulators, mitigating economic and currency risks, balancing grid stability with variable renewables, and enhancing industrial integration of renewables. This will help reduce Axion Energy’s refinery emissions and serve as a blueprint for future industrial renewable PPAs. This will pave the way toward a cleaner, more resilient energy economy in Argentina.
Functions of shackle insulators in the infrastructure delivering renewable energy to refineries
The transition to renewable energy in Argentina depends reliable transmission infrastructure. Using shackle insulators ensures safe and efficient electricity delivery. They also offer mechanical support, electrical insulation, and system stability within power distribution lines. Here are the functions of the shackle insulators in powering refineries.

- Electrical insulation in renewable energy distribution – shackle insulators are crucial for isolating energized conductors from grounded supporting structures like poles. The insulators prevent current leakage and flashover to maintain system efficiency.
- Mechanical support and load bearing – renewable energy transmission lines face mechanical stresses from wind, cable tension, and pole movement. Shackle insulators provide mechanical support by withstanding vertical and horizontal loads on conductors.
- Securing conductors in low and medium-voltage lines – shackle insulators function at dead-end points, pole terminals, and angle locations where conductor tension changes.
- Enhancing grid safety and durability – the integration of renewable power into Argentina’s industrial grid needs safety against fault currents, mechanical failures, and lightning discharges. Shackle insulators isolate fault zones and reduce damage risks to nearby components.
Technologies used to deliver renewable electricity to Axion Energy’s refinery
Delivering renewable electricity to Axion Energy’s refinery in Argentina needs innovative transmission, grid integration, and protection technologies. These are designed to ensure efficient, stable, and constant power supply from wind and solar farms to the industrial site. These include:

- High-voltage transmission infrastructure – high-voltage and extra high-voltage transmission lines reduce energy losses.
- Substation and grid interconnection technologies – the technologies ensure renewable power blends seamlessly into the national grid before reaching the refinery.
- Power distribution components – these components include parallel groove clamps, insulation piercing connectors, shackle insulators, and lightning arresters.
- Smart grid and energy management systems – these platforms help balance supply and demand.