Understanding Electrical Ancillary Services

September 2024

Electrical ancillary services are vital for ensuring the reliability and stability of the power grid. These services facilitate the transmission of electric power from generators to consumers while maintaining the quality and security of the electricity supply. As the energy landscape evolves, the demand for these services grows, especially with the integration of renewable energy sources. The increasing complexity of energy systems necessitates a proactive approach to managing these services effectively, ensuring that they can adapt to changing conditions and demands.

What Are Electrical Ancillary Services?

Ancillary services encompass a variety of support functions that help uphold the reliability of the electricity grid. Key services include:

Frequency Regulation: This service maintains the frequency of the electricity supply, typically around 50 or 60 Hz, depending on the region.
Voltage Control: Voltage levels must be kept within specified limits to ensure safe and efficient grid operation.
Reserve Power: This includes both spinning and non-spinning reserves that can be quickly activated to meet sudden increases in demand or generation losses.
Black Start Capability: This service enables the grid to restart after a blackout without relying on external power sources.

The Growing Importance of Ancillary Services

As renewable energy sources, such as wind and solar, become more prevalent in the grid, the need for ancillary services becomes increasingly important. These sources can be variable and unpredictable, making it essential to have robust systems in place to manage their impact on grid stability. The integration of smart technologies and advanced analytics can enhance the effectiveness of these services, allowing for real-time adjustments and improved responsiveness.

According to a report by the International Energy Agency (IEA), the demand for ancillary services is projected to rise significantly as countries transition to cleaner energy systems. This transition presents opportunities for energy providers to innovate and adapt. By embracing new technologies and strategies, the energy sector can enhance its resilience and efficiency, ultimately benefiting consumers and the environment.

SENS's Contribution to Ancillary Services

Sustainable Energy Solutions Sweden Holding AB (SENS) is well-equipped to meet the growing demand for ancillary services. The company's expertise in developing large-scale energy projects integrates renewable energy sources with advanced energy storage technologies. Here are some ways SENS can contribute:

Underground Pumped Hydro Storage (UPHS): This technology enables efficient energy storage and provides rapid response capabilities for frequency regulation and reserve power.
Battery Energy Storage Systems (BESS): SENS's BESS solutions can stabilize voltage levels and offer backup power during peak demand periods.
Technical Advisory Services: SENS provides consultancy services that optimize energy systems, ensuring effective integration of ancillary services into the grid.

Conclusion

The demand for electrical ancillary services is expected to grow as the energy sector moves towards sustainability. SENS's innovative solutions, including UPHS and BESS, position the company as a key player in this evolving landscape. By leveraging advanced technologies and expertise, SENS can contribute to a stable and reliable electricity supply for the future. This commitment to innovation and sustainability will not only enhance grid reliability but also support the broader transition to a cleaner energy future.

Follow us for more information at https://www.sens.se/en/17/76/about-us/ or https://www.linkedin.com/company/sens-sustainable-energy-solutions