Macro-TES (Thermal Energy Storage): A Look at Five Innovative Projects

January 11, 2024

In recent years, the energy storage landscape has witnessed remarkable advancements in technology and infrastructure. These developments are essential in supporting the transition to cleaner and more sustainable energy sources. In this blog post, we will explore five exciting energy storage projects that are contributing to the renewable energy revolution across the United States.


  1. Sandia National Laboratories Solar Thermal Facility-Molten Salt Energy Storage System
  • Location: Albuquerque, New Mexico, USA
  • Capacity: 1,000,000 kW


The Sandia National Laboratories Solar Thermal Facility-Molten Salt Energy Storage System is a groundbreaking project that combines solar thermal technology with molten salt energy storage. Announced in 2017 and set to be commissioned later this year (2024), this project aims to provide reliable energy storage solutions. By utilizing molten salt, it can store excess thermal energy generated by the sun during the day and release it when needed, even after the sun has set. This innovative approach enhances grid stability and promotes the integration of renewable energy sources.

  1. Morro Bay Battery Energy Storage System
  • Location: Morro Bay, California, USA
  • Capacity: 600,000 kW
  • Storage Capacity: 2,400,000 kWh


The Morro Bay Battery Energy Storage System is a massive lithium-ion battery project located in California. Developed by Vistra, this electro-chemical battery storage facility boasts an impressive capacity of 600,000 kW and a storage capacity of 2,400,000 kWh. This energy storage solution enhances grid reliability, providing a rapid response to fluctuations in energy demand. Lithium-ion technology ensures efficiency and quick response times, making it an essential component of California's renewable energy infrastructure.

  1. Willow Rock Compressed Air Energy Storage System
  • Location: Rosamond, Kern County, California, USA
  • Capacity: 500,000 kW
  • Storage Capacity: 40,000,000 kWh


The Willow Rock Compressed Air Energy Storage System, announced in 2022 and owned by Hydrostor, harnesses electro-mechanical energy storage technology. This unique project relies on compressed air to store excess energy. During periods of low demand, energy is used to compress air and store it in underground reservoirs. When needed, the compressed air is released to generate electricity, offering a sustainable and efficient means of energy storage. The project's vast storage capacity of 40,000,000 kWh ensures a stable energy supply for the region.

  1. Daggett Solar Power Facility – Battery Energy Storage System
  • Location: San Bernardino, California, USA
  • Capacity: 450,000 kW


The Daggett Solar Power Facility – Battery Energy Storage System, developed by Clearway Energy Group, is set to be commissioned this year (2024). This lithium-ion battery storage project with a capacity of 450,000 kW will enhance California's grid resilience and support the integration of renewable energy sources. Lithium-ion technology offers a reliable and responsive energy storage solution, helping to balance the grid during peak demand periods.

  1. FPL Manatee Energy Storage Center – Battery Energy Storage System
  • Location: Manatee, Florida, USA
  • Capacity: 409,000 kW
  • Storage Capacity: 900,000 kWh


The FPL Manatee Energy Storage Center is a lithium-ion battery energy storage project developed by Florida Power & Light. Announced in 2019 and commissioned in 2021, this project plays a crucial role in ensuring energy reliability in Florida. With a capacity of 409,000 kW and a storage capacity of 900,000 kWh, it contributes to grid stability and facilitates the integration of renewable energy sources in the Sunshine State.


Conclusion:

These five projects represent the cutting edge of energy storage technology, demonstrating that a sustainable energy future is not only achievable but well within our reach. As we continue to invest in innovative solutions, we pave the way for a cleaner, greener, and more sustainable world for generations to come. These remarkable energy storage projects are not just changing the landscape of renewable energy but also the future of our planet. Notably, some of these projects are utilizing cutting-edge Phase Change Materials (PCMs) to solve the challenge of thermal storage, marking a significant advancement compared to decades ago. PCM technology is not only safe but also highly effective and feasible, further enhancing the reliability and efficiency of these energy storage systems. As these projects continue to evolve and expand, they will play a pivotal role in reducing carbon emissions and advancing the adoption of renewable energy across the United States.