Thermal energy storage plays a significant role in balancing the electrical grid in cities by providing a means to manage energy supply and demand variability, particularly with the integration of renewable energy sources like solar and wind. Here’s how it contributes:
Key Functions of Thermal Energy Storage
- Load Shifting and Grid Balancing:
- Thermal energy storage (TES) allows for the collection of excess energy during periods of low demand and releases it when needed, helping to stabilize the grid by reducing peak loads and smoothing out supply variations.
- This is crucial for balancing the variable output from renewable energy sources, ensuring consistent power delivery.
- Integration with Buildings and HVAC Systems:
- TES can be integrated with heating, ventilation, and air conditioning (HVAC) systems, utilizing phase-change materials (PCMs) to store thermal energy, which helps in reducing peak demand and making HVAC systems more efficient.
- This integration can reduce the size of HVAC equipment needed and allow for load shifting to times with more favorable electricity rates, benefiting both utilities and consumers.
- Use of Concrete and Other Materials:
- Concrete and other materials can store heat, acting as thermal batteries, thereby contributing to the flexibility and resilience of urban energy systems.
- This passive thermal storage helps in absorbing or releasing heat as needed, smoothing energy demand patterns.
- Enhancing Grid Flexibility:
- By providing a buffer against fluctuating energy supply, TES helps maintain grid stability and supports the transition towards renewable energy-dominated energy systems.
Overall, thermal energy storage serves as a versatile tool to manage urban energy supply and demand, enhancing the stability and efficiency of the electrical grid in cities.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/what-role-does-thermal-energy-storage-play-in-balancing-the-electrical-grid-in-cities/
