Design and performance evaluation of thermal energy storage
Highlights • Hybrid thermal energy storage system integrated into thermal power plant is proposed. • Thermo-economic analysis models and performance indicators are
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Can thermal storage power plants achieve 100 % renewable power supply?
The paper at hand presents a new approach to achieve 100 % renewable power supply introducing Thermal Storage Power Plants (TSPP) that integrate firm power capacity from biofuels with variable renewable electricity converted to flexible power via integrated thermal energy storage.
Can hybrid energy storage system be integrated into thermal power plant?
Hybrid thermal energy storage system integrated into thermal power plant is proposed. Thermo-economic analysis models and performance indicators are developed. High operational flexibility and energy storage round-trip efficiency are co-achieved. The maximum equivalent round-trip efficiency of the proposed system reaches 62.97 %.
Are thermal storages a key element in future smart energy systems?
This makes thermal storages a key element in future Smart Energy Systems, with integration of heating, cooling, electricity, gas and transport systems. Since the 80ties large scale thermal storages have been developed and tested in the Danish energy system.
What are the characteristics of thermal storage power plants?
They must be energy efficient and cost-effective in spite of low annual utilization rates (equivalent full load hours). Thermal Storage Power Plants comply with the abovementioned characteristics, are based on state-of-the-art technology and are on the verge of being realized in first-of-a-kind pilot plants .
What is thermal storage power plant (TSPP)?
Thermal Storage Power Plants (TSPP) that integrate solar- and bioenergy are proposed for that purpose. Finally, in the third phase, renewable power supply can be extended to other sectors via power-to-X technologies, reducing fossil fuel consumption for transport, heat and industrial purposes.
Which energy storage technologies are used in the power system?
To accommodate more renewable energy in the power system, various energy storage technologies are used in the power system, including battery energy storage, thermal energy storage, thermochemical energy storage, and hydrogen energy storage .