Concentrating solar thermal power.

Area of Science:

• Renewable Energy Engineering
• Thermodynamics
• Sustainable Power Generation

Background:

• Concentrating solar thermal power (CSP) is a key renewable energy source, leveraging nearly 30 years of multi-megawatt operational experience.
• CSP technology offers a reliable cost and performance record, with significant global capacity currently operational, under construction, and in advanced planning.

Purpose of the Study:

• To highlight the technological capabilities and potential of Concentrating Solar Thermal Power (CSP) for electricity generation.
• To discuss the integration of CSP with thermal energy storage for demand-driven power supply.
• To outline the future competitiveness and strategic initiatives for CSP deployment.

Main Methods:

• Analysis of operational data and technological advancements in CSP plants.
• Evaluation of thermodynamic cycles (steam and gas turbines) for electricity generation up to 1000°C.
• Assessment of co-generation applications, including desalination and process heat.

Main Results:

• CSP plants can reach temperatures up to 1000°C, producing steam or hot gas for power cycles.
• Electricity generation from CSP is currently more expensive than wind or photovoltaics but offers higher value due to its dispatchability.
• Significant global capacity is operational, under construction, and planned, indicating strong industry interest.

Conclusions:

• CSP, especially with thermal energy storage, is crucial for renewable energy provision, offering reliable, on-demand electricity.
• Technological innovations, mass production, and increased plant scale are key to making CSP competitive with conventional mid-load power plants within 10-15 years.
• Initiatives like DESERTEC underscore the strategic importance of CSP for future European energy and resource security.