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SolarPACES 2025 Conference Set to Take Place in Spain: A Global Forum for Concentrated Solar Power Innovation

SolarPACES 2025 Conference Set to Take Place in Spain

The 31st SolarPACES (Solar Power and Chemical Energy Systems) International Conference is set to take place in Almería, Spain, from September 23–26, 2025. As one of the most prestigious global events dedicated to concentrating solar power (CSP) and solar thermal energy, SolarPACES 2025 will bring together leading researchers, industry experts, policymakers, and stakeholders to discuss the latest advancements, challenges, and opportunities in the field of solar energy. Hosted in a region renowned for its solar research infrastructure and commitment to renewable energy, the conference promises to be a landmark event in the global transition toward a decarbonized energy future.

Why Almería, Spain?

A Hub for Solar Innovation

Almería is home to the Plataforma Solar de Almería (PSA), the largest research, development, and testing center dedicated to concentrating solar technologies in Europe. Operated by CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas), PSA has been at the forefront of solar thermal research since its establishment in the 1980s. The region’s high solar irradiance and robust infrastructure make it an ideal location for hosting SolarPACES 2025.

Historical Significance in Solar Research

Spain has long been a pioneer in CSP technology. The country was among the first to deploy commercial-scale CSP plants, such as the PS10 and PS20 towers near Seville. These projects demonstrated the viability of solar thermal power generation and helped catalyze global interest in CSP. Hosting SolarPACES 2025 in Spain underscores the nation’s continued leadership in renewable energy innovation.

Conference Themes and Objectives

According to the official invitation from the Conference Chair, the 2025 edition of SolarPACES will focus on the critical role of solar thermal energy in achieving full decarbonization of the energy sector. With two-thirds of global energy demand attributed to heat and one-third to electricity, CSP and solar thermal technologies are uniquely positioned to address both sectors simultaneously.

Key Themes

Advancements in CSP technologies and hybrid systems
Thermal energy storage and grid integration
Solar fuels and thermochemical processes
Industrial process heat and decarbonization strategies
Policy frameworks and market development
International collaboration and technology transfer

Conference Goals

Showcase cutting-edge research and development in CSP and solar thermal energy
Foster collaboration between academia, industry, and government
Promote the deployment of solar thermal technologies in emerging markets
Address barriers to commercialization and scale-up
Highlight the role of CSP in achieving net-zero emissions

Global Context: The Role of CSP in Decarbonization

Meeting the Heat Demand

Globally, approximately 66% of final energy consumption is used for heating purposes—ranging from residential heating to industrial process heat. Unlike photovoltaic (PV) systems that primarily generate electricity, CSP systems can produce high-temperature heat, making them ideal for industrial applications such as desalination, chemical production, and metallurgy.

Electricity Generation and Grid Stability

CSP plants equipped with thermal energy storage (TES) can provide dispatchable electricity, addressing one of the key limitations of intermittent renewable sources like wind and PV. For example, molten salt storage systems allow CSP plants to generate electricity even after sunset, enhancing grid reliability and reducing dependence on fossil fuel-based peaker plants.

Case Study: Noor Ouarzazate Solar Complex, Morocco

The Noor Ouarzazate complex in Morocco is one of the world’s largest CSP installations, with a total capacity of over 500 MW. The facility includes parabolic trough and solar tower technologies, along with molten salt storage that enables up to 7 hours of electricity generation after sunset. The project has significantly reduced Morocco’s reliance on imported fossil fuels and serves as a model for other countries seeking to integrate CSP into their energy mix.

Technological Innovations to Be Showcased

Next-Generation CSP Systems

SolarPACES 2025 will feature presentations on next-generation CSP systems that aim to improve efficiency, reduce costs, and expand applicability. Innovations include:

High-temperature receivers capable of operating above 800°C
Advanced heliostat designs for improved solar field performance
Hybrid systems combining CSP with PV or biomass

Thermal Energy Storage (TES)

TES is a cornerstone of CSP technology, enabling time-shifting of energy production. Recent advancements in phase-change materials, thermochemical storage, and high-temperature molten salts will be key topics at the conference. These innovations are critical for enhancing the economic viability and operational flexibility of CSP plants.

Solar Fuels and Thermochemical Processes

Another exciting area of focus is the production of solar fuels through thermochemical cycles. These processes use concentrated solar energy to split water or CO₂, producing hydrogen or carbon monoxide that can be used as clean fuels. Research in this domain is gaining momentum as countries seek sustainable alternatives to fossil fuels for transportation and industrial use.

Policy and Market Development

Global Policy Landscape

Despite its potential, CSP deployment has lagged behind PV and wind due to higher upfront costs and limited policy support. SolarPACES 2025 will provide a platform for policymakers to discuss strategies for leveling the playing field, including:

Feed-in tariffs and power purchase agreements (PPAs)
Carbon pricing and emissions trading schemes
Public-private partnerships and international financing mechanisms

Emerging Markets and International Collaboration

Countries in the Middle East, North Africa, and Latin America are increasingly investing in CSP due to their high solar resources and growing energy demand. The conference will highlight successful international collaborations, such as the World Bank’s MENA CSP program, which supports large-scale CSP deployment in the region.

Educational and Networking Opportunities

Workshops and Training Sessions

SolarPACES 2025 will offer a range of workshops and training sessions aimed at students, early-career researchers, and professionals. Topics will include system design, performance modeling, and techno-economic analysis. These sessions are designed to build capacity and foster the next generation of solar energy experts.</p