Heliostat concentration boosted by shape-shifting glass

By manipulating the shape of heliostats in real time, the optical efficiency of solar fields for tower CSP can be significantly increased, according to a paper presented at the New Mexico SolarPACES Conference: Heliostat with Automatic Shape Adjustment for High Concentration Throughout the Day, presented Read More …

$30 million in DOE funding for solar thermal fuel, heat, or storage

The U.S. Department of Energy (DOE) Solar Energy Technologies Office (SETO) announced the Solar-thermal Fuels and Thermal Energy Storage Via Concentrated Solar-thermal Energy funding opportunity, which will award $30 million for projects to produce fuels via renewable energy resources and improve thermal energy storage technologies. Read More …

Published at Next Energy – Direct solar-driven thermochemical CO2-to-fuel conversion with efficiency over 39 % employing hierarchical triply periodic minimal surfaces biomimetic foam reactors

Abstract: Solar-driven CO2 reforming of CH4 is considered a promising approach for achieving CO2 emission reduction and clean energy utilization simultaneously. However, reactors suffer from uneven temperature distribution and severe carbon deposition, leading to low solar-to-fuel efficiency. This study introduces a novel strategy for highly Read More …

Published at Energy Conversion and Management – Selection of iron-based oxygen carriers for two-step solar thermochemical splitting of carbon dioxide

Abstract: The two-step solar thermochemical cycle is a prospective clean energy technology that enables the direct splitting of water and carbon dioxide for solar fuel production. However, immature oxygen carriers fundamentally restrict the solar-to-fuel conversion efficiency and thus prevent this technology from immediate industrial uptake. Read More …

Published at Energy Conversion and Management – Structural stabilization of granular Ca(OH)2 by coating with nanostructured additives for thermochemical cycling in a fixed reaction bed

Abstract: Thermochemical energy storage systems have a high potential to support a future energy supply based on renewables by providing comparably high storage capacities and option for long-term, cold and loss free storage, that allows a flexible utilization in several application areas. Due to its Read More …

How can Synhelion’s solar receiver achieve such high temperatures?

Synhelion’s solar receiver achieves a temperature of 1,500°C and higher. That’s unprecedented. Even the Gen3 particle-based solar receiver being pilot-scale tested now at Sandia – and the DLR CentRec receiver licensed to Heliogen – operate at the (relatively!) lower temperature of 1,000°C. One of Synhelion’s Read More …

Published – Technical, economic and environmental analysis of solar thermochemical production of drop-in fuels

Abstract: This study analyzes the technical performance, costs and life-cycle greenhouse gas (GHG) emissions of the production of various fuels using air-captured water and CO2, and concentrated solar energy as the source of high-temperature process heat. The solar thermochemical fuel production pathway utilizes a ceria-based Read More …

Tour Gen-3 solar receivers at the 29th SolarPACES Conference in October

Tour the pilot-scale sodium receiver and falling curtain particle receiver in Australia During the 29th SolarPACES Conference, a day trip from Sydney will take you on a Technical Tour of the CSIRO National Solar Energy Centre at Newcastle, where the working of two gen-3 receivers Read More …

Published at Chemistry of Materials – Synthesis and Structural Study of Substituted Ternary Nitrides for Ammonia Production

Abstract: Over the past few decades, inorganic nitride materials have grown in importance in part due to their potential as catalysts for the synthesis of NH3, a key ingredient in fertilizer and precursor to industrial chemicals. Of particular interest are the ternary (ABN) or higher-order Read More …

Sandia’s green ammonia research matters for a global shipping future

Green ammonia could be made sustainably using solar thermochemistry instead of the way it is made today in the fossil-fueled Haber-Bosch process, which taps fossil energy for the thermochemistry and the heat and the high pressure it requires, while emitting almost three tons of CO2 Read More …

Published at Chemical Engineering – Calcium-based composites directly irradiated by solar spectrum for thermochemical energy storage

Abstract The optical absorptance of calcium-based composites used in direct solar-driven calcium-looping thermochemical energy storage systems should be improved. Experimental data obtained by thermogravimetric analyzer (TGA) cannot adequately describe the realistic performance of such calcium-based composites. In this work, calcium-based composites filled in a fixed Read More …

US DOE funds Synhelion to scale up its solar thermal hydrogen

Solar hydrogen is a component of the thermochemical solar fuels that Synhelion is developing commercially, such as aviation fuel The solar thermal green hydrogen technology beginning to be commercialized by Synhelion has now received a nod from the US DOE with funding announced today: Press Read More …

How solar fuels work: thermochemistry

Solar fuels are made using thermochemistry driven by direct heat from the sun Solar thermochemistry is a process in which solar thermal energy drives chemical reactions to produce new compounds such as aviation fuel. Highly concentrated solar heat is reflected off thousands of mirrors in Read More …

Published at Applied Catalysis – Structured sulphur trioxide splitting catalytic systems and allothermally-heated reactors for the implementation of Sulphur-based thermochemical cycles via a centrifugal solar particle receiver

Abstract: Catalytic sulphur trioxide splitting is the highest-temperature (850–900 °C), endothermic step of several sulphur-based thermochemical cycles targeted to production of hydrogen or solid sulphur. The demonstrated capability of centrifugal particle solar receivers of heating particle streams at such temperatures, can allow for “allothermal” implementation of Read More …

Published at Journal of Energy Storage – Self-assembly CuO surface decorated with NiAl2O4 for high-temperature thermochemical energy storage: Excellent performance and strong interaction mechanism

Abstract: High-temperature thermochemical energy storage materials with high energy density is the key technical support for the third generation concentrated solar power plants equipped with advanced energy storage system. CuO/Cu2O redox couple is one of the most promising systems due to its low cost and Read More …

Published at Solar Energy-Potential of solar thermochemical water-splitting cycles – A review

Abstract: Hydrogen fuel is a valuable tool to achieve the energy transition process, and according to the 2050 net zero emissions scenario its demand is expected to increase by more than 530 Mt H2. This article discusses several routes available to produce hydrogen fuel, with Read More …

Published at ACS – Synthesis, Experimental, and Theoretical Study of Co3–xNixO4 Mixed Oxides: Potential Candidates for Hydrogen Production via Solar Redox Cycles

Abstract: Recently, green hydrogen production via solar thermochemical water splitting (STWS) as a clean and sustainable method is becoming a subject of interest to many researchers. Great efforts are being made to develop materials for STWS with suitable operating conditions, low cost, and good cycling Read More …

Published at Sustainable Energy & Fuels – Kinetic investigation of solar chemical looping reforming of methane over Ni–CeO2 at low temperature

Abstract: Leveraging solar thermal energy to drive the chemical looping reforming of methane (CLRM) is a promising method of efficiently and selectively reforming methane to produce syngas using renewable energy. In this work, the role of catalytically active nickel in reaction kinetics, conversion, selectivity, and Read More …

Computational fluid dynamics study of hydrogen production using concentrated solar radiation as a heat source

Published in the January Issue of Energy Conversion and Management Abstract The purpose of this paper is to study the performance of the steam methane reformer (SMR) using solar energy as a heat source using a computational fluid dynamics (CFD) model. An analysis of the Read More …

Synhelion produces first solar syngas in Wood’s industrial-scale reforming reactor

Press Release: Paving the way for solar fuels: Jülich, Germany, August 18, 2022 Synhelion has become the first company in the world to succeed in producing syngas on an industrial scale using only solar heat as an energy source. The Swiss solar fuel pioneer successfully Read More …

“Sun-to-Liquids” Solar Fuels R&D Wins Recognition at Cop26

The Sun-to-Liquids project has been developed by a consortium integrated by the leading European solar research laboratories and CSP industry leaders: ETH Zurich, DLR, Bauhaus Luftfahrt, IMDEA Energy, HyGear Technology & Services B.V and Abengoa. The aim is to produce renewable transportation fuels from water Read More …

Submit Papers on Solar Thermochemical Innovations to “Energies” Special Issue by Sept 1

The scientific journal ‘Energies’ is arranging a Special Issue on ‘Solar Thermochemical Production of Material Commodities’ with a deadline for submissions on 1 September, 2021. We, as guest editors, are pleased to invite you to submit high-quality unpublished contributions on recent advances in applications of Read More …

Could a Perovskite make Cheaper Solar Hydrogen?

A perovskite may be more cost-effective than ceria for solar-driven thermochemical hydrogen production, a new paper suggests. One perovskite formulation that works at a slightly lower temperature than ceria is explored by Xin Qian in the paper Outstanding Properties and Performance of CaTi0.5Mn0.5O3–d for Solar-Driven Read More …

To Make Green Ammonia, US Researchers Design a Novel Solar Process

  As a vital component of fertilizers, ammonia (NH3) is the second most-produced industrial chemical in the world. Annual production is around 180 million metric tons and almost 90% of this production goes to meet the global demand for agricultural production. Ammonia is also increasingly Read More …

Making Solar Hydrogen with a Side of Carbon Nanotubes

Two teams of solar researchers have developed a novel solar reactor and thermochemical process for making solar hydrogen that can generate in addition carbon black and graphite as well as carbon nanotubes. Working over a six-year period, the teams first developed the specific solar reactor, Read More …

How Much Land Would Solar Thermochemistry Need to make All Our Aviation Fuel?

If one “solar refinery” manufactured all the aviation fuel needed for the entire world from CO2+H2O captured from air using solar energy – all in just one site, the solar field would stretch for example, from Paraburdoo to Capricorn in the Western Australian desert Read More …

Scientists Test World’s First Solar Fuels Reactor for Night

International solar thermal energy researchers have successfully tested CONTISOL, a solar reactor that runs on air, able to make any solar fuel like hydrogen and to run day or night – because it uses concentrated solar power (CSP) and includes thermal energy storage. The promise Read More …

Current Job Openings in CSP Research and on CSP Projects

September 2023 Manager, Solar Thermal Testing and Demonstration We are seeking a highly motivated manager to lead the Solar Thermal Testing & Demonstration Department within the Renewable Energy Technologies Group (Org 8920). The Group conducts fundamental and applied R&D to improve performance, efficiency, and cost-effectiveness Read More …

Thermal Energy Storage Working Group

Thermal Energy Storage Working Group

Thermal Energy Storage Working Group General Coordination: Esther Rojas, CIEMAT, Spain Objective Promoting collaboration on Thermal Energy Storage (TES) to improve its reliability, integration on CSP plants and to develop a common language. If you are willing to participate in any of the following Activity lines, Read More …

Australia

Latest in Development: 2023 Vast Solar 30 MW CST (solar fuels production) Latest Online: 2016 Sundrop Farms 36 MW CST: SolarPACES-NREL database: All plant details on this CSP project The Sundrop project uses tower CSP for onsite greenhouse agricultural production since 2016. CSP for electricity Read More …

About SolarPACES

About SolarPACES

SolarPACES (Solar Power and Chemical Energy Systems) SolarPACES.org is the international network of researchers in concentrating solar power (CSP) refining a form of solar power that is dispatchable on demand because it includes thermal energy storage. The organization began in 1977 and today is increasingly Read More …