-- These projects are inactive --

In 2009, DOE announced six concentrating solar power (CSP) projects funded under the American Recovery and Reinvestment Act (ARRA) of 2009. The following projects were selected under this competitive solicitation:
- Argonne National Laboratory: Dual-Purpose Heat Transfer Fluids for CSP
- Los Alamos National Laboratory: Hybrid Organic Silicone HTF Utilizing Endothermic Chemical Reactions for Latent Heat Storage
- National Renewable Energy Laboratory: Nanomaterials for Thermal Energy Storage in CSP Plants
- Oak Ridge National Laboratory: Polyaromatic Naphthalene Derivatives as Solar Heat Transfer Fluids
- Pacific Northwest National Laboratory: Thermochemical Energy Storage for Stirling CSP Systems
- Savannah River National Laboratory: Thermally-Stable Ionic Liquid Carriers for Nanoparticle-Based Heat Transfer in CSP Applications