National Renewable Energy Laboratory, National Renewable Energy Laboratory, National Renewable Energy Laboratory, National Renewable Energy Laboratory, National Laboratory of the Rockies, National Renewable Energy Laboratory, National Renewable Energy Laboratory, National Renewable Energy Laboratory, National Renewable Energy Laboratory, National Renewable Energy Laboratory, National Renewable Energy Laboratory, National Renewable Energy Laboratory, Government of the United States of America - Argonne National Laboratory, Government of the United States of America - Argonne National Laboratory, Government of the United States of America - Argonne National Laboratory, University of California, Berkeley - Lawrence Berkeley National Laboratory (Berkeley Lab), University of California, Berkeley - Lawrence Berkeley National Laboratory (Berkeley Lab) and Government of the United States of America - Oak Ridge National Laboratory