1. Swarthmore College, Swarthmore, Pennsylvania 19081, United States
2. Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, California 90089, United States
3. National Renewable Energy Laboratory, Golden, Colorado 80401, United States
4. Colorado School of Mines, Golden, Colorado 80401, United States
5. Electric Power Research Institute, Palo Alto, California 94304, United States
6. Salt River Project, Tempe, Arizona 85281, United States
7. Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States