1. Cummins, Inc., Columbus, IN (United States)
2. Univ. of Wisconsin, Madison, WI (United States)
3. Dept. of Energy (DOE), Washington DC (United States). Office of Science
4. Dept. of Energy (DOE), Washington DC (United States). Office of Energy Efficiency and Renewable Energy
5. Sandia National Lab. (SNL-CA), Livermore, CA (United States)