Energy storage allows us to synchronize energy supply (whether from a renewable resource or a vehicle charging station) and energy demand. The development of future storage technologies requires an understanding the dynamics of energy consumption. Here we analyze energy consumption in order to determine lab-scale performance targets for storage technologies.
Design rules for electric vehicle batteries: By studying patterns of travel and energy consumption in the transportation sector, we are identifying requirements for electric vehicle batteries. In addition, we have uncovered several surprising patterns in commuting across cities of various sizes, shown in Figure 1.
Stationary, large-scale energy storage optimization: We are studying patterns of electricity consumption and comparing them to changes in solar and wind availability throughout the day (Figure 2). From this analysis we are able to identify optimal properties for future storage materials and devices, and compare current technologies to these performance targets.
- Braff, W. A., Trancik, J. E., Guidelines for Stationary Energy Storage Technology Development, in final preparation for submission.