A progressive problem to better renewable energy grid systems is the existence of the duck-curve. This distinctively shaped curve is a phenomenon resulting from energy consumption being the highest and the beginning and the ends of any given day. Solar energy specifically has problems with these consumptive behaviors is simply that the times people want to use the energy is different from the times that it is produced. Therefore, the development of larger and larger grid depending upon solar, and other renewables, will have to overcome this problem.

A novel solution to this problem could be solved in California. This state already has policies on automakers selling cars in their state to reach specific goals of having a certain portion of their sales be of all-electric vehicles on the road in the next several decades. By 2025, 16 percent of their cars sold must be zero-emissions, with most of them being all-electric vehicles. A positive application of all-electric vehicles is that they could provide a vast energy storage options, without requiring secondary battery systems being installed to adapt to the needs of the grid during peak-consumption times. These concurrent goals of increasing the portion of the grid provided by renewable sources, as well as providing nearly 1 out of 5 cars sold in California to be mobile batteries, can solve each other. This type of innovation will aid in the global desire to have less grid reliance on non-renewable sources.