Because of the multiscale nature (ions are much smaller than colloidal particles), the cost of simulating colloidal electrolytes is prohibitively expensive. On the other hand, coarse-grained methods that completely remove ions, while faster, are necessarily unable to describe ionic transport. We are currently developing intermediate coarse-grained methodologies that avoid the computational cost of explicitly representing individual charges while still accounting for their effects on ionic double layers at interfaces and the electroosmotic flows they generate. We then use these fast, yet accurate, simulation tools to investigate the fundamental electrokinetics of colloidal soft materials, enabling more rational design of sustainable energy technologies.