Populations in small rural villages that are too small or too dispersed for on-grid electrification can take advantage of off-grid distributed generation solutions. In Malaysian Borneo, for instance, PV-diesel hybrid systems have been developed for 63 schools that are not grid-connected. Another advantage of DES is that the construction of the system can take place in a couple of months, whereas expansions of the centralised grids to remote areas may take years and even decades.