Thanks for going through the post and coming up with such a good observation. Distributed generation as the name implies, is often dispersed or stand-alone. That it is stand-alone means, it is off grid or not connected to the grid. But with the technology that comes with the smart grid, it can conveniently integrate these renewable into the centralised grid system. The communication protocols can make the communication two-way as opposed to one way communication that is previously the norm which flows from the utility to the consumer. With the active participation of the consumer, excess electricity generated from the renewables can be measured using smart meters, and be channelled to the grid thereby smoothening the demand on the power system and decongesting the grid at the same time. It is worth mentioning that these renewables fluctuate and are not steady and as such, there is a need for storage system when it is operated in off-grid mode. Once again, thanks for your patience.