see this link

http://www.greentechmedia.com/articles/read/Southern-California-Edisons-Grand-Software-Plan-is-a-System-of-Systems-at

Distributed generation, also distributed energy, on-site generation (OSG) or district/decentralized energy is generated or stored by a variety of small, grid-connected devices referred to as distributed energy resources (DER) or distributed energy resource systems.

https://en.wikipedia.org/wiki/Distributed_generation

here you are the following paper to introduce the DG to you

Hi , distributed generation , energy supply joint clean energy sources such as sunlight and wind.With distributed generation , energy management and energy in excess of the required subscriber can inject into the network .Drsaat consumption and production management and process monitoring usage monitor

hi

DG is making electricity from Small source of energy.electricity is produced in place Consumption.

hi

at this time is good for human

Distributed Generation (DG) is the generation of electricity at or close to its use. DG has been used for decades for emergency power in many commercial buildings, by some large commercial establishments like hospitals and colleges and by large industrial companies in certain industries (e.g., pulp and paper, chemical industries). Generators usually run on natural gas, gasoline or diesel fuel; however, green sources like methane from biomass can be used and solar energy is the energy source for photovoltaic systems.

Hi

I think wikipedia have A good description

please see this

https://www.google.nl/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjWmp2y6oHPAhWJvRoKHcPqApoQFgghMAA&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FDistributed_generation&usg=AFQjCNH3FHfDh5UBS_TXBw-hWVr8Bhzh8Q&bvm=bv.131783435,d.d2s

Hi

Distributed generation, also distributed energy, on-site generation (OSG) or district/decentralized energy is generated or stored by a variety of small, grid-connected devices referred to as distributed energy resources (DER) or distributed energy resource systems.

Conventional power stations, such as coal-fired, gas and nuclear powered plants, as well as hydroelectric dams and large-scale solar power stations, are centralized and often require electricity to be transmitted over long distances. By contrast, DER systems are decentralized, modular and more flexible technologies, that are located close to the load they serve, albeit having capacities of only 10 megawatts (MW) or less. These systems can comprise of multiple generation and storage components. In this instance they are referred to as Hybrid power systems.

see this link

http://www.greentechmedia.com/articles/read/Southern-California-Edisons-Grand-Software-Plan-is-a-System-of-Systems-at