The importance and benefits of DC appliances have been clearly brought out in the past articles. Energy efficiency is a low hanging fruit and this has to be deployed in a big way and both state and central governments have to give a major thrust for this along with encouragement of renewable energy in a big way. The idea can be successfully exploited inn roof top solar systems and other forms of green energy such as Micro Wind, PICO Hydel and Bio mass/gas generation systems. Depending on the local availability of resources many of these forms of renewable energy can be brought together using a smart micro grid system for individual buildings. The following graphics explains this concept in a pictorial manner.
In the above schematic different forms of renewable energy sources are coupled together in a smart micro grid. iGrid takes inputs from several of them like Solar Panels, Rooftop Micro Wind, PICO Hydel, Biogas generation system and the electricity grid.