Solar Smart Grid in Unelectrified Village

Government announce various schemes to provide continuous power supply to rural India. Still, hundreds of villages use chimney lamps. ‘Electrified’ villages still waiting for power. In many villages, electricity poles have been installed, but lines have not been laid. In order to improve energy security in such places  we need “DC Solar Micro Grid” for providing free electricity which will be free upto a particular limit and then chargeable. Energy is a strategic research priority and we must be committed to deliver solutions to the global energy challenge.

Smart Grids is a broad concept that covers the entire electricity supply chain and is characterized by the use of technologies to intelligently integrate the generation, transmission and consumption of electricity. We define the concept of Smart Grids as one that embraces all measures in support of immediate and future integration of automation and control technologies into local, national or regional electricity infrastructure. The concept aims to optimize grid systems and their operation, integrate high levels of renewable energy penetration, and improve the reliability and efficiency of electricity supply. In addition to being smart, this system guarantees access to modern energy services without marginalizing the poor.

Concept :
The concept aims to optimize grid systems and their operation, integrate high levels of renewable energy penetration, and improve the reliability and efficiency of electricity supply. In addition to being smart, effective and economical measures will be taken in order to guarantee access to modern energy services without marginalizing the poor.

Applying the Concept :

Distribution Design : Distribution using smart sensors, flexible and intelligent switches and interrupters at critical points on distribution circuits will minimize the extent of outages and increase the speed of restoration, while keeping cost increases at a minimum. Smart distribution technologies will be especially important for addressing rural electrification needs and minimize connection costs.

DC Micro Grid : Cost is further reduce through the implementation of (DC) micro‐grids. While losses can be reduced through saving layers of DC/AC power conversion, the more expensive protective devices required for fault management and control, such as coordinated power converters, add complexity and outweigh some of the potential savings.

Demand Side Management : This usually affects the poorest electricity consumers the most. The DC load such as LED Bulb, LED Tube, DC Fan, DC TV each with 12V rating will be used which is of lower wattage rating, thus reducing the demand. This could also encourage people to adopt energy efficient practices for peak times, either because of higher tariffs or dependency on batteries.

Charging Through Prepaid System : While rural electrification is a priority, millions of people live near the grid but cannot afford a connection. For these people, charging stations ensure a minimum level of access to electricity services. For eg. Anyone can got to the recharge shop and ask for electricity and can buy it if its free daily consumption is over.