Efficient transmission and distribution of electricity is a fundamental requirement for providing citizens, societies and economies with essential energy resources.
Today, the electricity supply industry is wrestling with an unprecedented array of challenges, ranging from a supply-demand gap to rising costs and global warming. Electricity networks have been set up across the western world to provide vital links between electricity producers and consumers and have been very successful for many decades.
The drive now is for lower-carbon generation technologies, combined with greatly improved efficiency on the demand side. More interactive and customer-centric networks are the way ahead and these fundamental changes will impact significantly on network design and control.
In this context, the European Technology Platform (ETP) SmartGrids was set up in 2005 to create a joint vision for the European networks of 2020 and beyond.
The SmartGrids' vision is about a bold programme of research, development and demonstration that charts a course towards an electricity supply network that meets the needs of future through:
• Flexiblility:fulfilling customers’ needs whilst responding to the changes and challenges ahead;
• Accessiblility: granting connection access to all network users, particularly for renewable power sources and high efficiency local generation with zero or low carbon emissions;
• Reliability: assuring and improving security and quality of supply, consistent with the demands of the digital age with resilience to hazards and uncertainties;
• Economic viability: providing best value through innovation, efficient energy management and ‘level playing field’ competition and regulation.
Although there is no standard global definition, ETP defines smart grids as electricity networks that can intelligently integrate the behaviour and actions of all users connected to it - generators, consumers and those that do both – in order to efficiently deliver sustainable, economic and secure electricity supplies.
A smart grid includes an intelligent monitoring & control system along with communication, and self-healing technologies that keeps track of all electricity flowing in the system. It also incorporates the use of superconductive transmission lines for reduced power loss, as well as the capability of integrating renewable
electricity such as solar and wind. When power is least expensive the user can allow the smart grid to turn on selected home appliances such as washing machines or factory processes that can run at arbitrary hours. At peak times it could turn off selected appliances to reduce demand.
Thus smart grids
* Better facilitate the connection and operation of generators of all sizes and technologies;
* Allow consumers to play a part in optimising the operation of the system;
* Provide consumers with greater information and options for choice of supply;
* Significantly reduce the environmental impact of the whole electricity supply system;
* Maintain or even improve the existing high levels of system reliability, quality and security of supply;
* Maintain and improve the existing services efficiently;
* Foster market integration towards European integrated market.
Smart grids not only supply power but also information and intelligence. The “smartness” is manifested in making better use of technologies and solutions to better plan and run existing electricity grids, to intelligently control generation and to enable new energy services and energy efficiency improvements.
India has limited experience with smart grid deployments and advanced metering, especially for small consumers and farmers. Key factors that will drive the adoption of the smart grid in India are:
Supply shortfalls: According to some official estimates, India suffers with a significant shortfall of 12% for total energy and 16% for peak demand. Demand
continues to outpace India’s power supply. and managing growth and ensuring supply is a major driver for all programs of the Indian power sector.
Loss reduction: India’s aggregate technical and commercial losses are thought to be about 25-30%, but could be higher given the substantial fraction of the population that is not metered and the lack of transparency.
Managing “human interface”: in system operations through automated meter readings thereby reducing accidental and deliberate errors, which are thought to be significant reasons for losses.
Peak load management: through more “intelligent” load control, either through direct control or economic pricing incentives that are communicated to customers in a dynamic manner. Such measures would help mitigate the supply-demand gap.
Renewable energy: India has mostly supported the implementation of renewable energy for wind power, but the newly announced National Solar Mission and its goal to add 20,000 MW of solar energy by 2020 along with environmental concerns and the desire to tap into all available sources of power can also be a accelerant for development of smart grid.
Technological capabilities: Just as India became a hot bed for telecom sector advancements and consumption, India can very well leapfrog into a new future for
electricity. Also, the “smart” in a smart grid is ICT — an area of unique capability in India.
India’s electric power delivery system is much like the telecommunications network of the past – dated and increasingly costly for consumers. Like the
telecommunications revolution, which created new technologies, choices and improved service levels, there is a need for a similar revolution in the power sector.
Being a highly regulated sector, regulatory intervention is imperative for successful smart grid implementation across the key areas of Funding,Consumer
awareness,Establishing common standards,Playing the role of a “watchdog”,Cyber-security and Interoperability.
As India continues to develop the smart grid, communication will play an ever-larger role in the power sector. It might be advantageous to encourage close coordination between the telecommunication and power sectors, with the participation of policy makers and regulators.
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