Friday, April 30, 2010

Standardisation of Data and Technology for Smart Grid

Thanks in part to the government stimulus money with mandated time limits, and other "green" incentives, the implementations of facility BMS, EMS, GIS, DGPS Survey for data and smart meter projects are proceeding full speed ahead and damn any standards that get in the way.

There are many diverse aspects to the smart grid but one of the most intriguing is the application of intelligence to the transmission and distribution grid itself, all the way from the long distance transmission lines, to the local substations, distribution lines and ultimately the (smart) meters.  The upgrade of the grid is not so much in the transmission and distribution equipment itself which but rather in the overlaying of an intelligent network that aggregates data from across the grid to enable the utilities to better manage the transmission and distribution functions, localize and isolate faults and integrate renewable power sources while preserving the stability and reliability of the grid.

Data is another area of serious concern.Utilities have either not maintained this data and/ or were not following standards for the maintenance of engineering records. They now look at field surveyors to provide the accurate engg. records (in fact better than elec. engg could do). Surveyors have their own concepts of accuracy and correctness. GIS and GPS technology is applied in a very fashionable /casual way without understanding the business requirements and processes. Most of these initiatives are tailormade to consume a particular product and heavily influenced by the vendors. Once initiated in one country these projects are replicated blindly elsewhere and spread like a disease. Ex. a classic case of vendor agent driven misguided utilities in some Gulf countries: few utilities started countrywide geophysical survey  (GPR and cable tracing) of  buried utilities to map their electrical network for GIS database updation and pilot failed. No lessons learned. Then they went ahead with another project for DGPS survey  (20 cm accuracy) of utilities in open trench condition to create the GIS database of utility network.  An exercise that guarantees CM level accuracy. How will you accommodate this level of accuracy in a complex network of cables in an urban environment? What is the use of such a high accuracy where everyone feels the existing procedure of as-built preparation is more than enough, if followed  properly ? Practice of precision surveys is neither required nor sustainable for any utility where hundreds of changes occur on daily basis. An standardized work flow for the creation of as-built, its submission and entry into GIS would be enough to maintain the sanctity of the engineering records and serve the purpose of O&M staff.

This same issue of interoperability will be critical to the smart grid as it moves out of the realm of isolated pilot programs and demonstration projects to a more ubiquitous presence. As in the case of cellular networks (or any networks), there are going to be a wide variety of equipment providers involved in the smart grid.  Within an individual service area, the utility may choose to work with multiple vendors in order to mitigate both technical and commercial risk.  In order to maximize the value of the smart grid, it will be necessary to enable the utilities to have a homogeneous view of this heterogeneous network.

Standardization of business processes is more important than the technology implementation to justify the RoI. Vendors should never dictate the way things should move. Now we see a lot of RFPs and projects where you can easily see that "Failure " is in-built in the form of vague SoW, no standards for data  and technology and irrational timelines. Technology should be used to facilitate the implementation in a phased manner and thus the standards will be defined by the experts and not by the agents of vendors who are interested only in selling their products.

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