Head of perspective development department «Western Electric Networks» of the branch of «MRSK Ural» — «Sverdlovenergo» Alexander Pavlov of the features and order of technological connection to the urban grid.
Surveys of technological connection to power grids are now in the zone of increased attention because of the quality of the solution depends on the implementation of social and business projects. Power generation and transmission companies seek to make this process as simple and cheap. Complicating his life is that the legislation and rules of technological connection change frequently, several times a year.
However, the energy sector in the near future will see more than one edition of these rules?
Changes dictated by the major trends outlined in the «road map accessibility of energy infrastructure,» the Government of the Russian Federation. First, the procedure should be as simple as possible for all participants and implemented in optimal terms. Second, the cost of grid connection will drop. Third, temporary connection construction sites time to carry on the accelerated schedule so as not to impede the implementation of projects. Fourth, network infrastructure should be developed proactively to potential investors in the region have the opportunity to join the network in a reasonable time. And the fifth trend, which is now intensively discussed: improving the quality of grid companies. Part of the task is already being implemented, the realization of others will begin.
I will dwell on some of the nuances. Everyone knows that the scheme development of Russian cities and their power structure is very similar: each contains three major zones. The first — and the villa-cottage garden at the entrance to the city, it is low density electrical loads, the network performed by the radial principle of a single power supply. Next — a residential area of high-rise buildings punctuated by social infrastructure. Here, the network structure is quite complicated, radial network inferior looped. And the third area — the business center, where a high density of electrical loads, complex power supply scheme.
The law on technological connection of approaches to the construction of power grid facilities are built without taking into account the different characteristics of these zones in the parameters of power supply, the network structure. We have internal conflicts and inconsistencies regulations. For any area Electric Grid Company has a legally regulated timeline for the construction of facilities and should meet in six months — a year, doing the bulk of the applications for technological connection. But internal documents regulate the grid companies to carry out construction in the total mass within one to two years.
The main factors that affect the timing of technological connection?
There are several large blocks. The first — the lack of reliable information on the prospects of development of the territory. In large cities there are master plans for development of the area, the majority of small under development. But even existing master plans are usually a certain beautiful picture, which shows a promising development area and the load. Of these, Electric companies often can not obtain reliable information about the sequence in which the construction will be carried out. This step sequence matching the master plan of its realization and then violated that makes adjustments in our plans. Accordingly, we can not accurately plan network development direction. According to the general plan, the network needs to be developed in all directions, which is impossible.
The second set of factors — a long harmonization of land for construction. This is due to the fact that in the cities a lot of infrastructure. A free infrastructure areas are given to companies that sell them some of his projects. Find a comfortable area for placing objects or grid lines is problematic. Even if those sites are, there are obstacles on the part of their respective owners. They believe that the electric grid facilities will reduce the value of their land, a negative impact on the architectural plans.
The third group of issues — long-term planning. Power generation and transmission companies have a fairly short period of time to design and build a network. But design in 96% of cases is carried out contractors, which currently do not bear any responsibility for the execution of the design under the terms of the concluded contracts of technological connection. That is, the designer can afford to design a network of half a year or more. At the same time we get a large number of low-quality projects that have to be returned several times for revision.