Urban development plan Supply & Disposal 1999

Explanations to the maps

General remarks

The maps give a general idea of the main urban networks for the individual kinds of supply and disposal, the cross linking of the factories, facilities and stations, as well as the integration of Berlin into supra-regional interconnections. In co-ordination with the utility companies the maps were drawn up to represent sites relevant for urban planning, showing the main networks, supply areas and catchment areas etc. The maps themselves are presented in the 1: 50.000 scale. The locations and areas are shown in block-sharp and boundary-sharp manner. According to the purpose of the urban development planning, the mains and pipes are assigned as exactly as possible to roads, blocks and facility locations. But saying that the maps are not accurate enough to derive a precise position.

The survey maps and partial maps of the UDP supply and disposal do not contain any information about pipe cross-sections and the connection capabilities of plots of lands (allotments), areas and sub-areas, onto the networks and facilities of the technical infrastructure. The respective utility companies are responsible for and have to be consulted over content related issues pertaining to supply of resources and waste disposal.

The representation of the topography for the Brandenburg surrounding area of Berlin is limited to waters, lakes, railway lines, main roads and motorways. Built up areas including rural communities, districts and the municipality boundaries are represented in a simplified way.

This is to help orientation and general localisation of technical infrastructure plants. In contrast with the printed versions, the abundance of optical information on the maps of Internet versions leads to a partial restriction of the rapid intuitive grasp of the information.

In order to counteract this tendency, suitable display areas are defined according to the supply type. The maps are darkened outside the boundaries of the display areas with translucent coverings. The display areas shown can be town districts, trade centres or residential areas etc. The type is indicated in the key at the edge of the map.

Map gas supply

The map shows the main gas network of the utility company GASAG (Berlin gas company). This network guarantees the stable supply of gas to all parts of city and to all points of maximum need. It gives an idea of the joining of the installations and stations as well as the integration of Berlin into the regional natural gas interconnection.

Integration of Berlin into the regional natural gas interconnection (State of 6/97)

This regional network is integrated into the European interconnection and so dimensioned that the required gas quantity for the city is available at any time. This is achieved through the outer Berlin natural gas ring in connection with the subsoil storage depots at Buchholz and Ketzin, which are directly situated before the city gates of Berlin. The present Berlin gas supply map contains for reasons of the city-structural relevance and clarity, only the interconnection lines and the high- and medium- pressure gas pipes of the utility company GASAG. The built up areas of the city are almost entirely outfitted with low pressure networks and are shown in green on the map.

The GASAG network supplied at the end of 1996, 122,000 houses with gas and has an overall length of 6.590 km. From this 700 km of pipes are high pressure , 185 km medium pressure and 5.700 km low pressure. Added to this are two central reduction and distribution stations as well as 208 pressure regulator installations, which build the links between different pressure stages.

Since 1960 the eastern part of the city is connected by the transfer stations Schönerlinde, Blumberg, Vogelsdorf and Waltersdorf to the supra-regional network of the Verbundnetz-Gas-AG (Interconnection gas limited company). From which the natural gas is injected directly through several pipelines into the spatially good intermeshed high pressure network. This 6-bar-high pressure network has to be improved step by step into higher operational pressures (10 to 16 bar). This will mean that sufficient gas is available for the differing levels of demand. Also the low pressure net will be redeveloped step by step increasing the pressure to a medium level, thus meeting the increasing demand for gas. A pronounced medium pressure network for the spacious distribution of gas in the eastern part of the city does not exist.

Since 1985 the western part of the city is supplied with Siberian natural gas through a separate pipeline from Russia via Czech Republic. The transfer station Buckow is the starting point of an intra-urban high pressure transport pipeline to the Berlin subsoil storage depot tank and to the two reduction and distribution stations in Mariendorf and Charlottenburg. The gas is from these locations distributed in a radial pattern into the high, medium and low pressure networks.

The Berlin subsoil storage depot in Glockenturm street is the element with central importance for the gas supply of the whole city. It had a storage capacity in 1995 able to cover the needs of the city for a six month period. It serves the purposes of covering the seasonal variation in demand, for an economical network operation and as a medium sized emergency reserve. The entire network operation in Berlin is controlled from this location.

Since 1994/95 three high pressure pipelines connect the eastern and the western networks. These are used in conjunction with a high and medium pressure connection between the two reduction and distribution stations. This results in a flexible natural gas supply from the storage depots as well as from the interconnection.