During the initial years of Gasunie’s existence, the early 60’s, a projection was made for the power required in various compressorstations in the grid. This projection was updated periodically and this paper reviews the 1977 update, focussing on the Ravenstein compressorstation. The main subject of the paper is the development of the design criteria for this update and the comparison with the reality of the 1979/1980 pumping season. It may be stated that the actual conditions of the pumping season have justified the selection of the criteria.

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