The increase will be introduced as part of the venue's annual pricing review, which will come into effect from 1 April 2010.
The news will come as a surprise to some, who may have been expecting the exhibition venue to freeze its prices in line with its competitors.
Meanwhile, EC&O Venues confirmed it will be freezing its electrical prices at the 2009 rates until 1 January 2011.
Despite the rise, NEC officials are adamant their prices will still remain some 15% cheaper than other exhibition venues.
"Although we are making this necessary increase to prices, I am proud to say that we will remain considerably cheaper than our main competitors," said The NEC managing director Kathryn James.
"While some venues have announced recently that they have frozen their tariffs, they have done so only after substantial prices rises less than a year ago," she added. "At The NEC, we are dedicated to maintaining the best possible level of value for our customers, and are constantly working to develop new technologies and systems."
Read Event's story on The NEC installing Fish Software's Real Time Measurement System.
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