(19)

(11)

EP 2 414 790 A1

(12)

(43) Date of publication: 08.02.2012 Bulletin 2012/06 (21) Application number: 10719039.9 (22) Date of filing: 30.03.2010

(51) International Patent Classification (IPC):  G01F 15/06(2006.01) (86) International application number: PCT/GB2010/050544 (87) International publication number: WO 2010/112916 (07.10.2010 Gazette 2010/40)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 01.04.2009 GB 0905653 (71) Applicant: Navetas Energy Management Limited Woodbridge, Suffolk IP12 1BL (GB)	(72) Inventor: ROWE, Paul, Richard Suffolk IP11 0YW (GB) (74) Representative: Jackson, Nicholas Andrew et al Dummett Copp LLP 25 The Square Martlesham Heath GB-Ipswich, Suffolk IP5 3SL GB-Ipswich, Suffolk IP5 3SL (GB)