** Shares of clean energy technology developer Ceres Power Holdings CWR.L up 22% at 382.9p
** Stock top gainer across London stocks
** CWR announces licensing deal with its largest Chinese shareholder, Weichai Power 000338.SZ, to help power data centers
** Under deal, Weichai to manufacture Ceres' solid oxide fuel cells and stacks for stationary power systems in China
** "SOFC systems will complement Weichai's existing product portfolio for power generation, including gas engines and powertrains" - CWR
** Including session's gains, CWR's stock up ~124.21% YTD
(Reporting by Ankita Bora in Bengaluru)
((Ankita.Bora@thomsonreuters.com))