** Shares of mineral explorer Rafaella Resources RFR.AX
rise as much as 14.3% to A$0.080, set for their best day since
July 27
** Co signs a non-binding memorandum of understanding (MoU)
with Spanish renewable energy developer Capital Energy Read
urn:newsml:reuters.com:*:nASX6qVPQc
** Says the MoU explores possibility of supplying green
energy to co's Santa Comba tungsten and tin project site in
Spain
** Adds MoU is a step forward in RFR's objective of
zero-carbon mine development and extends to any future projects
in Spain
** Shares hit their highest since Nov. 17
** Volumes are 6.5 times the 30-day average of 527,213
shares
** As of last close, stock down 5.4% this year
(Reporting by Himanshi Akhand in Bengaluru)
((Himanshi.Akhand@thomsonreuters.com;))