Q Can I upgrade to a JAR-FCL PPL?
A Yes, up to 30 hours can be carried over as a credit towards a JAR-FCL PPL, as long as this flying training has been completed by a JAR qualified instructor and all JAR PPL exams have been passed. A further 15 hours minimum of training will be needed, of which 5 can be done in a simulator. Full details are provided in JARFCL 1.010(a).
Just bear in mind Microlight hours do not count. If you add an SSEA rating to an NPPL it must be with a JAR Instructor but will generally not take 30 hours!