I understand that the Type 26 propulsion is CODLOG - Diesel Electric with mechanical connection to the single MT30 for high speed bursts. See following blog description in Think Defence:
Type 26 Global Combat Ship (GCS) - Capabilities - Think Defence
The diesel generator propulsion is from four MTU 20V 4000 diesels with combined output of 12MW, significantly greater than that on the FREMM, and is the same configuration used on the German Type 125 which is said to make up to 20Kt just on the diesel electric alone.
The Type 45 propulsion tried to go to the bleeding edge with two WR-21 gas turbines with Northrop Grumman (NG) recuperators driving generators directly (42MW total) as integrated electric drive. There were two Wartsila diesels for ship hotel load and backup to the gas turbines. But the WR-21/NG system proved unreliable so that is why Royal Navy backed off full integrated electric drive for the Type 26 and went back to CODLOG.