27 round trip commute - which bike?

Burgess123

I am going to a job where there is a 27 mile round trip commute (13.5 miles each way) and I am looking for a environmental mode of transport. I feel that the journey would take too long on my Dawes Super Galaxy tourer, also there is no shower facilities at my place of work. I was looking for a way of speeding up my commute and arriving relatively presentable. In particular I was looking at various options viz. racing bike, pedalecs, electric bikes, even electric mopeds. I was particularly interested in the Giant Twist Comfort pedalec because it seems to get good reviews. I also considered, various e-bikes. Yet what I really want to know is do these bikes really cut your commuting time? Perhaps e-bikes are better at this than pedalecs. I also don't know much about range because all manufacturers seem to be totally unrealistic, measuring the bikes on artificial smooth tracks. I do have the possibility of recharging at work though. Any opinions advice on this would be much appreciated.