I understand Waterpower are not taking in new customers but I was lucky enough to sign up in late August.
My 24-hour unit rate has been (VAT-exclusive)
September: 26.51c
October: 25.09c
November: 25.25c
December: 20.72c
Urban daily standing charge is 65c excluding VAT.
From what I can tell the best VAT-exclusive unit price from other suppliers is about 26c.
That is certainly very true for 24 hour rates, and you did very well getting signed up,
but it gets much less clear cut, with smart meter rates which can be similar, and even lower, most suitable for households who can make the most of cheaper night rates.
take Energia “Smart Drive” pricing since October last,
existing customers can get an increased 20 % discount, which brought the ex vat day rate to 31.60 c, the 4 hour night period to 7.04 c. If one could divert 50 % of usage to that 4 hour charging, and in my household this could be done, the blended rate is 19.32 ex vat.
Plus, Energia are very likely, to announce a price reduction, any day now. Their smart
Meter standing charge per day is 59.47 c ex vat, and pay 24 c for export.
Pinergy also have a Lifestyle Cooline smart meter tarriff, which has an ex vat 3 hour night rate ex vat of 4.6 c, rest of time is 37.97, but this can be a very useful, for households with solar PV & battery storage, as Pinergy pay 25 c ex vat, for export
Standing charge is 71.25 c per day ex vat, but there is a €100 signup credit.
pinergy.ie
Depends on your individual usage of course, so one has to run the numbers and have accurate usage data, but for households with Electric cars, a heat pump, and timers on appliances, it is achievable.