Yes these prices are for real!
If you read the 'about Ebico' and 'ethos' sections on their website it explains why they are different to the 'big boys' out there.
Have you tried their gas and electric price comparison tool on their website? All you need to do is enter the kWh's from your last bills with your current supplier and it will tell you how much they would have charged you. For the electric, you need to select which area you are in first.
Don't be put off that you have never heard of Ebico before, their supply partner is the Scottish and Southern Energy Group who handle all the billing, customer service, etc and Scottish and Southern according to Energywatch regularly score highly for customer satisfaction, etc.
Hope this helps save you some money!?