I don't find the information about my usage very enlighting. When I use the average comparison graph I find I use half as much electricity and 20% more gas than the average despite being a medium-low consumer. The information just doesn't look right and it doesn't tell you anything. From the statement about the Department for Energy and Climate Change I guess OVO pass the responsibility for the poor data on to them. I did ask OVO about being able to download my usage data and sort out my own analysis but apparently, that feature is not available; if I want that information I have to get it manually from my bills.
I am quite interested in my energy usage pattern and one reason I switched to OVO was my (mis)understanding that they were interested in better information as well.