Are you sure it only reports once a day? Judging by the graph it looks to be updating regularly and then reset once a day. (especially noticeable when looking at the last day).
This won’t work well with this card, since the graph is based on a moving average calculated on the history data from each data point (24 hours in this case).
Also, if you would open the UI with the graph in the middle of the day (12:00) for example, each bar will consist of history data from 12:00 a clock - 12:00 a clock previous day, while you are probably expecting it to calculate each day from 00:00-24:00.
Anyway, I think you could make it work, but it would require some work.
Kind of hard to explain but if you could make the sensor only report once at the end of the day (at the exact same time every day), maybe just before 00:00 and then also reset itself, I think it could work. The sensor would need to be updated at the exact same time every day though, if not, two updates could end up in the same 24 hour timespan. An easy workaround would be to set hours to show slight lower (286) but still have it display 12 bars, that way each day would be 23h50min and you have a 10 minute margin for the sensor to update.
Also, there’s a bug with the bar chart atm, there’s an additional bar, the last (right) bar shouldn’t be there.