Your queries look reasonable. I don’t think the cumulative sensors are necessarily the issue → non_negative_difference() on cumulative energy counters is a common approach.
I’d first check whether the query is actually returning one row for every 1-hour bucket. fill(previous) only fills gaps between returned buckets; it doesn’t create buckets before the first returned value or outside the queried time range.
Also make sure you’re viewing Today (calendar day) rather than Last 24 hours, otherwise you’ll only see data up to the current time.
The Query Inspector or Table view will quickly show whether the datasource is returning all 24 hourly timestamps. If it isn’t, that’s why Grafana can’t render a bar for every hour.
I tested the panel config with TestData → panel showing the Time series + Bars setup with Today as the range, for reference
The screenshots suggest this isn’t a panel rendering issue. In the Yesterday view, the Table view itself starts at 11:00 → there are no rows at all for 00:00–10:00, not just zero values ,so the datasource isn’t returning anything for that window. Grafana can only render the timestamps it receives.
I’d check why the datasource isn’t returning data for those hours → for example, whether Home Assistant/InfluxDB actually has data for 00:00–10:00, or inspect the generated query in Query Inspector to verify the requested time range.
