EmonCMS is great and simple to use and the following is not a replacement but a supplementary way of displaying energy data, whether for specific or experimental purposes.
It’s now easy to make a grafana dashboard public safely, via Home Assistant and this Grafana Cloud addon:
Here’s my gas boiler (I want to replace it with a heat pump) as an example:
https://gasboiler.grafana.net/public-dashboards/8d44381aafa94fe9bdc87839d8845ada?from=now-6h&to=now&timezone=browser
I thought some of you might find it handy for some projects 
Where you need precise datapoints with precise timestamps for analysis, such us Control Setpoint vs Flow Temperature, you can add InfluxDB Cloud as another source for Grafana Cloud, .i.e. HA > InfluxDB Cloud > Grafana Cloud.