Question : How to report financial benefit of solar panels

My first post here, been using home assistant since feb, moved over from FHEM and I am loving it. Amazing. It is however, a complex beast so I’m not sure what the best way to go about the following problem.

I would like work out the value of the solar panels i’ve just installed are giving me.

I have a shelly EM with 2 clamps, one around the house supply and one around the panels. I’ve added these to the energy dashboard and entered in the fixed cost of import/export so the energy dashboard gives me all the nice information… % solar utilised, amount exported etc… along with some costs.

I would like to create a daily, weekly, monthly, yearly cost that multiplies ( solar utilised * cost of import ) + (solar exported * export tariff cost) but i’m unsure exactly what the best approach is… create a utility meter… another tarif… Most of the values are in the Energy dashboard but can you access them out-with it?

Many thanks

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further to this question, can the data from the energy dashboard be extracted / used in the rest of home assistant. I would like to extract the “home” energy per hour/day which the energy dashboard creates but I can’t see as readings anywhere. The alternative is that I essentially have to recreate all the meters and readings already in the energy dashboard so that I can derive the home energy usage… which seems a bit pointless.