Having run #wonderwatt for a few days, including a day of EV charging, I've concluded that I can achieve most of what it does via my existing approach within #homeassistant and a spreadsheet.

Sure, it's not as easy and I have to manually tweak things when I'm charging the EV, but the price per month is way too high to justify against a few minutes of effort on my part.

Presently I manage my #growatt solar hybrid inverter and batteries through a combination of the #shinephone app, the #growatt web portal, and #homeassistant

This works fine for normal stuff, although I need to manually control battery charging times to match up with #OctopusEnergy tariff I'm on of #IntelligentOctopusGo

None of this is too difficult, but it is a bit annoying to have to remember to do all the right things in order to control the combination of kit and my #Myenergi #Zappi charger to ensure charger my #EV doesn't drain my solar batteries.

So I thought I would give #WonderWatt a trial and see if this helps automate and manage schedules and IOG charging correctly.

They offer a 14-day trial, which doesn't appear to be functionally limited, so I'm able to confirm if this does meet all my needs. A monthly subscription of around $6 (not sure what that is in £ for me in the UK) isn't too bad a deal if indeed it does simplify everything for me.

https://www.wonderwatt.com/