Hoping for some advice:
I’ve been using Homey for about a year, mostly for simple home automation tasks like lightning and curtains.
Now venturing into power optimization because I am noticing that my power consumption is higher than expected and I just found out my (newly built) home has a 35 A connection to the power grid where 25 A is standard, but this comes at a hefty price tag of 3x the cost of 25 A. I assume the builder chose for 35 A because the home as 2 car chargers (3-phase) combined with a 3-phase heat pump and electric stove. If all these would run at full capacity, 25 A will probably not suffice. The house has solar panels, but there is no need to use any excess power from them to charge the car yet (because I’m in the Netherlands, an until 2027 the utility will purchase my excess power at the same rate to what I’m charged)
I assume however that 25 A will be sufficient 99.9% of the time. if possible, I’d like to eliminate that remaining percentile and cash the savings.
So I would like your recommendations:
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option 1: use a standard P1 meter, combined with the Easee Homey app and flow to monitor power consumption. When the consumed current exceeds 20 A, either shut off Easee or limit it to 6 A until consumption drops below 9 A. Question for this scenario: should I cut Easee’s consumption when any of the 3 phases exceeds 20 A? Or will it somehow balance itself out when only one phase shows a heavy current but the other 2 have plenty of capacity left?
added bonus is that I should be able to start using excess solar power in the future when the rules change. -
option 2: get an Easee Equalizer, eliminating the need for Homey to be involved at all. Trade-off: this device looks like it is essentially a p1 meter with some custom software added for load balancing. It’s target audience seems larger installations with many chargers, but I assume it will cover my scenario as well. For a p1 meter, it seems somewhat overpriced, and tackling this problem myself seems like an fun project/challenge.
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option 3: keep paying for 35 A (which is about 1000 euro/year more expensive than 25 A)
It looks like a lot of folks here have been tackling my problem for longer than I have, I would appreciate any tips and feedback.
Thank you!
