I'm exploring ways to effectively utilize my daytime solar energy. I want to set up an automation with Home Assistant using a battery like the EcoFlow Delta to charge during the day and offload a 500W baseline when solar production isn't sufficient. Has anyone in the US successfully implemented an EcoFlow PowerStream, especially with DIY solutions for 240v? My solar panels are quite far from my dual 200 Amp panels, but I'm using Tuya CT clamps to gather real-time data for Home Assistant. I'm looking for a battery that can dynamically sync its charging and supply the necessary energy at night, creating a zero-export system. Any advice would be appreciated!
3 Answers
The EcoFlow PowerStream can be tricky since it's a micro inverter that needs to check the frequency before it can start. The frequency tolerance is very tight, so it might not work as you hoped.
I haven't seen much regarding battery systems in a box like the EcoFlow, and honestly, I wouldn't put too much faith in those. A Victron setup with a dedicated battery might be a better option for you. It's reliable and straightforward to implement.
Charging the battery is pretty simple with devices like Bluetti or Anker, or you could build your own system around an AC coupled hybrid inverter and a battery setup. The challenge is getting the energy back out without grid tie issues due to regulations. You might have to rewire parts of your home to run through the inverter output with the grid serving as the "generator." If you have your set up clever enough, using CT clamps could help manage the energy flow efficiently to match your household consumption.
That sounds interesting! I'm hoping to charge at a rate of around 300-600 watts based on excess production. I think hybrid inverters could work even though my solar DC and grid power readings are from different locations. I'm looking into automating everything with Home Assistant, but a one-size-fits-all solution like SUN-2000 or Growatt seems hard to find.