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OpenEMS / openems

OpenEMS - Open Source Energy Management System
GNU Affero General Public License v3.0
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Set maximum storage level in percent #2091

Closed julhei closed 7 months ago

julhei commented 1 year ago

Bug Report or Feature Request (mark with an x)

- [ ] bug report -> please search issues before submitting
- [X] feature request

Bug description or desired functionality.

As owner of a Fenecon storage solution, which is built on top of OpenEMS, I would like to be able to set a maximum storage level in percent to avoid storage levels above a certain threshold in times when energy requirements are less or daily production is high. This should help the storage system to maintain a high maximum storage capacity over a long period of time (decades) and it contributes to maintaining the high value of the investment.

Currently, I am achieving this charging behaviour by manually setting the mode to manual until 23:59 in the App Grid-optimized charging, when the battery level has reached 80%. I would love to have this automated. I would also be open to accomplish this task using one of the write interfaces (Modbus or REST) out of my home automation system (Home Assistant), or I am open to any other recommendations.

hydroid7 commented 1 year ago

Hi, Thank you for that short explanation. I have the impression, that you look for a kind of "battery protection mode". Feel free to open a thread in OpenEMS community for discussing your idea further. Best

sfeilmeier commented 7 months ago

@julhei: We try to move all discussions to the OpenEMS Community (https://community.openems.io/), to have them in one central place.

If you miss a feature in your FENECON energy storage system, I recommend getting in touch with FENECON Service (https://fenecon.de/kontakt/). Also note, that for LiFePO4 batteries, it is recommended to charge them "full" regularly, to enable cell balancing and SoC calibration.