Grid Code Update
Performance and Compliance Update
sonnen has released a new set of performance and stability updates to optimize our batteries' performance and compliance with UL 1741-SB.
Update Duration
The new update process will take between 1 and 1.5 hours to complete.
Start Commissioning Early for Faster Installations
As the update starts when entering the commissioning assistant, we recommend you start the sonnen commissioning process as early as possible in your installation so you can attend to other installation elements while the update is taking place.
Post-Update Steps for CA Rule 21 Compliance
In California, a post-software update process will be needed to comply with CA-Rule 21-specific modifications.
Download and read the manual.
How to update the Inverter Settings for California Rule 21.
We have created a short video on the California Rule 21 instructions to help you complete the Inverter update. Please visit the Rule 21 update page in the manual for more details (Page 7) & the grid codes needed. (page 9).
