# How sustainabile an ESS can be?

**URL:** <https://community.victronenergy.com/t/how-sustainabile-an-ess-can-be/694>\
**Category:** Show us your system\
**Tags:** multiplus\
**Created:** [12 August 2024 13:51 UTC](https://community.victronenergy.com/t/how-sustainabile-an-ess-can-be/694 "2024-08-12T13:51:14Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![Ulfilas](https://avatars.discourse-cdn.com/v4/letter/u/7bcc69/32.png) [@Ulfilas](https://community.victronenergy.com/u/Ulfilas)\
**Post date:** [12 September 2024 10:14 UTC](https://community.victronenergy.com/t/how-sustainabile-an-ess-can-be/694/5 "2024-09-12T10:14:08Z")

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This Auto transfer switch (TOMZN ELETRIC TOQ3-63/4P AC-33IB Transfer Switch) I found on Ebay for 50€. It consists of two 4P-breakers coupled with a motor driven mechanic. You will find similar designs also on Amazon. It is not as high quality as ABB or similar but affordable.

Bay the way, for my 60kW-PV i need to have 200A automatic breaker for the grid and plant protection. And the auxiliary relay of the 2k€ ABB breaker make a lot of trouble.

I use the ATS to bypass the MultiPlus II for service times the could be a manual transfer switch also fine. But i want to test the ATS if it is also worth it for grid fail management.

Now after one year operation the switch 50€ is doing its job, ~10-30 switches.

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