# Smart solar mppt rs 450/100 not feed in grid when battery is full

**URL:** <https://community.victronenergy.com/t/smart-solar-mppt-rs-450-100-not-feed-in-grid-when-battery-is-full/5266>\
**Category:** DIY\
**Tags:** mppt\_rs, 3-phase, pv\_inverter, beginner, ess\
**Created:** [26 September 2024 16:05 UTC](https://community.victronenergy.com/t/smart-solar-mppt-rs-450-100-not-feed-in-grid-when-battery-is-full/5266 "2024-09-26T16:05:49Z")\
**Posts on this page:** 1\
**Showing post:** 5

<div class="post-metadata">

**Author:** ![alexpescaru](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/alexpescaru/32/270_2.png) [@alexpescaru](https://community.victronenergy.com/u/alexpescaru)\
**Post date:** [27 September 2024 20:35 UTC](https://community.victronenergy.com/t/smart-solar-mppt-rs-450-100-not-feed-in-grid-when-battery-is-full/5266/5 "2024-09-27T20:35:06Z")

</div>

Do you have any ESS assistants installed and enabled?  
Because in order for what you want to work, according with the scripts, you need to:

1. Have the assistant with ID=5 installed. I suppose it’s the ESS assistant. Check **/Hub4/AssistantId = 5**
2. Have the Multi with the AC connected. Check **/Ac/ActiveIn/Connected = 1**
3. Have DC coupled feed-in excess enabled. Check **/Settings/CGwacs/OvervoltageFeedIn = 1**

If all are checked, then the system will maximize chargers’ production.

---

_[View the full topic](https://community.victronenergy.com/t/smart-solar-mppt-rs-450-100-not-feed-in-grid-when-battery-is-full/5266)._