Can I use hybrid inverter without it selling back to grid?

[Lazeringkids]

I'm in the process of learning the best way to install a hybrid inverter without selling back. I don't want it to feed the grid, because then I have to deal with my power company.. though I want it to bypass and still use the grid when necessary.

Can I just run wire from the inverters grid port to a breaker on main panel. Then run wire from the inverters load port to a sub panel?

Thanks in advance

 

[1201]

If you connect the grid it is guaranteed it will backfeed the grid some and you'll get a visit from your poco

 

[billvon]

I'm in the process of learning the best way to install a hybrid inverter without selling back. I don't want it to feed the grid, because then I have to deal with my power company.. though I want it to bypass and still use the grid when necessary.

Can I just run wire from the inverters grid port to a breaker on main panel. Then run wire from the inverters load port to a sub panel?

If it has a zero export option - yes. Generally you need separate current sense transformers with this. Also it will export a very small amount of power due to control latencies but usually that's OK.

 

[ricardocello]

If it has a zero export option - yes. Generally you need separate current sense transformers with this. Also it will export a very small amount of power due to control latencies but usually that's OK.

Depends completely on the utility meter you have installed, and what the PoCo wants to do if they see the small backfeed.
Could be nothing, could be a visit, could be a threatening letter.

 

[SparWeb]

Are they even watching for backfeeding, if the customer isn't signed up to be a microgenerator? The utility meter might be able to measure bidirectional energy, but if the customer isn't signed up to export, does the unit even report the data?

I've noticed that the same types of units can be field-configured to display different data, potentially meaning that they don't radio back to the head-office all the data they could possibly collect, either. From the POCO's point of view, it's just easier to handle less data from a million customers every month.

 

[robby]

Besides the kind of meter it also depends on how anal they want to be and the amount of back feeding depends on which Inverter model you are using and the amount of heavy loads that are being switched on and off on a regular basis.

 

[Lprantner]

I'm in the process of learning the best way to install a hybrid inverter without selling back. I don't want it to feed the grid, because then I have to deal with my power company.. though I want it to bypass and still use the grid when necessary.

Can I just run wire from the inverters grid port to a breaker on main panel. Then run wire from the inverters load port to a sub panel?

Thanks in advance

Most if not all Hybrid inverters have grid tie optional in the setup screen options. So, yes, do what I did with my Sungold TP6048 inverter; run grid input to the inverter, and inverter output to the load panel breakers.

 

[ricardocello]

Thread 'DIY Hybrid Inverter without permit?'
https://diysolarforum.com/threads/diy-hybrid-inverter-without-permit.96174/

Post in thread 'Question About Preventing Grid Backfeed'
https://diysolarforum.com/threads/question-about-preventing-grid-backfeed.85969/post-1271794

 

[donb108]

I think off-grid inverters do exactly what you want (zero export). Have you looked at those? By the way, I've seen threads (long ago) that talk about backfeeding even when it was disabled, not sure how it was resolved.

 

[Capt Bill]

I'm in the process of learning the best way to install a hybrid inverter without selling back. I don't want it to feed the grid, because then I have to deal with my power company.. though I want it to bypass and still use the grid when necessary.

Can I just run wire from the inverters grid port to a breaker on main panel. Then run wire from the inverters load port to a sub panel?

Thanks in advance

My MPP LV2424 are grid tie capable, and that function is easily Disabled in one if its' settings. I would think most hybrid Solar Inverters would have the same option. Bet you could find that setting via studying the installer manual of the equipment you are considering (study the configuration settings pages).

 

[fastbike]

My Solis S6 has this page, we had to set it lower than 10kW due to other panels exceeding the feed in limit