Tigo Energy Meter installation is covered in the EI Residential Solution Certification Course.
The EI Energy Meter is essential to Tigo's EI Residential solution. It measures current flow in and out of the home for important battery charging calculations and is also used for zero export applications. It has two prewired split-core current transducers (80 inches in length), that are placed onto the main service entrance for the site.
If the service entrance (or box) is full of connections, has internal obstacles, or is too small for the Energy Meter's CTs to fit inside, the installer will need to seek out an alternative connection point.
- This meter box is too small for the CTs to attach and still be able to shut the door.
- This is a bottom-fed AC panel with square bus bars, that the EI Meter CTs will not fit around
Option #1: Request upstream access to the utility’s service conductors (usually located in a separate enclosure). Once those conductors are exposed, the CTs can be connected to the utility side of the service panel.
Option #2: Service meter shift. This option requires utility approval, and the Local Utility agent must perform the shift. They will install a separate enclosure next to the main service panel. The existing conductors will be exposed for the CTs to clamp around.
This arrangement would look something like this:
You can also share your experience at the Tigo Community!