Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Green Renewable Energy Forum
Solar PV Forum
Solar + Batteries = import from grid
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Talk Electrician Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="johnb2713" data-source="post: 533309" data-attributes="member: 35153"><p>Inverters in grid tied mode operate by adjusting their output voltage. If their voltage is higher than the grid they take the load / export to grid, if their voltage is lower they shed the load / import from the grid. Modern inverter are digital and dont have infinite steps of voltage change on their output which in many circumstances will mean they cant get to zero import / export. So when it make an adjustment one step may change from 15w export to 30w import. My Growatt inverter used to constantly stay on the import side line until the export was enabled, now it hovers either side of the line. Another possibility is the inverter needs to keep a little import running to stay synchronised to the grid, I dont know how Solis achieve this but it is a possibility. Final possibility, is your import/export sensed with a meter of CT? If it's a CT, have a look at the cable routing and maybe consider screened cable.</p></blockquote><p></p>
[QUOTE="johnb2713, post: 533309, member: 35153"] Inverters in grid tied mode operate by adjusting their output voltage. If their voltage is higher than the grid they take the load / export to grid, if their voltage is lower they shed the load / import from the grid. Modern inverter are digital and dont have infinite steps of voltage change on their output which in many circumstances will mean they cant get to zero import / export. So when it make an adjustment one step may change from 15w export to 30w import. My Growatt inverter used to constantly stay on the import side line until the export was enabled, now it hovers either side of the line. Another possibility is the inverter needs to keep a little import running to stay synchronised to the grid, I dont know how Solis achieve this but it is a possibility. Final possibility, is your import/export sensed with a meter of CT? If it's a CT, have a look at the cable routing and maybe consider screened cable. [/QUOTE]
Insert quotes…
Verification
Post reply
Green Renewable Energy Forum
Solar PV Forum
Solar + Batteries = import from grid
Top