May 20, 20197 yr Hi All, After some time planning and getting most of the stuff ready I got my panels and inverter up and running. Over the last few days, I prepared for the installation with hanging the inverter and installing the conduit and cables in the roof for a quick install. Electrician and the panels guys installed the rest the past weekend. Spec: Inverter : KSTAR KSG-4k Grid Tied Panel : 4 x 350w Canadian Solar Setup was in the garage as there is not space anywhere else. Panels is mounted NW as this is the only space that is available on the roof. Monitoring, moved my home power usage monitor to the inverter output to see how much is generated until I can get my inverter monitoring setup.
May 20, 20197 yr 30 minutes ago, Luminous said: KSTAR KSG-4k Grid Tied Just out of curiosity, looking at the DB, i do not see any grit limiter or similar device, neither can I see any extra wires going into the inverter that might come from a CT. My question then, If your load is less than the production of your panels, what happens to the rest of the capacity? Theoretically it would be send to the grid, witch takes me to the next question. What kind of meter do you have? If its a Smart meter, you will get charged for what you export to the grid. How would you manage or prevent this?
May 20, 20197 yr 53 minutes ago, Luminous said: Panel : 4 x 350w Canadian Solar One more Question please, The Canadian Solar 350 Watt has a VOC of 46.6 Volt and a VMPP 39.2Volt. Maximum "Working" Volts with 4 of these in series will be 156.8 Volt, but that would drop under load and different conditions. The Manuel states the following: Will 4 panels be enough to keep the inverter running?
May 20, 20197 yr Author I currently have CT clamp's in the db there on the end you'll see small wire coming out. Trying to hide it. This goes through MQTT to the server and then I have a laptop on a table that is not in the picture. This uses RS-232 to control the inverter export. The meter is on the other side of the wall. The 4 current panels is stage one, plan is to add another 4 panels on the right side. The inverter has a range of 120v-500v for it to switch on. And only start producing from 140V from my monitoring of the inverter. From what I can track from the CT clamp the production as follow. Saturday after installation 3kwh for the day and yesterday 5.2kwh for the day. Edited May 20, 20197 yr by Luminous
May 20, 20197 yr 5 minutes ago, Luminous said: . The meter is on the other side of the wall. Thanks, I could not understand how you did this, but now it makes sense.. So the main idea here is to reduce your electricity bill? No power when Muni goes down?
May 20, 20197 yr Author 2 minutes ago, Jaco de Jongh said: Thanks, I could not understand how you did this, but now it makes sense.. So the main idea here is to reduce your electricity bill? No power when Muni goes down? Yes, reduce electricity bill. I have a small 700w inverter with 2x80ah batteries to just run the network, home autormation stuff, camera, server, lights and tv for loadshedding. Loadshedding is less then 0,01% of the total year. Building a full battery system for the 0,01% of the time is a waste in my mind. With the solar panels facing NW I am surprised that the inverter start producing around 8am already with around 20w, 1pm peak currently 940w and then 5pm around 200w. Today is my 1st full autolog to PVOutput. https://pvoutput.org/list.jsp?userid=75969
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