Author Topic: Exported Power from PV Systems; Meter Reading  (Read 1700 times)

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Online HalcyonTopic starter

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Exported Power from PV Systems; Meter Reading
« on: April 12, 2016, 07:20:10 am »
I've recently installed a solar PV array on the roof with a 5 KW inverter. The entire system usually generates about 4500 watts @ 240v on a sunny day. I believe it's a Net Metering system (in that any excess I don't use is supplied back to the grid).

When I look at the electrical meter, it shows figures for imported and exported power. My question is, the value shown on the display for export, is that measuring the total power generated by the PV array or just the excess?

 

Offline coppice

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Re: Exported Power from PV Systems; Meter Reading
« Reply #1 on: April 12, 2016, 07:29:17 am »
Your meter shows the amount of energy you have imported from the grid, and the amount you have exported to the grid. It knows nothing about what is happening within your house, so that is all it can record. It might allow you to see the power being imported or exported as well, but a lot of meters don't.
 

Offline HackedFridgeMagnet

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Re: Exported Power from PV Systems; Meter Reading
« Reply #2 on: April 12, 2016, 08:44:09 am »
Does it auto cycle between import and export? Looking at the chevrons?

Right now it is showing export.

I guess it could show the info in 2 ways,
   1. keep a record of both import and export and toggle between them. 
   2. Just a net figure and have the chevron indicating whether it is imported or exported.

Have a look at night, if the figure is going down it is showing net, if it only goes up on sunny days it is showing the gross export.

that seems to be the manual.
http://www.mwatechnology.com/wp-content/uploads/2015/07/A1100-EndUsersGuide.pdf
 


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