Jump to content

Featured Replies

Posted

I have been asked by a family friend to visit his guest house/conference centre to discuss what options are available to him to reduce his Eskom electricity bill.

The facility has a 300 kva back up generator, so backup is not required.

I was thinking along the lines of a grid tied inverter with a couple of PV panels on the roofs to generate electricity during the day.

First step is to measure and log the usage patterns of the site, can anyone recommend a 3 phase data logger that can record consumption for a month or so?

 

9 hours ago, Noobie said:

Thanks Plonkster, I will look into the Carlo Gavazzi units

I have an EM24 unit, 63A 3-phase. Overkill for my application but got it for a good price. Normally they are around 200 Euro. I think the Eastron SDM series modbus meters are a lot less expensive and will do the same job. I just don't know them, @JDP is the man to talk to there.

You may also need a computer to read the meter, although the CG meter is pretty capable on its own, keeping stats for average, min and max without the need for a computer connection.

A Efergy clamp meter, though not perfectly accurate, will be cheaper and get you ballpark numbers too. Depends how much you want to spend on this :-)

Plonky the modbusmeter I use is R400. Efegrgy is R1000 plus. But you need to add a pi or pc to log the data.

Yes you get the 3 phase meters as well.

I use a single phase one.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...