Sun, 19 Apr 2026 05:02:13 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262864#Comment_262864 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262864#Comment_262864 Fri, 10 Nov 2017 10:29:08 +0000 Jamster
As part of some planning for PV + battery install (or not), I would like to record our power consumption with as much granularity as possible - down to 15 min or 30 min intervals ideally? I can access the incoming mains cable - is there a clip on logger / transmitter I can use?

I know there are DIY solultions, but I don't have the skills or time really so if anyone has a system or device they can recomend before I plunge into the web, I'd be grateful.

Thanks.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262866#Comment_262866 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262866#Comment_262866 Fri, 10 Nov 2017 10:47:52 +0000 SteamyTea You then have to connect them up to a data logger, usually a Raspberry Pi and tinker a bit with the output file.
When I was involved in energy metering, I never found a cheap (sub £100) logger.
One of the problems is that most wanted to upload the data to a website and display as they saw fit. Not always what you actually want.

You may well find that your inverter has logging built in. I know that some had it that was accessible via Bluetooth and needed no extra hardware, though installers often charged for extra kit unnecessarily.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262868#Comment_262868 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262868#Comment_262868 Fri, 10 Nov 2017 10:56:33 +0000 Jamster
As you say, all I want to do at this point is download some data locally, not access or display in real time over the web...]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262870#Comment_262870 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262870#Comment_262870 Fri, 10 Nov 2017 11:07:20 +0000 SteamyTea https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262871#Comment_262871 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262871#Comment_262871 Fri, 10 Nov 2017 11:13:05 +0000 Jamster Posted By: SteamyTeaWhere in the country are you? If fairly local I could cobble a bit of kit together and set it up for you. I am down in West Cornwall, so nowhere is local to me, in a way.

That's very very kind of you but sadly I'm in Durham so not exactly local (as I discovered when we holidayed on Mount's Bay this summer)... Frankly, I would happily pay you (or make a donation somewhere) for your time / kit if it was the best way to get the job done though - should we see how this thread goes?]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262872#Comment_262872 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262872#Comment_262872 Fri, 10 Nov 2017 11:21:54 +0000 SteamyTea
I shall have a little look about and see what is available as I have not done much monitoring for the last few years.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262873#Comment_262873 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262873#Comment_262873 Fri, 10 Nov 2017 11:26:34 +0000 Jamster
Thanks for your monitoring help too!]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262874#Comment_262874 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262874#Comment_262874 Fri, 10 Nov 2017 11:32:42 +0000 SteamyTea I think I may have some PV and house hold data on the PC (I am away at the moment). Shall see what it shows as an example.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262878#Comment_262878 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262878#Comment_262878 Fri, 10 Nov 2017 12:36:07 +0000 goodevans https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262883#Comment_262883 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262883#Comment_262883 Fri, 10 Nov 2017 12:55:22 +0000 sam_cat https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262890#Comment_262890 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262890#Comment_262890 Fri, 10 Nov 2017 13:24:53 +0000 SteamyTea https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262931#Comment_262931 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262931#Comment_262931 Sat, 11 Nov 2017 12:07:38 +0000 djh https://openenergymonitor.org/ You can buy kits or complete products. There are various versions and its all very expandable. https://guide.openenergymonitor.org/ https://shop.openenergymonitor.com/emonpi-3/ There's a fairly active community.

Basically, if you want to measure your energy usage, you clip a small device around your incoming mains wire (a 'CT') and connect it to a computer-based device that analyses the data, logs it and displays it. There are options for all parts.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262943#Comment_262943 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262943#Comment_262943 Sat, 11 Nov 2017 16:24:49 +0000 borpin https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262978#Comment_262978 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262978#Comment_262978 Sun, 12 Nov 2017 21:35:39 +0000 ActivePassive https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262982#Comment_262982 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262982#Comment_262982 Sun, 12 Nov 2017 22:00:24 +0000 SteamyTea Once you have 1000 readings over a couple of months, it should give you a fairly good indication of what is going on.

I like the open energy stuff, just found it expensive at the time.

A 10 quid Pi Zero W can read just about any USB input and put a time stamp on it.
Does take a bit of fiddling to get working which Jamster was trying to avoid.

I agree that the ones that can read the pulse LED are the better ones.

Have a look though this lot, you may find something.
http://www.ebay.co.uk/bhp/current-cost-envir]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262995#Comment_262995 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15385&Focus=262995#Comment_262995 Mon, 13 Nov 2017 12:30:49 +0000 borpin Posted By: SteamyTeaI agree that the ones that can read the pulse LED are the better ones.OEM do a pulse reader option.]]>