MyEnergi Hub, Harvi & Eddi Installation

[@rslade1468]

I’ve been searching for a video explaining all this in one video and so simply and in detail. THANK YOU SO MUCH!!

[@andylees2940]

Excellent video, very clear and informative. The EDDI stuff is super easy to install and setup !

[@remco2777]

Very comprehensive video - thank you!

[@iainatkinson9239]

Excellent video many thanks, don't know if you can help with this or not? my system is 6kw solar I am replacing 2 Immersun units that were paired together to provide a master unit and a slave, I used these to power 2 x hot water tanks with 4 immersion heaters in total 1 in a small tank for showers etc and the other 3 for central heating, do you know if the eddi can be configured the same way or should i just power the tanks separately off each seperate eddi unit. I have 2 units ready to go in just not 100% sure how to do it, thanks Iain

[@HarvestingTheSun]

Hi Iain, if I've understood the question correctly, then it goes like this.... The myenergi products all work based on a grid CT placed on the live tail exiting your meter (and going to your consumer unit). It is simply monitoring for export. When it detects this, it tells your Eddi to power up at the same rate of export. In terms of the Eddi, it can be connected to 2 loads, however only 1 operates at the same time. There is a long list of things you can connect to it like immersion heaters, towel rails, electric heaters, underfloor heating etc. The list goes on, and you can find a full list in the instruction manual. Lets say you connect 2 immersion elements to the Eddi like I have. You wire one of them into the load 1 terminals, the other into load 2 terminals. Then in the Eddi settings, you tell the system which one has priority (i.e. it will heat that up first). When the load which has priority reaches temperature and switches off, the Eddi will then divert the surplus power to load 2. You can configure it to check back if load 1 can take any more energy every xx mins (mine is set to 15 mins which is the default). If both loads say they are at temperate, then the system will allow your surplus to be exported. In short, the Eddi is a smart system, but it works in a pretty dumb way, so you don't need to overthink it. It simply uses the CT to monitor for surplus going back to the grid. It then switches on the things you have connected to the load in the priority you setup on the Eddi. That's it. The Eddi doesn't care what you have connected to the loads (as long as they are resistive loads and compatible etc). It can only power 1 load at a time upto a max of 16amps (depending on how you've wired it up). So in your setup, I think you can accomplish the same with the Eddi's. I haven't got experience with 2 Eddi's on the same system, it might be something to check with myenergi in terms of getting one to behave as a master and the other a slave (although I know in the myenergi setup, something has to be configured as a master, and then everything else is a slave to that, so no reason why it can't do that with 2 Eddi's. After that, it all works off the same grid CT I mention above. I'm pretty sure the 2 Eddi's you have won't compete with each other...myenergi are smart to that as they manage to prioritise between and Eddi and a Zappi successfully, so I would assume they can also do it with 2 Eddis. But just in case you run into a problem, the Eddi also has a setting where you can delay when it kicks in. I currently use this as a workaround so it doesn't try to turn on at the same time as my GivEnergy battery.. I make the Eddi wait 10 seconds (the time it takes for the GivEnergy battery to ramp up). Only if it still detects an export, then it fires up. I hope this makes sense. Basically, IMO, I think it should work for you.

[@mikehumphs1124]

Easy ? I hope. I have a 6.5kw solar. An Eddi to be titted next week. Do I "need" a harvi and the hub??

[@HarvestingTheSun]

The new version of the Eddi has the hub built in so you shouldn’t need a separate hub like I have. The Eddi requires a ct clamp on your incoming power supply somewhere between your meter and fuse board. If it’s not practical to have a wired connection, then you could get a harvi to do this job wirelessly.

[@TommysDaddy]

Excellent clear overview! Now I know what all these devices do !!

[@matty4906]

Really good detailed video thank you. If you have solar and batteries, I’m confused on where you would place both of the CT clamps. For the solar, I’m sure I would find the live tail feeding back into the mcb and clamp around that. Would you be able to advise on where I would put a CT clamp for the battery storage please?

[@karlnapier-barr2360]

Hi, great video. I have one question about the wire used. I can see it’s grey coming from the 13A fused spur and thick white cable going from the Eddie to the 20A DP and to the Immersion heaters. Can you explain what wires these are, reasons for use etc? I want to make sure I use correct wire

[@HarvestingTheSun]

Hi there Karl. The grey wire is standard twin and core which will be used around your house to supply the power sockets. The white wire is heat resistant flex wire…again, this is standard wire used to connect immersion heaters. Hope this helps.

[@phillipphan1394]

hi. nice video. can you clarify please: you have three isolator switches? 1 to isolate the Eddie device. Plus another for each of your two immersion heaters. for one immersion heater households, is one isolator enough to isolate the eddi, and therefore the immersion heater down stream?

[@HarvestingTheSun]

Hi there. Officially you should seek advice from a qualified electrician, but IMO your proposal would be absolutely fine.

[@chuckeastwood1]

Ran I to a bit of bother fitting a new hub. do I need to set the harvi as the master ??? I've selected the eddi as the master and I'm not getting any surplus to my eddi

[@HarvestingTheSun]

no. you need to set the Eddi or a Zappi as master. The Hub and Harvi are slaves to that. Do you definitely have surplus going back to the grid? Have you got a CT clamp around your incoming meter tail, which is connected to the Eddi/Zappi directly or via a Harvi? If I recall, when setting up the Eddi, there is a way to test if it is correctly receiving a signal from your grid CT..

[@philb1730]

Hi Thank you for a very informative video. My question is, if I use a CT to measure my Zappi activity do I face the arrow towards the Zappi or the consumer unit? Thanks

[@HarvestingTheSun]

Hi Phil. See page 45. All CTs should point towards the consumer unit. myenergi.com/wp-content/uploads/2022/05/zappi-v2.1-Full-Manual-V2_1_3-H-ENGLISH-1.pdf

[@philb1730]

@@HarvestingTheSun Got it! Thank you for your help 👍

[@SteveKeogh-on-google]

HI - Any reason why the EDDI couldn't be installed at the other end? The Consumer unit end - using the feed straight out of the Immersion fuse?

[@HarvestingTheSun]

I don’t see why not. It’s basically the same thing. I guess it all depends on the layout of your property and how easy the wiring runs are to everything that needs connecting.

[@john1040]

hi thank you for a great video, very informative just one question why did you not go for a zappi ev changer, all your videos are great to watch & very helpful.

[@HarvestingTheSun]

Hi John, basically I didn't like the look of the Zappi. It's very plasticy. The Hypervolt looks more like an apple product - very clean and clinical. I can control all the settings via the app with HyperVolt (whereas with MyEnergi, pretty much all of the settings have to be done on the physical device). I realise integration is not as good with so many different brands in the ecosystem....I'm trying to figure out how to make it all work together....particularly switching priority between the eddi and EV charger (a problem which MyEnergi already have a solution for if you have a Zappi).

[@john1040]

@@HarvestingTheSun thank you for the quick reply, i have to do more research into both before i make my mind up.

[@iainatkinson9239]

many many thanks for the reply much appreciated

[@philiponsolent7232]

Hello I appreciate you may not be able to answer a specific problem but, I am trying to get my solar and battery in my garage, to talk to the Zappi on the detached house using a Harvi. No matter where I place the CT clamps the Harvi will not light up. I tested it using the positive wire between the meter and the house consumer unit and it lit up, so it appears to work I have separate live and neutral wires from the battery to its own inverter and the CT clamp doesn't want to play on them, neither will anything happen if I place a CT clamp on one of the combined live and neutral wires from the solar inverter. I am assuming that the clamp has to go around a single live wire, not one that contains both live and neutral Would I be better to get my electrician to put the CT clamps on inside the garage consumer unit?

[@HarvestingTheSun]

Hi Philip. The CT needs to go around either a live or neutral wire. It will not work if it’s around a cable with both running through it. It really should go around the live tail which comes out of your meter and goes into your main consumer unit as it’s trying to measure grid import. If it’s hard to get it around the live due to space, you can put it around the neutral and reverse the polarity of the wires inside the harvi. The CT only works if there is current flowing through the wire. So if your house is generating solar or running off your battery…at that moment, there could genuinely be no current running through the grid meter tail live wire. Maybe switch off your battery and solar whilst you set it up, to force the house to pull power from the grid? Just so you can test it working. My harvi just flickers a little light once in a while and only when there is current flowing through it. Most of the time it looks like it’s doing nothing with no permanent lights on. This is possibly why it appears dead when you’ve experimented with other wires…if there’s no current flowing through it, it won’t work. Not sure how far the harvi and zappi are from each other, but could they be out of range? When you say you want the battery and solar to talk to the zappi…literally how this works is that it uses the CT to measure grid import/export and then turn on your zappi accordingly. It can’t actually talk to your solar and battery setup…all it can do is measure the net effect. I just wanted to mention that there is nothing more intelligent than that going on. You can put an additional CT around your solar generation tail. It needs to go around a wire with AC current running through it, and again it needs to be just around the live wire…not live and neutral together. Usually there will be a wire which goes from your inverter back to your consumer unit (or a sub-main consumer unit). You need the generation CT around the live tail only on that. Finally, I presume you have already paired the harvi to the zappi? If you’ve done that, and setup the CT in the zappi menu to be the grid CT, then on your zappi display you should see it display flow between the grid and house if it’s working. There is a menu on the zappi which can tell you if it thinks the CT is working and what kind of current it is measuring. This helps to tell you if the polarity is correct and I used it to compare data from my solar and battery apps to check it was about the same numbers (it’s not going to be exact). I hope this helps give you a few things to try out. Let me know how you get on.

[@5500rpmvtecpower]

I don't know how to set up myenergy app, I have a harvi, I don't know where to go to find the s/n and reg? Please help

[@HarvestingTheSun]

Setup and pairing is not done in the app. Your Eddi or zappi are the master device. Everything gets paired to one of them. The app is almost read only. Put your harvi in pairing mode and then go to the Eddi or zappi and look for new devices. As long as you’re in range and do it within a few mins it should show up. You’ll have to look at the instructions for the exact place in the menu to add a new device…I can’t remember of the top of my head.

[@nic9824]

Will this device work if you use a grid tie inverter with Zero export??

[@HarvestingTheSun]

It’s primarily designed to look for expert to grid via a CT clamp. You could fool it by putting the CT clamp on a different wire. Or you could setup a schedule/manually control it via the app. But if you’re going to do that and use it with an immersion heater like me, it might just work out cheaper to get a smart immersion heater instead. Tesla do one…

[@jameslarwood5276]

Hi, does there need to be a fused spur between the Eddi and emersion? I cannot see one on the wiring diagram and I have seen a couple of installation videos that have not used one? Thanks

[@tg7195]

Hi James, I have put in a fused spur between Eddi and immersion. I’m not sure if you HAVE to, but I saw some people had done this and thought it’s a good idea. Some where in the Eddi instructions it said that there should not be a smart switch of any kind between the Eddi and immersion. Although this switch isn’t smart it’s kinda the same thing. But I see it as a safety feature which is why I’ve done it.

[@mirop8864]

Great video make me better to understand the system and know what to order with Zappi. I feal Zappi looks to me much better than flashy Hypervolt box.. ;o}

[@HarvestingTheSun]

lol. I'll will certainly make your life a lot easier prioritising between Eddi and Zappi if you're within the same family. This is a headache that I'm trying to figure out at the moment.

[@IanMcc1000]

@@HarvestingTheSun I had a SyncEV installed.. It was the only one the installer could get in time to beat the April deadline for the grant. Now I'm adding solar, I have this headache coming up too. The Zappi would have been the best choice. But you are all wrong on the best looking. It's either the Andersen box with wood panel, or the easione!

[@HarvestingTheSun]

@@IanMcc1000 lol. You’re right. The Anderson does look sharp and has numerous skins to suit your taste. But I think the form factor is a bit bigger, and if I remember correctly it requires an earth rod as it doesn’t have pen fault detection built in. I didn’t want a box for an earth rod on my driveway so I filleted based on chargers with pen fault built in.

[@BlessedAreTheBignoses]

Hi, Must be a stupid question as cannot see mentioned anywhere else, how does the Hub know how much solar is being generated? not got my solar yet but getting Solis string (no batteries) & has its own eco system. Is it another CT clamp on the output from the inverter or can they communicate directly? If so another Harvi? but can the hub work with two sources? Would like to install an Eddi, My Solar installer is very reasonable for the solar panels & kit but wants £750 for the Eddi which I just think seems a lot for not much work. Just wondering if missing something, Eddi + hub + harvi £450 approx? £300 for what looks like a hours work max. I might install & get signed off next time my electrician in around. Emmersion heater all ready installed so no wiring for that.

[@HarvestingTheSun]

Hi Gregory, I paid £548 for Eddi, Hub and Harvi, and another £50 for wire (I had a long cable run for the 2nd immersion heater) and switches, so £597 inc VAT total. I installed it myself...it's quite easy...like wiring a plug, but would imagine that the electrician would budget for half a days work to get it all working depending on the proximity of all your devices, so £750 installed sounds about right to me. If the installer is not familiar with the equipment, they might be inflating the quote to allow extra time (my installer made all sorts of excuses...saying they have never heard of the Eddi, and eventually didn't install it, so I did it myself). There is only 1 CT clamp which came with the Eddi, which had to be clamped around the live tail from the meter for grid monitoring. I have since purchased a few more CT clamps (£15 each), and put 1 around the wire coming from my solar panels so it can monitor generation, and put another around the wire going to my battery so it can monitor storage. Due to where all these devices are, I have the hub located next to my internet router as it has to be hard wired. I have the harvi under the stairs next to the meter with the grid CT clamp wired to it. And I have the Eddi in the upstairs airing cupboard next to the tank, and I have the CT clamp for solar and battery hard wired into the Eddi (it has 2 terminals available). My solar equipment is in the loft, so I found a way for the wire to run down easily. You tell the system what all these CT clamps are monitoring in the setup. It was all easy and worked perfectly. If you need 2 Harvi's due to the location of your devices, I have seen other videos which indicate it's possible, but I haven't tried this myself. So, to answer your question directly, the myenergi system will only know about your solar generation if you purchase an additional CT clamp and place this around the wire before it goes into your inverter. It's not essential to make the myenergi system work, but you might like to do it so you can see all the info via the app. All the myenergi products work like a mesh system, and communicate all the info necessary between the devices. The Eddi (or Zappi) as setup like the master device, and then the hub and harvi are setup as children to them. In the setup, you pair all the devices together, and that's how they know to share all the information amongst themselves. hope this helps.

[@BlessedAreTheBignoses]

@@HarvestingTheSun Hi, Thank you for your very comprehensive reply. I was wondering about the VAT, he had quoted & VAT was zero on the whole installation so figured he got that back even on the Eddi but perhaps just for ease all on the single total. On a few best prices I could see online I worked that out to be £300 install, perhaps effectively more as imagine they get trade prices. Would perhaps understand if came specially but as part of £13,000 (another 4.6k on my business as well) so in loft & all the areas he would need to be already, so max 2 hours work? £750 does seem to be the standard, I know its not all about getting your money back, save the planet etc. but really do not think going to break even on that in 10 years & bet it does not last that long. I can easily install but would need to get signed off so I think all or nothing. I would have thought essential to link to the solar inverter output, surely without that, if the solar was not generating any power or enough surplus you would be drawing all the power from the grid & in my case with gas HW normally would end up costing a lot more that without. Have I read that wrong & the single CT & harvi should be going on the inverter primarily Thanks again, will consider some more, even thinking a SolariBoost basic, just to have that little extra eco.

[@HarvestingTheSun]

@@BlessedAreTheBignoses Hi Gregory, yes there could probably be some efficiency in the cost given that the installer will be everywhere in your property anyway. When you are installing solar panels, my understanding with the current VAT rules is that you then get to pay 0%VAT on all the other related equipment. So that might explain their quote. For the Eddi to work, they only need to measure if your house is exporting to the grid. Then it will activate the Eddi. If you put the CT around the inverter to measure generation, then it won't know to offset what you might be consuming in your house, or what you might be storing in the battery first. So then the Eddi would activate, when you don't actually have a surplus. I don't think I can attach a picture this comment otherwise I'd send you a screenshot of my myenergi app right now. I'm generating 1kW at this moment. So by your theory, the Eddi should turn on. But my house is drawing 3kW. So my battery is discharging to meet the demand. If the Eddi turned on, my battery would discharge even more, or I might have to pull from the grid. So putting the CT around the grid tail is definitely what you want as you only want the Eddi to turn on if you are net exporting. In my setup I put the only CT around the grid meter tail and it all worked perfectly. The other CTs for the generation and battery were bought a few weeks later so I could see more stuff in the app....but it didn't make any difference to how the eddi worked. Yeah, my installer recommended the iBoost which is cheaper (you don't need a hub or harvi because it's a much more basic device). I didn't go with it as I read too many reviews to say the fan is noisy, and some of them burnt out. So from a safety point of view, I chose the Eddi as it's not got a fan, so won't cause a disturbance as our airing cupboard is in the bedroom, and of course, nobody wants a fire! You're right, it will take a while to recover your money. For April, I diverted 104kW, which saved me about £7 in gas. If I can average that across the year, then it's a 7-8 year payback for me.

[@mirop8864]

@@HarvestingTheSun i Have the IBoost and its horibly noisy, inacurate and in hot weather it stop working showing fault from overheating so i have to take of cover blow it with cold blover switch back on to start it working again. i am getting Zappi so so rather spend extra money to get reliable Eddi even the iBoost is only 2.5years old.

[@HarvestingTheSun]

@@mirop8864 Interesting your have this experience. My installer was pushing the iBoost and I said no because I had read many reviews with your experience. I said I wanted the Eddi, and they said they had never heard of it...so I got it and installed it myself in the end. I've looked at the 2 wholesalers that I use, and they both show the Eddi as out of stock. Eta late July..

[@MT-xy7fw]

Is there a way to limit boost function wattage for night use? Ie use my batt at 2.5kw instead of 3kw full boost so no need grid import.

[@HarvestingTheSun]

Yes, there is a setting on the Eddi to limit the wattage. I think the Eddi can do 3.6kW max, but I have mine limited to 3kW as that is the limit of the immersion element I have connected. Like most myenergi settings, this has to be done on the device vs via the app. But it is possible.

[@MT-xy7fw]

@@HarvestingTheSun how? make a short video please, as I cant find that feature on instruction manual.

[@HarvestingTheSun]

@@MT-xy7fw please see page 15 and 20 in instruction manual. Supply Grid - Device Limit. myenergi.com/wp-content/uploads/2022/06/Eddi-Manual-.pdf

[@MT-xy7fw]

@@HarvestingTheSun awesome, many thanks ;)

[@dbcooper7326]

My harvi suddenly stopped reporting any voltage on the CT clamp. Still connected to hub and flashing green. Reported it to myenergi

[@MT-xy7fw]

Does a CT clamp come with the Eddi?

[@HarvestingTheSun]

Yes, I believe I got one with my Eddi. You can buy additional ones for £15 if needed.

[@philipwoodford6286]

Can I place the Harvi in my outside meter cupboard?

[@HarvestingTheSun]

yes! I've seen other people do that.

[@marcosohngen5220]

Hi! I have already a setup with Zappi, Hub and Harvi. ECO+ EV loading works fine! Now I plan to integrate Eddi with it’s CT in the system. What I wonder: how can I tell the system that in ECO+ the EV loading has priority over warm water? At first I want to load the EV‘s battery, if this is completed, I want Eddi to start with water heating. Does anybody know how this works?

[@HarvestingTheSun]

hello. If I understand your question correctly, then all you need to do is open the myEnergi app, and drag the icon for your Zappi ABOVE the icon for the Eddi. That is how you set the priority between Eddi and Zappi if you have a full myEnergi setup.

[@marcosohngen5220]

OK 👍 I did not know about this! Thanks a lot. I‘ll try this when the system is running.

[@nickmarshall7019]

I have the EDDI and the Harvi but not the hub. Am i missing a trick here?

[@HarvestingTheSun]

Only if you’re interested in seeing all the data via the app and/or you want your Eddi to have the latest firmware. Then you need the hub. Otherwise your system will work just fine with Eddi and harvi. Hub is about £50 and just needs to plug into your internet router. Then you pair it with your Eddi and that’s it.

[@andrewjohnson3983]

@@HarvestingTheSun The My Energi Website says "eddi’s shipped from the 8th August DO NOT need a hub" so I assume the Hub functionality is now built into the Eddi and the Hub is no longer required?

[@HarvestingTheSun]

@@andrewjohnson3983 yes, I’ve heard the new generation Eddi’s have the hub built in.

[@johnmcguinness2847]

You did not mention one of the most important settings. You must ensure that all the devices are using the same rf-channel 1 to 8 otherwise no connection and much frustration.