The little box that makes EV CHARGER INSTALLATION EASIER 😇 - MYENERGI HARVI

[@jamesmd]

Great video Guys, very clear and upbeat delivery!! Thanks a Mill!!

[@andrewsalmon100]

These are good videos. I am gaining knowledge.

[@ianandrew7010]

Got a Eddi, Harvi and Hub connected to my PV Array and Batteries yes I can confirm it's addictive watching the App,even though it's technically Winter I've not heated my water via my Oil Boiler since getting the myenergy items fitted a month ago, can't recommend them enough 👍

[@jamesbrooks6130]

Do you not need a G100 compliant CT (hardwired) as well as as the Harvi for Solar? As the Harvi is not G100 compliant.

[@brianwood5220]

Great video guys, very informative thanks

[@Maveric193]

Great videos guys. Please can you tell me how you can check if a CT like these is working properly please. Many thanks

[@michaelnoble5056]

Does this work the same way installing a CT clamp for a battery inverter?

[@TEX360]

excellent video

[@WoodieTwoGloves]

Solar PV with Eddie installed last June. Zappi installed last month. Should I be able pair E & Z? Not sure the Eddie is WiFi 🤔 also MyEnergy app showing import & export wrong way around. Presumably this is the CV clip wrong way around? Also Solar not showing on app - Solis 5kw inverter

[@timbarnard9742]

Hi quick question as to where to locate the harvi , the install has the solar POV on a sub board in the garage front of house , main db is in house DNO cupboard is at rear of house,. Would you put the two CT clamps in the main db with one on the line from the MCB to the garage monitoring the PV generation and the other on the tails to monitor the load on the cutout fuse Thanks for your help

[@georgeparker4869]

I have a Solar iBoost is that compatible with a Harvi?

[@anthonybragg]

On the initial install, you said about not sure of the wireless/wifi connection to the charger. I take it you had no problems with it?

[@efixx]

Works really well👍 NB it’s not WiFi between the harvi and Zappi - it uses their own FM protocol

[@Chris_In_Texas]

However based off the other video (spoiler alert), the DNO basically says no other equipment in there. So at that point what do you do?

[@alpselectrical]

Did the Harvi work OK signal wise? I have an install where the meter cupboard is around 20 metres on the opposite side of the house and then the charger will be in the garage

[@efixx]

We has about 20 meters line of sight and it’s been working fine for the last six months.

[@sandyfordd1843]

I know I’m very late posting, but you can extend the cable on the CT transformer up to 100 metres using a single pair over CAT 5 or 6 cable. It can save having to purchase the Harvi, (Harvis are great, you should really buy one), and if you’re already running in the mains cable to the charger then it’s a piece of cake to run some Ethernet cable with it, although you’re not supposed to have it running right beside mains cable due to possible interference, but I have done it on a 40m run and it works great.

[@radiotowers1159]

Having worked for a DNO as far as the placement of equipment on meter boards go, it was pretty common to find customers switchgear fitted on the same board.( 8 way consumer unit jammed in!) However if the meter board requires replacement especially on outside meter cabinets due to dampness or wood rot etc the rule was if the meter board contained only DNO equipment then we replaced the board as required, if the meter board has customers equipment on board then the meter board would be replaced at the customer’s cost.( think….supply cable cut underground, cablehead removed, metering business also involved to remove meters) So better to keep clear of the meter board.

[@efixx]

Wise words

[@sammyb304]

Any tips on how you would integrate an Eddi with an existing Honeywell Evohome system that controls heating of radiators and can also independently bring hot water up to a set temperature? What I would like to happen is to use the Evohome to set the hot water set point temp and schedule (as I do now), surplus solar energy to be diverted to hot water first, then to the Zappi. IF hot water set point temp is reached, gas boiler will not come on, IF set point temp is not reached, gas boiler will fire up to heat the water.

[@WoodieTwoGloves]

Had solar PV installed last June. Eddie diverts to heat water via immersion. I did have to replace the thermostat within the immersion as we noticed the water was too hot. Now set at 65C, usually reached by mid day. Even if somebody turns on the gas boiler to heat the water boiler turns itself off after a minute as the water is already at 65C.

[@grahamcompton9400]

Hi, the Eddi looks interesting but doesn't seem to be quite what I'm looking for. I need some form of wireless bridge to connect a remote CT clamp feed to the CT input of my Luxpower inverter. Are you aware of any products out there that would achieve this?

[@lukeholyoake1183]

Do you guys know what I would have to do get a solar battery storage to show on myenergi app? Any advice would be much appreciated

[@WoodieTwoGloves]

I have same issue. If the Zappi or other MyEnergy device is WiFi then pair with the inverter? There is a master and slave option in the advanced settings. Haven’t tried this. Currently using 2 apps sad.

[@matthew5050]

If your battery is AC coupled, you can add another CT clamp to your Eddi/Zappi/Harvi and set its type to “AC battery” in the settings.

[@MrKlawUK]

is it reuqired to hook up to a grid CT to ensure enough power? I only need solar as the zappi already has the grid CT. But if the solar isn’t sending any power (eg night/cloudy day) will the harvi be off?

[@minnie6392]

Thanks guys. I’m electric dumb so my question is…I have my internet extended via internal wiring, if I get a harvi, which also cuts into the power, are they compatible? Cheers.

[@Dog-whisperer7494]

Great video guy’s. Good bit of kit ? Then your WiFi go’s down and your you can’t charge your fancy electric car 😂 oh dear

[@tuboid001]

You could still charge the vehicle, you just wouldn't be able to see what is being used on your app.

[@MikeYoungeasytravel]

Have you ever installed an eddi/harvi system with an Enphase system?

[@ryang5561]

Did you not need to add extra insulation on those cables like you did to the doorbell wire?

[@efixx]

We'd add to this the Harvi doesn't have any physical connection to the mains supply as it's a self powered device.

[@johnhoward2104]

@PETER WILSON being double insulated though doesn't in itself indicate that the insulation is rated for the highest voltage present, so the voltage rating of the insulation should always be confirmed.

[@donatasdagilis8176]

hi , good video. can you tell me if you wired the zappi from the board using rcbo ? and is there already the rcd inside the charger ? where do we stand with the regs regards 2 rcd s on the same circuit?

[@deang5622]

The RCDs are covering different parts of the circuit so they are both needed if you want to protect the entire circuit and the user from electric shock risk. The RCD in the EV charger can only protect on its output. If a fault occurs on the output of the EV charger, then certainly the RCD in the EV charger will detect it and trigger. The first RCD that's in the consumer unit may or may not trigger. But as long as one of them does, it doesn't matter which. If the fault occurs between the consumer unit and EV charger, the RCD in the EV charger will not detect it, it can't. Only the consumer unit RCD can detect the fault. In this case, it's the consumer unit RCD which will trigger. A fuse or circuit breaker, as we know, protects against over current and it doesn't matter where in the circuit it is, as the live and neutral current is the same all the way around the circuit. But this is not the case for an RCD. The RCD can only protect what is downsteam from it, what is on its output.

[@hoobsgroove]

why should there be any issue connecting it to the metre box?

[@philb1730]

I installed an Harvi yesterday and it worked fine for a short while, then it started randomly going offline and then back online. I've checked the CT clamp and the connections inside the Harvi and all seems fine. Have you had the same problem? If so do you know of a solution? Thanks

[@efixx]

Might be a range issue between devices

[@philb1730]

@@efixx OK thanks for your reply 👍

[@azlansharom7011]

I have 2 consumer units. Does the Harvi need to be installed in the CU where the PV circuitry is connected to, or can it be installed on any of the CUs? Thank you.

[@iskrenivanov4385]

To monitor the solar gen it needs a Ct clamp on the solar live conductor

[@gino2465]

Guys what cable did you use for this ling 30m run

[@jennyhorner]

I’ve heard the Harvi can be unreliable sending a signal within the house. Have other people found this?

[@ma9mwah]

Isn't the Harvi limited to 64 amp? Which could cause issues for some installs

[@efixx]

No it can work up to 100A and can also be used in three phase supplies.

[@ma9mwah]

This was in a recent technical bulletin by myenergi "If you connect the grid CT via our harvi, then you must ensure you don’t set a grid limit in excess of 65 amps as this is the maximum that harvi can effectively measure • We will shortly change the firmware to stop the setting of a grid limit in excess of 65 amps when the grid CT is connected via a harvi"

[@robertsadler1916]

I was told by myenergi technical that they do not recommend the grid CT to be connected wirelessly, and should preferably be wired. If the Harvi and Zappi lose contact, the Zappi will charge regardless of the grid demand, potentially overloading the main fuse.

[@brianhewitt8618]

thankyou

[@efixx]

👍🏻

[@ashleywatson9977]

Hi can you use 2 harvi units with 1 Eddie to connect battery storage in the garage with 1 harvi and solar and grid in the consumer unit with the other ?

[@iskrenivanov4385]

Yes

[@zaksystems]

When extending the CT can you use a Cat 6 cable if so which pairs would go with the positive and negative

[@JasperJanssen]

Any one of the 4 pairs. And the cable is not polarity sensitive, but personally I’d use the solid color as positive and the matching stripe as negative.

[@tigertoo01]

Hi guys I haven't seen a clear explanation if the harvi pairs directly with the zappi charger or do you need an intermediary device such as a hub?

[@efixx]

No you don’t need a hub

[@tigertoo01]

@@efixx Thanks for the reply. i eventually worked it out and I have one installed :)

[@grant_HH]

Bit of a tangent, but if the Eddi is £3-400 plus install costs, compared to 60-80p per day of gas to heat hot water , adding an eddi to the system adds another year to the pay off of the solar PV is it really worth fitting for the moment at least?

[@efixx]

All depends on your particular tariff arrangements. This house doesn’t have any export tariff so is literally giving the energy away.

[@grant_HH]

@@efixx fair. I think my current import tariff means I'm limited to about 3p export, butt even then been quoted £1k for a zappi and as a replacement for an existing charger and seen that the v Eddi b is just shy of £400. Plus the cost of the hub. Water tank and EV charger at both in the garage as is the CU so probably don't need the harvi for that. It's deciding between doing one or both of those Vs £2k for an extra 5kwh of battery storage

[@efixx]

Yes the battery storage is a great idea - then you can do some serious energy trading.

[@korona3103]

20 Litres of water takes about 1KwH to heat so even a small 120L tank is something like a 6KwH battery. Even if it cost £600 to install it's acually pretty decent. I'm looking for a way to integrate renewables with air conditioners and heat pumps so you can kick them in as additional dump loads. Hopefully in the future you can add washing machines and so on. Obviously the home owner can do all this but it should be easy to automate it all.

[@grant_HH]

@@korona3103 agreed especially now that gas is 12p/kw instead of 3. Now I just need to decide between the Eddi & the iBoost

[@MarkC-1970]

There is an assumption here that is going to get people into trouble. That fuse holder is rated to 100A, that does NOT mean the DNO fitted a 100A fuse. Many have 60A or 80A fuses and unless you cut the seal (which you are not permitted to do) then you are just guessing the value. You could ring the DNO and ask them what fuse they installed and I will buy you a pint if they tell you...

[@efixx]

When you install an EV charger you submit a permission to connect ( ENA ) form. At this stage the exact rating of the fuse will be clarified by the DNO.

[@MarkC-1970]

@@efixx Interesting, I am quite new to EV and learning every day. My understanding was that you notified within 28 days and only needed permission if you identified a potential problem. I have done a bit of reading and apparently that is only below a MD of 60A. Like I say I am learning every day. This seems to pose an interesting catch 22 then and I would like to know what happens. Are the DNO's sending an engineer out to check the main fuse value before they allow you to proceed or are they just saying they are happy for the work to proceed if they have no network issues? If it is the latter then you have to set the Zappi to tap out at 60A anyway and so it is of no benefit to contact the DNO in the first place.

[@MegaMetinMetin]

@@MarkC-1970 buy him a pint you melon

[@unboxme4803]

@@MegaMetinMetin 😂

[@rogerthornhill6381]

You can stick anything you like in the meter box. It's the property of the homeowner not the DNO, but they can ask you to remove anything if it impedes the install of their equipement. That's the simple answer. Don't believe anything else.

[@wiseguy250505]

Ive had 2 of these fail

[@efixx]

What was the failure cause?

[@wiseguy250505]

Dunno they just stopped working

[@efixx]

okay - did you replace and all okay - go down a different route?

[@wiseguy250505]

I currently am using the charger after midnight and without the protection of the harvi. Waiting on email back from the company

[@efixx]

Let us know how you get on.

[@MichaelSmith-nk4yq]

Great video guys, I think I need your help. How can I contact you?

[@efixx]

Message via the website