Home charge points (purchase/problems/questions) (See mod note post#1)

unkel

Nice write up, but you forgot the most important part: how much was the total charge for the install?

John (Nigel Daly) did my install too and he did a great job. As you say, all very professional, tidy, and quick. Mine was installed in March 2017 under the old free install scheme (for the first 2000 new EVs in Ireland)

bonoman66

rolion wrote: »

Great ad...

Personal,i am not a fan of Zappi due to that if you will have solar PV at some point in time, you need more than 5KW installed power to make sure you get benefits of the internal smart electronics (thats the main selling point of the unit).

Can we see the interior as well,please.

Thanks.

Thanks - I'm just hoping there'll be a Zappi App soon for it (think its meant to be forthcoming with the hub unit).

Sure - here a few interior pics.

The last one I took was taken before John (the Electrician) had put the Fuse Box panel filler back in so there is actually no gap like in the pic etc.


Hope this helps.

bonoman66

unkel wrote: »

Nice write up, but you forgot the most important part: how much was the total charge for the install?

John (Nigel Daly) did my install too and he did a great job. As you say, all very professional, tidy, and quick. Mine was under the old free install scheme (for the first 2000 new EVs in Ireland)

Total charge was €1112.30

I'll get the €600 Grant Back

Net Cost to me will be €512.30

Yes - I know I paid more than others but to me it was worth it in every way & I have no regrets. I have tried to do things & get jobs done as cheaply as possible (lowest cost / lowest tradesperson bidder) in the past & that has not always gone well.

No issues at all from start to finish & I don't mind paying what I did for the high level of service, attention to detail, responsiveness, ease of paperwork processing, knowledge that the person doing the work was expert in it specifically etc.. It was definitely well worth it to me.

ELM327

I think this is the reputation that Nigel Daly has to be honest, great work, top quality, but top prices too.

KCross

rolion wrote: »

Great ad...

Personal,i am not a fan of Zappi due to that if you will have solar PV at some point in time, you need more than 5KW installed power to make sure you get benefits of the internal smart electronics (thats the main selling point of the unit).

Can we see the interior as well,please.

Thanks.

Thats incorrect.
And the Zappi has more than Solar PV as its selling point.

All explained to you already!
https://www.boards.ie/vbulletin/showpost.php?p=108675996&postcount=185

unkel

Nice though that thanks to the tax payer, you got the total install done (including all materials) for less than the cheapest price you could have possibly bought the charger for

Nedved85

unkel wrote: »

Nice though that thanks to the tax payer, you got the total install done (including all materials) for less than the cheapest price you could have possibly bought the charger for

Probably only a small % of his own taxes to be fair

rolion

KCross wrote: »

Thats incorrect.
And the Zappi has more than Solar PV as its selling point.

All explained to you already!
https://www.boards.ie/vbulletin/showpost.php?p=108675996&postcount=185

@K

My working healthy principle is if i want to charge the car,i will give it full charge and not few hundreds Kw squezed out of Zappy along the day...

I respect your opinion but let's be technical...
Do you have Zappy and PVs, can you show some reports ,graphs !?
I have PVs and diverter for a while. My immersion diverter works same as the car charger.
If you want to see how they work under different conditions,day and time,month and sun vs cloud,you are welcome for a chat and a coffee anytime.

I can attach few screenshots of the PV generation and the amount of KW diverted to immersion when no one using any appliance in the house.
Below,thats a graph showing how the car will charge...



Below is my charger giving full 16A / 3,3KW to the car.
I like the car to be ready in 2 hours and not when Sun is shinning...
But,i stand to be corrected.

KCross

rolion wrote: »

@K

My working healthy principle is if i want to charge the car,i will give it full charge and not few hundreds Kw squezed out of Zappy along the day...

I respect your opinion but let's be technical...
Do you have Zappy and PVs, can you show some reports ,graphs !?
I have PVs and diverter for a while. My immersion diverter works same as the car charger.
If you want to see how they work under different conditions,day and time,month and sun vs cloud,you are welcome for a chat and a coffee anytime.

I can attach few screenshots of the PV generation and the amount of KW diverted to immersion when no one using any appliance in the house.
Below,thats a graph showing how the car will charge...


Below is my charger giving full 16A / 3,3KW to the car.
I like the car to be ready in 2 hours and not when Sun is shinning...
But,i stand to be corrected.

I'm not arguing how useful the Solar PV piece is. If the car isnt at home and plugged in while the sun is shining the Zappi is useless in that context. Likewise in the winter when the amount of energy your panels are producing is probably not even meeting your background load, so there is nothing to spare for the car so again useless in that context.

I was just correcting your statement that you "needed 5kW SolarPV to justify the Zappi as that was its main selling point".

What I'm saying is that the Zappi does more than SolarPV integration and you dont need 5kW of SolarPV if the Solar integration is important to you. Obviously the more SolarPV you have the more excess you will have available so the car will charge faster.

Personally, I think load balancing and load limiting are more important features and reasons to buy Zappi than the Solar integration. Thats my main point.

unkel

rolion wrote: »

I have PVs and diverter for a while. My immersion diverter works same as the car charger.

It is far more beneficial to charge your EV with excess PV production than to use a diverter. The former is worth 8c/kWh (night rate), the latter only about 2c/kWh (cost of heating with gas minus the cost of the diverter)

I've told you this (and did the sums) several times on the renewable energies forum, but you seem not very interested in the financials of renewables. Must be a nice place to be

Bob man

Is the zappi home charger any good

rolion

bonoman66 wrote: »

Total charge was €1112.30

I'll get the €600 Grant Back

Net Cost to me will be €512.30

Yes - I know I paid more than others but to me it was worth it in every way & I have no regrets. I have tried to do things & get jobs done as cheaply as possible (lowest cost / lowest tradesperson bidder) in the past & that has not always gone well.

No issues at all from start to finish & I don't mind paying what I did for the high level of service, attention to detail, responsiveness, ease of paperwork processing, knowledge that the person doing the work was expert in it specifically etc.. It was definitely well worth it to me.

Thanks for pictures.
As long as you are happy,all fine i guess ...but i try to match the long A4 feedback to a standard cabling job.
Tought is more than what i guessed i get for a €600 grant installation job.
Enjoy your EV !
Below a photo of my install for €100 and waiting for grant refund.



That reminds me of the PV installer company that i cannot name it a is on SEAI approved installer list.
He asked me to pay €1,700 to fit panels up on the roof,with all my parts waiting at the side. He charged for the "know-how"... two guys one full day and "health and safety" insurance type talking bulls.
I did it in the end with my local roofer that never touched a PV panel in his life before,took 4 hours and a 6 pack of Guinness for €300. And i learned how to do it ...

rolion

@ Kcross

Im not planing to change this topic in to Mythbuster scenario..or worst,get involved with you in polemics.
I learned a lot from you and from others here,thanks for that.

I've explained my logic,i attached screenshots, i stand to be corrected.
For a 3.3Kw EV car charegr you need a good PV installation array to take advantage of the named charger or to benefit of excess of energy from panels.
I dont think the on-board built car charger can support those variations,as above in my photo,from various voltage and charging cycles.
Regardign the load balancing,i dont have the need,cant see it useful to me,sorry for not taking in discussion.

I am very curious what the recommended specifications are from manufacturer .
Also,actually,anyone here having PV solar and the charger in use,and can show us some screenshots !? That will avoid any hot constructive unbiased arguments.
I repeat,i dont have the unit in use,cant say how it behaves in real life.

@unkel
Took you a while to reply here...on renewables topics you were faster.
I understand your advice but my EV car stays at home only Saturday to take advantage of the so called excess PV,as you call it. And,i hopo that Saturdays my wife works otherwise between cleaning,ironing,washing and cooking there is not too much juice left to squeze for the EV. And with the second EV on the way,cant think of using the PV.
Thats why the diverter is still connected,on a timer and pre-warm the bottom of the cylinder.
But,as you already know,December is the start of the very bad season of harvesting until March.. only yesterday i got the lowest of 700W all day all time.

KAGY

bonoman66 wrote: »

Total charge was €1112.30

I'll get the €600 Grant Back

Net Cost to me will be €512.30

Yes - I know I paid more than others but to me it was worth it in every way & I have no regrets. .

I got my Zappi installed at 600-600=0 ðŸ˜႒
Admittedly I got a great discount from Phil at auto electrics in the Zappi, and it was a no fuss install (short run, space on board etc, local electrician I.e minimal travel)
TBH, I was expecting it to be more, but it's working out for him as he'll be back next year to install PV!

ELM327

rolion wrote: »

Thanks for pictures.
As long as you are happy,all fine i guess ...but i try to match the long A4 feedback to a standard cabling job.
Tought is more than what i guessed i get for a €600 grant installation job.
Enjoy your EV !
Below a photo of my install for €100 and waiting for grant refund.



That reminds me of the PV installer company that i cannot name it a is on SEAI approved installer list.
He asked me to pay €1,700 to fit panels up on the roof,with all my parts waiting at the side. He charged for the "know-how"... two guys one full day and "health and safety" insurance type talking bulls.
I did it in the end with my local roofer that never touched a PV panel in his life before,took 4 hours and a 6 pack of Guinness for €300. And i learned how to do it ...

No offence, but that is quite literally the worst most untidy wiring job I have ever seen.
Did you give him the six pack before he started work?? :D

spakman

I don't qualify for the SEAI charger grant as it's a company car. Been shopping around for quotes but they all seems to be around €1k to supply and install a 32A charger.
Anyone able to recommend a competent electrician in Dublin area (west dub preferably) who will install a charger if I purchase it myself?

KCross

rolion wrote: »

@ Kcross

Im not planing to change this topic in to Mythbuster scenario..or worst,get involved with you in polemics.
I learned a lot from you and from others here,thanks for that.

I've explained my logic,i attached screenshots, i stand to be corrected.
For a 3.3Kw EV car charegr you need a good PV installation array to take advantage of the named charger or to benefit of excess of energy from panels.
I dont think the on-board built car charger can support those variations,as above in my photo,from various voltage and charging cycles.

The minimum, generally, an EV will take is 6A so if you have 1.4kW+ of excess at any stage of the day the Zappi can divert that to the car (if its at home, of course).

Maybe you are under the impression you need 3.3kW for the car to start a charge session and hence the need for 5kW Solar?

As you have pointed out, during the winter there will be little or no excess so the Zappi wont be diverting anything (nor will your water diverter) as the house will use everything that is generated.

The thing is the Zappi gives you flexibility and features that other charge points dont. It can do it and it is not that much more expensive than other charge points so why not give yourself that flexibility/option along with the other features it has as well.

If you dont value those features then fair enough. Its like extras on a car.... some people will pay for a fully loaded car.... others couldnt care less and would rather the cheapest version possible.... you appear to be the latter.

rolion wrote: »

Regardign the load balancing,i dont have the need,cant see it useful to me,sorry for not taking in discussion.

Load balancing and load limiting are required when you have two EV's.


So, if you have no Solar excess and/or the car is never at home during the day and you will never have two EV's in the house then fair enough, the Zappi has no value and then stick with the cheaper models.

rolion

ELM327 wrote: »

No offence, but that is quite literally the worst most untidy wiring job I have ever seen.
Did you give him the six pack before he started work?? :D

Yeah,looks nice,i like lots of cables !
I smell the sarcasm in your post ,but is not a finished job screenshot.
And ,it wasnt for you...

KCross wrote: »

The minimum, generally, an EV will take is 6A so if you have 1.4kW+ of excess at any stage of the day the Zappi can divert that to the car (if its at home, of course).

Maybe you are under the impression you need 3.3kW for the car to start a charge session and hence the need for 5kW Solar?

As you have pointed out, during the winter there will be little or no excess so the Zappi wont be diverting anything (nor will your water diverter) as the house will use everything that is generated.

The thing is the Zappi gives you flexibility and features that other charge points dont. It can do it and it is not that much more expensive than other charge points so why not give yourself that flexibility/option along with the other features it has as well.

If you dont value those features then fair enough. Its like extras on a car.... some people will pay for a fully loaded car.... others couldnt care less and would rather the cheapest version possible.... you appear to be the latter.



Load balancing and load limiting are required when you have two EV's.


So, if you have no Solar excess and/or the car is never at home during the day and you will never have two EV's in the house then fair enough, the Zappi has no value and then stick with the cheaper models.

Thanks,appreciate your time.
My charger is dearer than the quoted charger named above.
Has lots of options that i need time to figure out if to use it or not.
The PV definitevely not interested as i dont have enough juice left out of the 5Kw installed power.
Balancing,if i have two EVs,it can be done by two chargers.
Load limiting , checked.
Wireless connection and mobile app and realtime notifications,checked.

The feature of the PV that is quoted is i'm wondering how the internal car charger cope with variations from the charger,based on the excess PV generation numerous on/off,down and up? An immersion is resistive so it will take those cycles easily but a car charger !?? Dunno... maybe someone who has the EV,charger and the PVs will answer at some point !??

I stop here and no more arguments from my side for a type or another.
I dont work in the industry and i am not under comission...
Either one,enjoy the benefits.

KCross

rolion wrote: »

Balancing,if i have two EVs,it can be done by two chargers.
Load limiting , checked.

Two chargers wont necessarily do load balancing. A dumb charger, like most Rolec chargers, will simply provide max power or nothing. They are not capable of load balancing between two chargers. The Zappi and the Tesla charge points will.

Load limiting is an extension of that. Again, most charge points dont have that.

Not sure if you charge point will do load balancing and load limiting or not. What make/model did you buy?

rolion wrote: »

The feature of the PV that is quoted is i'm wondering how the internal car charger cope with variations from the charger,based on the excess PV generation numerous on/off,down and up?

The car can handle it as long as its above 6A. If it goes below that the charge session will stop and then restart when the sun comes out again.

You can also tell the Zappi that if it goes below 6A to pull from the grid to make up the balance to ensure the charge session continues. Its all configurable. Its not a feature I'm interested in either as my car wont be at home by day. Its the other stuff I'm intertested in.

DrPhilG

Thread hijack...

Been asking on EV Owners Facebook page, so I'll ask here too.

Considering an upgrade, Rolec charger is approaching 4 years old and with the i3 purchase I qualify for the grant.

I want something that balances the load, to negate the need for a priority switch. And also be future proof for integration with solar.

Any recommendations, aside from the Zappi?

KCross

DrPhilG wrote: »

Considering an upgrade, Rolec charger is approaching 4 years old and with the i3 purchase I qualify for the grant.

I want something that balances the load, to negate the need for a priority switch. And also be future proof for integration with solar.

Any recommendations, aside from the Zappi?

There are a few out there that do load limiting but I dont know if anyone has tried them in Ireland yet. The Zappi is king at the moment as it was first to market and it has load limiting and Solar integration and has local suppliers.

Some others have Solar integration or load limiting but not both.
https://circontrol.com/intelligent-charging-solutions/wallbox-series/wallbox-ehome/
https://www.solaredge.com/uk/products/ev-charger#/


This one also has Solar, load limiting and balancing (i.e. everything you need) but its premium priced(€1k+!)
https://andersen-ev.com/andersen-a2/


Its trying to get one that is available here, at a reasonable price, that can do it all.... The Zappi seems to be the only show in town at the moment at ~€580

DrPhilG

Best quote I have so far is €942, minus the €600 for the grant leaves €342.

The charger is €585 but I'd also need a Harvi unit to do the work of th priority switch and that's about €100 on its own.

The €342 net includes the charger and harvi and installation.

KCross

DrPhilG wrote: »

Best quote I have so far is €942, minus the €600 for the grant leaves €342.

The charger is €585 but I'd also need a Harvi unit to do the work of th priority switch and that's about €100 on its own.

The €342 net includes the charger and harvi and installation.

The Harvi is only required if you cant get a cable from your mains feed(either meter box or consumer unit) back to the Zappi.
Is that not possible for you?

Its down to effort involved I suppose. It might be easier to pay the €100 for the Harvi. Personally I try to avoid wireless connections as much as possible.

TheChizler

KCross wrote: »

So, if you have no Solar excess and/or the car is never at home during the day and you will never have two EV's in the house then fair enough, the Zappi has no value and then stick with the cheaper models.

Considering getting the Zappi as the wasn't much of a difference in price between it and the cheaper ones I was quoted and it really looked the best visually, no prospect of PV in the house. Which would be the cheaper ones in your mind? Have I been getting quotes from the wrong places?

rolion

TheChizler wrote: »

Considering getting the Zappi as the wasn't much of a difference in price between it and the cheaper ones I was quoted and it really looked the best visually, no prospect of PV in the house. Which would be the cheaper ones in your mind? Have I been getting quotes from the wrong places?

As K said.that charger runs the Irish market because is common language and wiring, and electricians knows how to install it. Ask to create an account or configure on the laptop and they say is a bad charger... or too much time.

I got mine from H E R E ...looks not the cheaper one in any form but integrated very well with mobile app remote control, along my other controls inside the house.
All in the house controlled of my phone.

Not sure how may help anyone but read above couple of posts and decide what you need...

Most important !!!: don't do any work until you receive SEAI grant letter approved


[url][/url]

TheChizler

I'm not sure what you mean about the app but pricewise that looks a good bit more expensive than the Zappi. It's the only advantage the app and WiFi?

rolion

TheChizler wrote: »

I'm not sure what you mean about the app but pricewise that looks a good bit more expensive than the Zappi. It's the only advantage the app and WiFi?

To be honest,i cannot answer that question as it's purely personal based choice. Do your home work...

Was upset that everyone recommended a single type of product that they were familiar with and,after searching online,went with the most expensive model.Easy peasy...

Batesy

“The Harvi is only required if you cant get a cable from your mains feed(either meter box or consumer unit) back to the Zappi“

I thought the EV Charger must be installed back to the consumer unit? I’ve read numerous times the meter box is off limits.

TheChizler

rolion wrote: »

To be honest,i cannot answer that question as it's purely personal based choice. Do your home work...

Well I asked for recommendations on cheaper models over Zappi and you mentioned this one, thought there might be a good reason for it considering its not cheaper at all

I'm doing the research on behalf of my mother and the Zappi so far is the only one she wouldn't mind plonked on the front of the house in terms of visuals. I can't see any programability in the charger itself really being used, so probably don't need that feature.

TheChizler

Batesy wrote: »

I thought the EV Charger must be installed back to the consumer unit? I’ve read numerous times the meter box is off limits.

That's for a current monitoring clamp, doesn't require any wiring at the meter.

KCross

TheChizler wrote: »

Considering getting the Zappi as the wasn't much of a difference in price between it and the cheaper ones I was quoted and it really looked the best visually, no prospect of PV in the house. Which would be the cheaper ones in your mind? Have I been getting quotes from the wrong places?

The cheap end of the market is more or less the Rolec's. They are about £100 cheaper than the Zappi if you buy direct from the UK.

TheChizler

KCross wrote: »

The cheap end of the market is more or less the Rolec's. They are about £100 cheaper than the Zappi if you buy direct from the UK.

Still cheeky money considering what you'd actually get away with in the box; a connector, some relays and very basic circuitry to implement the SAE J1772 protocol. I guess it will come down with economies of scale when EVs are mainsteam. The cynic in me would also say the various EVSE grants set the guide price around €5/600

DrPhilG

KCross wrote: »

The Harvi is only required if you cant get a cable from your mains feed(either meter box or consumer unit) back to the Zappi.
Is that not possible for you?

Its down to effort involved I suppose. It might be easier to pay the €100 for the Harvi. Personally I try to avoid wireless connections as much as possible.

My charger is in the garage, main fuse board is in the house and there is a smaller one in the garage.

Extra wiring is not an option.

unkel

TheChizler wrote: »

Still cheeky money considering what you'd actually get away with in the box; a connector, some relays and very basic circuitry to implement the SAE J1772 protocol. I guess it will come down with economies of scale when EVs are mainsteam. The cynic in me would also say the various EVSE grants set the guide price around €5/600

Agreed. Buy a second hand 32A EVSE and find a decent electrician who doesn't charge an absurd premium, and you can still easily get your charger installed completely free of charge.

Nedved85

Just ordered my Zappi Gen 2 from Nigel Daly - scheduled for early spring.

I have the electrical cable already wired to the location where the charger will be mounted.

So it's simply a case connect it all up at the chargers end really.

Went for the untethered option as I will upgrade my Leaf to another car(VW/Tesla) in 2020 and keep the Leaf as the run around car and get rid of the ICE

I think I will pick up a second type 2 to type 1 cable for the Leaf now and leave it in the charger, effectively making it untethered.

DrPhilG

How much more is the Zappi 2 compared to the original?

onlydave

DrPhilG wrote: »

How much more is the Zappi 2 compared to the original?

https://zappi.info/en/shop/products/product/31-zappi_v2_1f_socket

This is the only price I've been able to find. Nedved85 might have a different price from Nigel Daly. Tethered is another €50 on top

DrPhilG

onlydave wrote: »

https://zappi.info/en/shop/products/product/31-zappi_v2_1f_socket

This is the only price I've been able to find. Nedved85 might have a different price from Nigel Daly. Tethered is another €50 on top

I got a quote from Nigel a few weeks ago but didn't actually clarify if it was Zappi 1 or 2.so I've sent an email to check.

Nedved85

Supply cost €800 for the Zappi Gen 2 Untethered from Nigel Daly

I also got direct quotes to purchase the Zappi Gen 2 from Zappi themselves:

"The price of the new zappi and hub device are as follows:

Zappi 7kW untethered (white or black) = £695.00 incl. VAT, £579.17 excl. VAT
Zappi 22kW (3-phase) untethered (white or black) = £795.00 incl. VAT, £662.50 excl. VAT
Zappi 7kW tethered with type 2 6.5m cable (white or black) = £725.00 incl. VAT, £604.17 excl. VAT
Zappi 22kW (3-phase) tethered with type 2 6.5m cable (white or black) = £845.00 incl. VAT, £704.17 excl. VAT
Hub = £85.00 incl. VAT, £70.83 excl. VAT"

I'm happy to go with Nigel Daly directly though.

Anyone know what the hub actually does?

denismc

Nedved85 wrote: »

Supply cost €800 for the Zappi Gen 2 Untethered from Nigel Daly

I also got direct quotes to purchase the Zappi Gen 2 from Zappi themselves:

"The price of the new zappi and hub device are as follows:

Zappi 7kW untethered (white or black) = £695.00 incl. VAT, £579.17 excl. VAT
Zappi 22kW (3-phase) untethered (white or black) = £795.00 incl. VAT, £662.50 excl. VAT
Zappi 7kW tethered with type 2 6.5m cable (white or black) = £725.00 incl. VAT, £604.17 excl. VAT
Zappi 22kW (3-phase) tethered with type 2 6.5m cable (white or black) = £845.00 incl. VAT, £704.17 excl. VAT
Hub = £85.00 incl. VAT, £70.83 excl. VAT"

I'm happy to go with Nigel Daly directly though.

Anyone know what the hub actually does?

AFAIK the "HUB" allows myenergi devices to connect to the internet for software upgrades and for you use with the upcoming app.

stimpson

Reasonable price for the hub. I think I’ll be ordering one for myself. Hope it’s a diy install.

_dof_

Nedved85 wrote: »

Anyone know what the hub actually does?

The Zappi (and other Myenergi devices like the eddi and harvi) use a proprietary wireless network to communicate to each other. The hub connects your internet router to that wireless network which will allow the app to be used to control your Zappi.

Around 100 euro for it is a bit steep tbh, along with the other price increase for v2 of the Zappi.

rolion

I'm I the only one to see the advantages of the Juicy box !?
https://emotorwerks.com/eu/juicebox-pro-32

Doesn't have the priority thing and the so much needed PV either, but it looks like the best one out there, at least that's what my car says.
Have I done the wrong purchase, anyone using it, any feedback ..what I should / suppose to see different from others ? Or, as someone said up above, is a fcuking box with some smart circuits that does electrical conversion... ?

stimpson

rolion wrote: »

I'm I the only one to see the advantages of the Juicy box !?
https://emotorwerks.com/eu/juicebox-pro-32

Doesn't have the priority thing and the so much needed PV either, but it looks like the best one out there, at least that's what my car says.
Have I done the wrong purchase, anyone using it, any feedback ..what I should / suppose to see different from others ? Or, as someone said up above, is a fcuking box with some smart circuits that does electrical conversion... ?

Looks like a great charger if you have 3 phase, as you could charge at 22kW. But you likely don’t have 3 phase, so you will max out at 7.4kW. May as well get a Zappi as it’s cheaper, will charge at 7.4kW, has current limiting, so no priority switch needed and has the option for PV if you want that in the future.

TheChizler

_dof_ wrote: »

Around 100 euro for it is a bit steep tbh, along with the other price increase for v2 of the Zappi.

Harvi is £49 is it not? €55.70 with VAT adjustment. The £36 flat rate delivery might be an issue buying alone but not if bought with a Zappi.

rolion

Not sure about Zappi and the sensor...and the hub !
Mr. K explained few pages back how it works... I wonder if anyone here have a EV, Zappi and PV panels to come with tests and graphs...

Just wondering if the wireless protocol allows for instant disconnection in case of overloading the circuits (that's the priority switch, isnt ) and if it allows the PV diverting as well.
My hot water immersion diverter is wireless and is scanning the network every 10 seconds.

If it takes more than the time allocated to it, will not do a proper job...

So, please check and make sure MAYBE to go with wired, as that one I guess is scanning every second !??

stimpson

rolion wrote: »

Not sure about Zappi and the sensor...and the hub !
Mr. K explained few pages back how it works... I wonder if anyone here have a EV, Zappi and PV panels to come with tests and graphs...

Just wondering if the wireless protocol allows for instant disconnection in case of overloading the circuits (that's the priority switch, isnt ) and if it allows the PV diverting as well.
My hot water immersion diverter is wireless and is scanning the network every 10 seconds.

If it takes more than the time allocated to it, will not do a proper job...

So, please check and make sure MAYBE to go with wired, as that one I guess is scanning every second !??

My understanding is the Harvi is just a wireless extension for the current sensor that sits between your meter and fuse board.

It’s doesnt disconnect like a priority switch, but turns down your charge rate based on the total demand in the house. My spark was satisfied after testing it with my electric shower. Looking at the current drawn by the whole house, it never exceeded the limit. I’d have no doubt that the Harvi is giving real-time feedback, although I don’t have one.

If you have concerns then you should ring their support line. We found them to be very helpful.

_dof_

TheChizler wrote: »

Harvi is £49 is it not? €55.70 with VAT adjustment. The £36 flat rate delivery might be an issue buying alone but not if bought with a Zappi.

I was talking about the price of the hub, not the harvi. The hub was quoted as ~85 sterling above.

TheChizler

_dof_ wrote: »

I was talking about the price of the hub, not the harvi. The hub was quoted as ~85 sterling above.

An missed that sorry

randombar

Just wondering if you were future proofing, what size cable should you run for these charge points? Thinking five years time maybe a house with two.

I've just run a 5 core 10 square and I'm wondering if that's enough.