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Zappi charge points

Jeditraining1

Anyone know who is the wholesaler for Zappi chargers in the Republic of Ireland? I'm more so looking for information than to buy one.

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TheChizler

DrPhilG wrote: »

Fair enough the Zappi would be almost free if he does the install but if its going to cause more troubles than benefit then why bother?

At least the Zappi attempts to not use the battery storage to charge, other ones not aware of it at all would just deplete it completely, right?

TheChizler

KCross wrote: »

Why won’t you have night rate electric if you have an EV?

I was sure they'd be getting it in my mother's place but after monitoring usage for a while she uses less than 4 kWh/day charging at home so not worth getting night rate. The Kona's wasted on her!

She has driven Cork-Dublin 3 times in the last 2 months so it's been needed from that perspective.

She's considering PV so that would be even less of a reason to get it too.

KELTICKNIGHTT

KCross wrote: »

Anyone can get night rate. You just call your provider and ask for it. They are obliged to give it to you.

I give it a go and see.hopefully your right

DrPhilG

I'm starting to think there's no point in getting the Zappi. I almost never charge on day rate anyway so it wouldn't be any benefit.

If I stick with my trusty Rolec I'll continue to charge on night rate anyway. Can the battery be set to not discharge overnight? That would prevent the battery charging the car.

My installer insists that there will be issue with the Zappi and the DC coupled battery but he isn't giving any explanation as to why he says it will be fine but Myenergi themselves say it could be an issue.

Fair enough the Zappi would be almost free if he does the install but if its going to cause more troubles than benefit then why bother?

KCross

KELTICKNIGHTT wrote: »

Only have 24 he rural rate I can ask but was told that by provider before

Anyone can get night rate. You just call your provider and ask for it. They are obliged to give it to you.

DrPhilG

KELTICKNIGHTT wrote: »

Only have 24 he rural rate I can ask but was told that by provider before

I'm in rural Donegal and have night rate.

KELTICKNIGHTT

KCross wrote: »

Why won’t you have night rate electric if you have an EV?

Only have 24 he rural rate I can ask but was told that by provider before

KCross

KELTICKNIGHTT wrote: »

Was looking at zappi but wont have night meter Electric rate. Still haven't made up which charger I'm getting

Why won’t you have night rate electric if you have an EV?

KELTICKNIGHTT

Was looking at zappi but wont have solar setup and wont have night meter Electric rate so wasn't sure if worth getting. Still haven't made up which charger I'm getting

unkel

Gotta agree if you pay the going rate for parts and for the install. Did you see my battery calculation here:

linky

n97 mini

unkel wrote: »

:eek: :eek: :eek:

A lot of people will have a problem with that. Pretty much every Irish PV install that gets the battery grant is a setup with a hybrid inverter, so using the battery on the DC side

Charging the car from the battery is a very bad idea in terms of cycling and lifespan of the battery. Even with the full subsidy, cycling a battery costs a lot more per kwh than the night rate of 8c. The battery is there only to provide electricity that would otherwise have been bought from the grid at the full day rate of say 18c

The whole point of the Zappi is to only charge with excess solar (or charge at night rate)

From what I can see, the Zappi is probably the most mis-sold piece of equipment in this country, along with solar diverters. Batteries are in second place.

unkel

jimmyging wrote: »

Originally Posted by Myenergi
The Zappi prefers to have an AC coupled battery due to the fact that you can apply a CT clamp directly to the feed of the battery so that in your case the Zappi will see what the AC battery present. The CT clamp will need to be set to "AC Battery" in the CT options.

The DC coupled batteries can be problematic. The issue they have is that they can discharge if they detect power from the grid, which means the Zappi will be using the stored power from the battery to charge, effectively discharging the battery. Within the Zappi you can configure export margins 100 W / 200 W / 300 W which means the the power will be ignored but this doesn't always work effectively.

:eek: :eek: :eek:

A lot of people will have a problem with that. Pretty much every Irish PV install that gets the battery grant is a setup with a hybrid inverter, so using the battery on the DC side

Charging the car from the battery is a very bad idea in terms of cycling and lifespan of the battery. Even with the full subsidy, cycling a battery costs a lot more per kwh than the night rate of 8c. The battery is there only to provide electricity that would otherwise have been bought from the grid at the full day rate of say 18c

The whole point of the Zappi is to only charge with excess solar (or charge at night rate)

TheChizler

jimmyging wrote: »

Originally Posted by Myenergi
The Zappi prefers to have an AC coupled battery due to the fact that you can apply a CT clamp directly to the feed of the battery so that in your case the Zappi will see what the AC battery present. The CT clamp will need to be set to "AC Battery" in the CT options.

The DC coupled batteries can be problematic. The issue they have is that they can discharge if they detect power from the grid, which means the Zappi will be using the stored power from the battery to charge, effectively discharging the battery. Within the Zappi you can configure export margins 100 W / 200 W / 300 W which means the the power will be ignored but this doesn't always work effectively.

Ah, gotcha. That's probably poor wording on myenergi's part. They're referring to where the battery, solar, and inverter are all the one system and the PV Direct Current is more or less directly used to charge the battery, or where the battery and PV are independent systems each with their own inverter, connected with your house AC wiring.

I think what they're saying is that with the AC coupled system the Zappi can monitor the current from the battery inverter and PV inverter independently and only charge the car when the battery isn't charging or providing power. This avoids the car being charged by the battery system (is this a bad thing? I suppose it won't last long).

Otherwise it doesn't know if power is coming from the solar or battery and the only way to know if excess PV power is being produced is to only kick in once a certain threshold of power being sent back to the grid is reached.

That's probably not quite what's going on as I've never thought about this before... Will happily be corrected! Can't speak about brands unfortunately.

jimmyging

Originally Posted by Myenergi
The Zappi prefers to have an AC coupled battery due to the fact that you can apply a CT clamp directly to the feed of the battery so that in your case the Zappi will see what the AC battery present. The CT clamp will need to be set to "AC Battery" in the CT options.

The DC coupled batteries can be problematic. The issue they have is that they can discharge if they detect power from the grid, which means the Zappi will be using the stored power from the battery to charge, effectively discharging the battery. Within the Zappi you can configure export margins 100 W / 200 W / 300 W which means the the power will be ignored but this doesn't always work effectively.

TheChizler

jimmyging wrote: »

if dc batteries dont work with zappi what type/make of batteries work best with zappi ,any reply appreciated

What do you mean exactly?

All batteries are DC

jimmyging

if dc batteries dont work with zappi what type/make of batteries work best with zappi ,any reply appreciated

DrPhilG

Evd-Burner wrote: »

That's fine and normal.

Check what the hybrid inverter export margin is and set the Zappi to be higher. That way the battery will not deplete and it will also take priority over the Zappi.

It shouldn't discharge the battery as far as I am aware.

Thanks

Why the hell are the Zappi manufacturers telling me that it will?

Gumbo

Off topic, sorry but Rolec are launching a smart charger too.
It can charge your EV from Solar alone or solar plus grid.

Will be available in 3.6kw and 7kw versions.

Evd-Burner

That's fine and normal.

Check what the hybrid inverter export margin is and set the Zappi to be higher. That way the battery will not deplete and it will also take priority over the Zappi.

It shouldn't discharge the battery as far as I am aware.

DrPhilG

Finally heard back from Myenergi, they say to avoid a DC coupled battery:

Myenergi wrote:

The Zappi prefers to have an AC coupled battery due to the fact that you can apply a CT clamp directly to the feed of the battery so that in your case the Zappi will see what the AC battery present. The CT clamp will need to be set to "AC Battery" in the CT options.

The DC coupled batteries can be problematic. The issue they have is that they can discharge if they detect power from the grid, which means the Zappi will be using the stored power from the battery to charge, effectively discharging the battery. Within the Zappi you can configure export margins 100 W / 200 W / 300 W which means the the power will be ignored but this doesn't always work effectively.

And the quote I have for solar includes..... A DC battery.

stimpson

support@myenergi.uk

I’ve found the support team to be pretty good. Responses within 24 hours. You can call them too. Number is on the website.

Nedved85

sales@myenergi.uk is the only one I have - worth a shot

DrPhilG

Anybody have an email address for Zappi support?

I emailed them via Web form last week and they replied pretty quick, but told me that the tech support team would follow up with more info. Nothing since.

I'm looking for clarification and advice on the possible issues with solar connectivity reported here.

DrPhilG

Mickeroo wrote: »

Surely a thunderdome style fight to the death would be more fun.

Hey if you organise it I'll provide the prize.

Mickeroo

DrPhilG wrote: »

In the interests of fairness, it'll be going up on the "for sale" section here on boards and on the Irish EV Owners buy&sell page.

Surely a thunderdome style fight to the death would be more fun.

DrPhilG

In the interests of fairness, it'll be going up on the "for sale" section here on boards and on the Irish EV Owners buy&sell page.

Black_Knight

DrPhilG wrote: »

I should be getting a Zappi fitted in a few weeks. Essentially free as the guy doing my solar installation is charging €700 supplied and fitted. €600 back for the grant and then I'll sell my old Rolec.

Happy_Harry wrote: »

Feel free to PM when you are ready to sell your old one.. in the process of ordering a car and I don't qualify for the grant as it is a company car, so looking for 2nd hand..

I'd be interested too! If it's a Type 2, 32Amp one.

Happy_Harry

DrPhilG wrote: »

I should be getting a Zappi fitted in a few weeks. Essentially free as the guy doing my solar installation is charging €700 supplied and fitted. €600 back for the grant and then I'll sell my old Rolec.

Feel free to PM when you are ready to sell your old one.. in the process of ordering a car and I don't qualify for the grant as it is a company car, so looking for 2nd hand..

DrPhilG

I should be getting a Zappi fitted in a few weeks. Essentially free as the guy doing my solar installation is charging €700 supplied and fitted. €600 back for the grant and then I'll sell my old Rolec.

_ned_

@stimpson: Thanks for that, will check it out when I get home. Appreciated!