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Specialising in selling EVs since November 2018!
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Discussion Starter #1
Hi Everyone, my company has 2 7KW posts in a 300 car car park. The system they use is quite clunky requiring a visitor the come inside, and get a card that is needed to start and end a charge.

I've started a conversation with the facilities team about what we could put in it's place and I was interested to know if any of you had comments or advice you would like to share.

I know they have installed 3 phase and they could probably fit up to 10 posts along the side where the cabling is. We have few regular users at the moment, a few people that work in the building have electric cars and we have the odd guest but of course all that is likely to change over the next few years. I guess we could be looking at 25% or 50% of cars being electric in 5 to 10 years.

Oh, it is probably relevant to say my building has the visitor center so we do get a lot of people popping in for meetings of anything from an hour to 9 hours duration. it is not all people there from 9 till 5, in fact even the staff will often only be there for a morning or for a few hours between meetings that are offsite.

Ideas welcome!
 

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Difficult. For a "normal" workplace P I would have said maximise the number of chargers, i.e. 16A. The situation you describe sounds like it would benefit from at least one 3p 22kW. At work we have the situation of 3 posts (one regularly broken) @16A for 100 spaces with currently 5 but in the near future 7 or 8 EV. Currently we manage the swap over by a WhatsApp group. However that works only when everyone is cooperative (and not everyone is :) We found 4-5h charging @16A (say 15kWh) is sufficient to cover the (one way) commute of most. Hence common opinion is rather to have more slow chargers than the hassle of swapping on few fast.
Back to the situation you describe, I'd say if you provide one fast station with the intention that it is been used for short(er) stay and only cars that would benefit from 3p you will find that this is difficult to enforce. Also when coming in for short visits there should not be an expectation to leave with a full battery anyway.
 

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Tbh I would go the full Hogan's have half 16a and half 32a.

The 16a ones for hybrid only and then 32a for BEV.

So only when the 32a ones are full can bev use the 16a ones.

This also means that both sets of vehicles can make maximum use of the sockets.

If cost isn't an issue then just get them all as 32amp units as they will help as more cars come on stream as long as the power can deal with it.
Use a calendar room in outlook as the way to book each space. Visitors can then request the same when they come to site and it saves any agro.
Staff on site that are nice can use a WhatsApp group to swap during the day when full.
When full a vehicle should move as well as it's only fair and decent if the electric is free as well
 

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Workplace charging is useful, particularly for those who don't have off-street parking. But for those who can charge at home it should become less important over time as typical battery ranges increase. Probably most useful in the short to medium term for those who end up using plugin hybrids.
 

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It really shouldn't be a case of arguing over 3kW vs 7kW posts. Any competent supplier ought to be able to give you load sharing, so you put lots of them in on the basis of 3kW (or even 2kW) each and if not all are in use then a proportion of them can draw the full 7kW.
 

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How about putting the chargers into your meeting room booking system, just like ordering tea and coffee? So who ever is hosting the meeting can offer pre-booked time on a charger to anybody who comes with an EV. It would raise the confidence of a visitor that they have reserved parking on arrival will be able to charge for a planned time and also ensures they do not overstay. Booking should maximise utilisation.

Looks good for the company for carbon footprint as it is positive encouragement to come to site by low carbon transport.
 

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Specialising in selling EVs since November 2018!
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Discussion Starter #7
Difficult. For a "normal" workplace P I would have said maximise the number of chargers, i.e. 16A. The situation you describe sounds like it would benefit from at least one 3p 22kW. At work we have the situation of 3 posts (one regularly broken) @16A for 100 spaces with currently 5 but in the near future 7 or 8 EV. Currently we manage the swap over by a WhatsApp group. However that works only when everyone is cooperative (and not everyone is :) We found 4-5h charging @16A (say 15kWh) is sufficient to cover the (one way) commute of most. Hence common opinion is rather to have more slow chargers than the hassle of swapping on few fast.
Back to the situation you describe, I'd say if you provide one fast station with the intention that it is been used for short(er) stay and only cars that would benefit from 3p you will find that this is difficult to enforce. Also when coming in for short visits there should not be an expectation to leave with a full battery anyway.
I think the co-operation thing will be difficult - we often have people visiting from other offices and of course, we have visitors. We would not be able to use WhatsApp because of corporate policy but Visitors wouldn't be able to use our IM system...
 

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Specialising in selling EVs since November 2018!
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Discussion Starter #8
Tbh I would go the full Hogan's have half 16a and half 32a.

The 16a ones for hybrid only and then 32a for BEV.

So only when the 32a ones are full can bev use the 16a ones.

This also means that both sets of vehicles can make maximum use of the sockets.

If cost isn't an issue then just get them all as 32amp units as they will help as more cars come on stream as long as the power can deal with it.
Use a calendar room in outlook as the way to book each space. Visitors can then request the same when they come to site and it saves any agro.
Staff on site that are nice can use a WhatsApp group to swap during the day when full.
When full a vehicle should move as well as it's only fair and decent if the electric is free as well
It sounds a bit kludgy, having to book a charge every day would be time-consuming, we want it to be as frictionless as possible. I was thinking of advising we have two ChaDEMO units. this would mean it would be practical for people to visit the office from much further away, even if they were only coming for a short meeting.
 

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Originally Oracle had those not needing the special card, I’m pretty sure some locals took liberties.

As a remember didn’t Microsoft pay for those units in the first place, I tried before I left to get them to install at the Leeds office but Oracles default no spend policy kicked in.
 

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Specialising in selling EVs since November 2018!
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Discussion Starter #12
Originally Oracle had those not needing the special card, I’m pretty sure some locals took liberties.

As a remember didn’t Microsoft pay for those units in the first place, I tried before I left to get them to install at the Leeds office but Oracles default no spend policy kicked in.
Hi Jack,
Are you ex-Oracle then or current?
 
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