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Subject: Re: [ocpp] Groups - CR Unit of Measure - Currency

Thanks, Brendan. That's absolutely fine, as long as we have a means to denote the currency -- that's the more IMPORTANT factor.

Rish Ghatikar
156 2nd Street, San Francisco, CA 94105
M: +1 510 710 6552 

From: ocpp@lists.oasis-open.org <ocpp@lists.oasis-open.org> on behalf of Brendan McMahon <Brendan.McMahon@esb.ie>
Sent: Monday, November 7, 2016 2:41:19 AM
To: ocpp@lists.oasis-open.org
Subject: RE: [ocpp] Groups - CR Unit of Measure - Currency

Hi Rish, (All),


I believe that using any currency symbols would not be a good idea, as only two are covered by ASCIII/ANSI code tables, so it would drop us deep into obscure parts of Unicode, an when you take the world overall, new currencies and/or currency symbols are not that rare.


Whenever/however currencies are formally introduced into OCPP (as part of tariffing and pricing or otherwise), they should always be identified by the internationally standardized three letter upper-case currency codes (“USD”, “CAD”, “EUR” ,“GBP”, etc.).


Best Regards,

Brendan McMahon | Systems Architect | ESB ecars | T: +353 1 702 6708 / +353 87 662 2150 | www.esb.ie




From: ocpp@lists.oasis-open.org [mailto:ocpp@lists.oasis-open.org] On Behalf Of Robert de Leeuw
Sent: 07 November 2016 10:33
To: Rish Ghatikar
Cc: ocpp@lists.oasis-open.org
Subject: Re: [ocpp] Groups - CR Unit of Message uploaded


Hi Rish, (All)


The current proposal is based on OCPP 1.6, DeviceModel and the discussion in LA.


Without tariffing & pricing and don't see a use case for things like: $/kWh. or even $ etc. 


So I would propose that the Tariffing & Pricing proposal will have to add units that are fitting/needed.


Complexity with adding things like: dollar, euro... then we will need to add them all. Which ofcourse can be done... 

I dont know the correct IETF/ISO/IEC standard, have to google it, but we should reference that specification in OCPP 2.0 IF we need a currency unit..

Kind regards,
Robert de Leeuw


Hoge Ham 85

5104 JC Dongen


John F. Kennedylaan 3

5555 XC Valkenswaard

T: +31 6 2857 2123
E: robert.de.leeuw@ihomer.nl


2016-11-03 20:55 GMT+01:00 Rish Ghatikar <rish@greenlots.com>:

As discussed, unit for "currency" is missing -- most of the dynamic pricing tariffs represent price of power and energy, for example, as, $/kWh or $/kW. Also, in certain instances "multiples" are used -- e.g., 2x, 4x, etc. that are indicative of the additional prices on top of the "normal" or "base" price that are determined between the utility and consumer. 




Rish Ghatikar

156 2nd Street, San Francisco, CA 94105

M: +1 510 710 6552 


From: ocpp@lists.oasis-open.org <ocpp@lists.oasis-open.org> on behalf of Robert de Leeuw <robert.de.leeuw@ihomer.nl>
Sent: Monday, October 31, 2016 2:12:44 PM
To: ocpp@lists.oasis-open.org
Subject: [ocpp] Groups - CR Unit of Message uploaded


Submitter's message
Hi all,

I have just upload the CR (Charge Request) for Unit of Measure.
Please take a look at it. Let me know if you have any remarks.

greetings Robert

-- Mr. Robert de Leeuw

Document Name: CR Unit of Message

Proposed Charge Request for Unit of Measure in the next version of OCPP.
New list of units and proposal to create it as an extensible enumeration.
Download Latest Revision
Public Download Link

Submitter: Mr. Robert de Leeuw
Group: OASIS OCPP Electric Vehicle Charging Equipment Data Exchange TC
Folder: Work items
Date submitted: 2016-10-31 14:12:26


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