When will manufacturers start manufacturing meters on the new key or should it specifically be asked for?

This should be asked for.

Should all meters manufactured that are in storage be updated before installed or can they be installed and flagged on the vending system for the key change to be issued on first purchase?

It is always better to update the meters in storage since this will not require customer input later, but both are possible.

My question relates to the risk of reusing tokens on existing updated vending systems, which can issue both KR1 and KR2 tokens. If the meters in the field are not updated by 2024, the original purchase tokens can be reused. Is the only solution to counteract this threat to issue KR2 vending tokens on the vending system or can the original KR1 tokens still be used in the existing meter as they would not have to purchase these via the upgraded vending system? This is a huge risk to metros, as I doubt all meters will be upgraded in time and the risk of reusing tokens will definitely filter to our customers.

The original purchased tokens cannot be re-used since the meter will either see the token as OLD (if the TID in the token is older than the oldest TID in the meter memory), or the token will be seen as USED (if the TID value is in the TID memory of the meter). There is NO danger of token re-use.

Questions to Technical Consultant re: Meter Testing

I have tested 19 meters from 10 different companies and several manufacture dates.

How many of the meters were not TID roll-over compliant?

All were compliant.

Please provide manufacturer and serial numbers of failed meters.

None failed.

Will consumers current utility balance carry over or will it be wiped clean with the TID rollover?

The amount in the meter will not be erased and will be carried over Only the meter key will be changed, and the TID memory reset to all zeros.

Does Key Change result on clearing meter's data?

The TID memory will be cleared. The meter key will change. The SGC value that can be read from the meter will also be reset to 0 for meters that only accept 2 key change tokens. The KRN will change to 2. The current credit value and other operational data will not be affected.

A bigger part of the utilities will not be ready for the TID Rollover on 24th November 2024, will it be possible to clean the meters memory after 2024? Is there any way to do the KCT if the software is not updated?

Yes, it will be possible, but the meter will stop dispensing electricity, water or gas once its credit runs out. There is no way to do the TID rollover without updating the security module and the vending system.

Would there be a technical document for the update of the meters in STS 2 EDITION?

There is already a document (STS1800-3) that describes the process. There are also specifications (STS600-8-6) that describe the new communications protocol to the security module.

Most manufacturers do not put a base date in their Nedisys file, how does one distinguish/know which meters have a base date of 1993 and which ones are already set to 2014?

These records need to be kept in the database of the vending system once the TID rollover project starts.

If all meters tested after 2014 do not need to be rolled over, how do we verify this with the Meter Manufacturers for meters manufactured after 2014.

Only meters that have been manufactured with a base date of 2014 need not be rolled over.

How do we confirm that meters were certified prior to 2014?

Their certificate will state the date of certification.

If the customer enters the incorrect token or in the wrong order, can it just be re-entered in the correct order or does a new token need to be generated?

Key change tokens can be entered in any order, however, if the customer is supplied with the key change tokens as well as a credit token on the new base date, then the credit token must be entered after the key change tokens. If he tries to enter the credit token first, it will be rejected – then he simply enters the key change tokens, and then the credit token.

What are the cost involved to test meters for compatibility by the STS Association?

No cost – just send the sample meter to the STSA – it must be coded to a default code since the STSA does not have access to the live vending key.

What is the turnaround time for meter compatibility testing by the STS Association?

For TID rollover testing, approximately one week, depending on workload.

Will all “STS magnetic strip meters” be able to be rolled over via the magnetic strip key change? Will the customers be able to do this themselves or should each customer be visited by the utility?

Yes, they will be able to be changed. The change can be done by the customer or the utility.

Can Manufacturers share a database of meter models and serial numbers that are not TID compliant?

This needs to be done in conjunction with the Manufacturers. Certified products prior to 2014  (Common Documents)

Are there any challenges associated with entering the special key change token into the meter, e.g. will the meter go blank or stop working?

No – all meters MUST accept the TID rollover key change if they are compliant.

Can the token be entered remotely for smart meters?

Yes, it can.

Please provide more information on the issues with meters purchased prior to 2014?

Meters purchased prior to 2014 were not subject to the compliance tests as specified in the STS531-xx documents, which were only published in 2014. These documents contain tests to check for compliance to the TID rollover functionality as specified in IEC2055-41. It must be noted however, that all meters, since the initial publication of the IEC62055-41 specification in 2007, must comply with the TID rollover functionality.

Meters purchased from which date would be STS Edition 2 compliant?

All meters tested after 2014. Edition 3 of the IEC620055-41 was published in 2018, along with a letter explaining STS Edition 2. A one-year grace period is given for all meters and vending systems to comply with the new edition. Therefore, any meters or vending systems tested from May 2019 and later must comply with STS Edition2. However, during the 1-year grace period, some meters may have already been tested to STS Edition2. The certificate for the meter should be checked to see which edition it was tested to.