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Minutes of the pre-bidding conference ITB 02/12 Smart metering Date: 10 May 2012 Time: 10 AM Place: conference was organized via Skype Attendees: Mr. Tomislav Veliki, Project Coordinator Mr. Tomislav Stasic, Technical Expert Ms. Jasmina Stipula, Procurement Associate Mr. Leo Lisac, Procurement Assistant – Observer Mr. Flemming Christensen – Representative Utiligence Ltd., United Arab Emirates Mr. Mico Dujak – Representative Ericsson Nikola Tesla, Croatia Mr. Juraj Gospodaric, Lipapromet d.o.o.and Kampstrup A/S, Croatia Mr. Velimir Racan, Racan ELEKTRONIKA, Croatia Mr. Darko Vranesic, Atos, Croatia This document is not a transcript of the pre-bidding documents. These are explanations in writing for the questions raised at the conference. The answers given in the document are fully in line with the answers given during the conference. Mr. Flemming Christensen – Representative Utiligence Ltd., United Arab Emirates 1. The tender has been floated number of times. I would like to know what is the reason behind. This is not the same tendering process. Each time there were different buildings specified in specification. 2. You are asking for „one hour“resolution for data to be presented why is not that more finegraned? I would have expected a one minute resolution? If you are coming from industry maybe the „one minute“ is very important but for the building observation analysis „one hours“ is enough. Even lower values could be accepted. For the buildings it is not needed to be that fast. 3. I have seen that you want for meters to be connected. So we should use existing meters pulses for the building information for maintenance of the building or for the tenants? Tenants should not use this system as a billing system. This is the system for analysis of energy consumption. It can serve for the technical personnel on the specific objects. Mr. Mico Dujak – Representative Ericsson Nikola Tesla, Croatia 4. What is exactly an isolated switch amplifier? Can you explain that? It is on the page 23 of the procurement notice? Isolated switch amplifier is galvanic barrier. It is divided in two zones because gas meters are in Ex zone so you need to split Ex zone and the rest of the system or the rest of the building or the environment. This is required by the Law and is demanded from the Local Utility Gas Company. 5. On page 26 in technical specification you are looking for 5 water meters but in the engineering part the quantity is 9? How many meters do you need 5 or 9? 5 water meters stated in these specifications needs to be change while connection should be made for 9 water meters. So you should change and connect 5 water meters and connect 4 existing meters. 6. Can we get some more information about the existing meters? What type of gas or water meters are installed at these 5 locations? Can you give us manufacturers? There are two types of meters: ZMD series, 405 or 410 Iskra type 801 or 851. Water meters are mainly from IKOM as this is Zagreb area and the IKOM is distributer of water meters. And gas meters are mostly Instromet. Detailed list of meters will be provided to all participants as an attachment to this Minutes. 7. Can we visit this location? If necessary this can be organized for all the companies. The schedule for site visit is the following: Friday, 18 May 2012 10.00 hrs for the Ministries and Monday, 21 May 2012 10.00 hrs for the Hospitals Rebro and Petrova. Interested representatives from the companies should confirm their attendance to Mr. Tomislav Veliki Tomislav.firstname.lastname@example.org not later than Thursday, 17 May 2012 at15.00. Juraj GOSPODARIC, Lipapromet d.o.o. and Kamstrup, Croatia For the time being we do not have questions. Velimir RACAN, Racan electronika, Croatia 8. At the beginning you mentioned that there are several communication technologies from the central unit to ruter vpn unit and central software EMIS and you mentioned LON talk and BAC net and IP so we can choose among this? Yes you can choose among this. 9. If we can choose among mentioned solutions and in the specification of the equipment there is equipment which is unnecessary for the solution we would be able to develop (for example there is extension module BACnet/IP that we do not need and also do not need several converters from M bus to RS232) can we avoid this several pieces of equipment that are specified? Of course. 10. There is requirement for optocoupler 230 VAC and relay. What these are used for? They are used for dividing the power meter and the rest of the system. It is demand from the local electrical company. They do not want to be connected directly to the terminals power meters. They want splitting and that is why we need to use it. 11. What about relay? Relay serves for changing of tariff. On each object usually you have two tariff systems. Relay serves to divide tariff from the meter and the rest of the system. That is also demand from the local utility company. 12. But is not the meter that it has two tariffs so it records one tariff and it switches to another? We are using the signal from the power meters so the power meter is giving the signal to the data acquisition system. 13. But again if we have a solution we can read the meter directly? Yes if you have some kind of opto device and if local utility company allows this kind of solution. In case like this please provide us with the utility company confirmation in writing. Darko VRANESIC, Atos, Croatia 14. In addition to expected VPN tunnel is there any other communication method that needs to be supported now or in the future like RF or GPRS? Do you mean the connection from the central unit to the EMIS system or to the lower field? It may be both. From the meters to the concentrator there is couple of systems that could be used: GPRS, RF Communication and hard wire communication. That is between the meters and the central unit. But from the central unit and the EMIS system we want to have VPN tunnel because of the stability of the connection. 15. What is the security level required for the communication through the VPN tunnel, any extraordinary? It may be encrypted but it is important to have right information for EMIS so that data can be integrated to the EMIS system. 16. Existing meters that you already have in place for which the integration needs to be implemented; can you tell us for all of them from which manufactures they all are? The power meters are from Landis & Gyr and Iskra Company, water meters are from IKOM, and gas meters are from Elster Company and in some cases Rombach G types like G4 OR G6. 17. Is there any requirement now or in the future for in house display interfaces? What do you mean by the in-house displays? In the smart metering systems there may be or may not be required. Meaning that in the buildings there is a particular display which will show different type of data, information, percentage or that could be concretely gathered from the meters? You mean software that would display this data? No I am asking for necessity or requirements for in-house display? Because if there is no display there is no need for software as well. If you are asking for the software, the software exists. And there is specification for the computer and display which will show this data. The computer is connected to the central system and there is no special requirement. 18. So the computer on sites is fed with the information from the central system not locally. Not locally that is right. 19. Why is that so? Because this is the solution we tried and it worked. 20. But as you mentioned before the other type of solution may be imposed or suggested? Yes but you should consider when offering solution that the contract will be awarded based on lowest price. The overriding criteria in this particular tendering process would be price among responsive offers. Velimir RACAN, Racan electronika 21. There are two steam meters in two objects. According to specification they already have pulse sources or mA. It is 4-20 mA or pulses. Ministry building has pulse source steam meter and the Rebro hospital has mA steam meter. 22. If we want to reduce the price in some situations due to long cabling RF solutions would be more appropriate than wire solution. It is suggested to use hard wire. Use RF only if it is necessary and if the meters are outside of the buildings like it is regular situation for the water meters. Just to mention that significant part of the contract is maintenance part so you should count that in when offer RF because in maintenance period you might have to change batteries etc... Price for hard wire is really high and if we have a good solutions the price between hard wire and RF is not comparable. When you have to change the meter you can change the batteries as well. Technical solution should be in line with the description /specification in the tendering process. You cannot offer different solution that is not in line with the specification. If in the specification is written that you can use RF or hard wire you can use RF instead of hard wire. 23. Is deadline going to be prolonged? Having introduced the site visit the deadline will be prolonged to 29 May 2012 at 12.00 hours. 24. Will the reference from parent companies or other companies in the group be accepted? The references from the parent company or the company within your group will not be accepted.
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