Supply, Deliver, Installation, Testing, Commissioning, Operation, Handing Over and Maintaining PV-Diesel System for Wastewater Treatment Plant Project In Sana'a City, Yemen

New clarification added: Please note that these are the remining quotations (Q 15 to Q 23) as mentioned in this box above Q15 - Through electrical drawings divide the number of groupsString Inverter No. 1 , 24 Strings, each 22 PV modulesString Inverter No. 2 , 24 Strings, each 22 PV modulesString Inverter No. 3 , 24 Strings, each 22 PV modulesString Inverter No. 4 , 24 Strings, each 22 PV modulesString Inverter No. 5 , 24 Strings, each 22 PV modulesString Inverter No. 6 , 24 Strings, each 22 PV modulesString Inverter No. 7 , 24 Strings, each 22 PV modulesBut through civil drawings, the design shows that the number of solar panels for each group is 16 PV modules.This difference will require redesigning and redistributing the MOUNTING STRUCTURES.Please clarify this difference.Ans 15 -  For the MOUNTING STRUCTURES please refer to the DRAWING STR SAN-024 - STR - Part 1 of 1 , the electrical connection should be as per the DRAWING ELEC SAN-024 _Part 2 of 4 , PV mod. configurationWWTP-DW-MD-01 page 4. Therefore, please adhere to the specification in the drawing. Q16 - Regarding the Testing and Measuring tools we need clarified to  item I.9 (Substation testing tools and devices that measure and verify the performance and functionality of various substation equipment, such as transformers, circuit breakers, relays and protection systems. They shall used by substation engineers and technicians to ensure the safety, reliability and efficiency of the power system)This item includes devices that are not limited. Please indicate the required devices.Ans 16 - Please refer to the amended BoQ I.9 Q17 - The supplier of the SCADA system wants to know the following. 1, How many pumps and KW rating2, how many valve and size.Ans 17 - Please refer to the drawing file (DRAWING ELEC SAN-024 _Part 3 of 4) Electrical Single Line Diagram WWTP-DW-SL-01Q18 -Regarding the Site maintenance and commissioning this item do not have quantities.Please clarify this itemAns 18 - Please note that the Quantity is Lum Sum Q19 - We would greatly appreciate it if you could extend the deadline for the tender submission.Ans19 - Tender already amended to the 10 of Sep 2024 Q20 – ·       We need to inform you that we need extra time more than 10 days because the tenders need alot of works, so please extend the deadline.·        The items (H) for fire detectors, we need more clarification about it and if you provide us a diagram.·       Is the company obliged to provide diesel permanently after the work is done at the station, If yes, please tell us how much, and the period for supply the full Ans 20 –·       Please refer to Q19·       Please note the requirement as per The BoQ Item No. H, note is (Design, supply, install, test and commission of Fire Detection and protection system for ①substation and ② switchgear pay room.).·       No at all. It is not obliged to provide diesel permanently after the work is done.   Q21 - There are some problems in the BoQ, the number of cells for the unit price are not same as number of cells for total price specily in the items No. A.3, B.3, B.4, B.5, B.6.Ans 21 - Please refer to the amended BoQ I.9 Q22 – Please confirm if the following deviation are acceptable: AC combiner box IP 55 instead of IP 67Inverter 350kw IP 66 instead of IP 67Switchgear IP55 instead of IP 66Transformer IP54 instead of IP 67.Ans 22 - Please adhere the specifications in the BoQ  Q23 - Question: please let me know whether the contactors for the load shedding are existing at the distribution boards or it should be included in our technical and financial offer.Ans 23 - Please refer to BoQ item No B4.1 

New clarification added: Q1. Please advise in which document is the technical specification of the requested items in the BoQ.Ans1 - Please refer to the RFQ technical specification, BoQs, Technical Questionnaire , drawings , and scope of works .  Q2 - I. BOQ B4 - SCADA AND PPC  The manufacturer  want system architectureAns 2 - There is no Architecture. Bidders are encouraged to review the RFQ documents and specificationsQ3 - Ii. B5.3 POWER SET UP TRANFO 3000KVA we want TECHNICAL SPECIFICATION LIKEMax ambient temperatureNo Load LossLoad LossAltitudeAns 3 - Please refer to SCOPE OF WORK _WWTP_SAN-024 under 1.1 Sana’a General Climatic and Site Conditions. Q4 - 1.13 HV PARCHIAL DISCHARGE TESTER TECHNICAL SPECIFICATIONAns 4 - The BoQ including all relevant information BoQ Q5  - 1.14 1500 V I-V CURVE TESETER TECHNICAL SPECIFICATION  We want the drawing of WWTP DW SS O1 OF TRANFORMER INVERYER B 3 B5.8 BUSWAY IT IS OK IF THE SUPPLIER BRING   IEC, CE INSTEAD OF ANSI AND NEMAAns 5 - The standard remains the same as the system will be incorporated into existing systems. Bidder can offer equivalent and demonstrate how they are equivalent Q6 - G: SITE MAINTENANCE AND COMMISSIONING what YOU NEED?Ans 6 - Bidders review the requirement and submit the quote according to the RFQ requirement, please refer to the BoQ I- G Q7 - B7 LIGTHING SYSTEM·       HOW MUCH WATT·       SOLAR LIGTH·       WALL MOUNTENT OR POLE MOUNTENTAns 7-·       Please refer to the BOQ B7.1·       6b. LED - please refer to the BOQ·       6c. Refer to BOQ and drawing - item Lighting plan WWTP-DW-LI-01 Q8 - B6 VACUUMINDOOR OR OUTDOORAPPEARANCE AND PARAMETERSREMOTE CONTROL Ans 8 –·       Please refer to the drawing WWTP-DW-SL-01 A0 “GS B-1 SWGR (new, to be installed) This is part of the systems·       Refer to BOQ·       It’s a part of the system Q9 - Based on our previous experience, it is difficult to get permission to enter the wireless communication system with 3 MCCS (radio FM or any relevant means), for load shedding applications and they will be retained by the security authority. What can we do in this situation?Ans 9 - The bidder is in charge of the obtaining permission required to supply all the required equipments, UNOPS will be only involved in providing official letters for the importing equipment under the RFQ, please refer to the amended BoQ and Technical Questionnaire SAN-024. Q10 – ·       On page 7 at pdf file titled (DRAWING ELEC SAN-024 _Part 3 of 4), in the existing system area, there are (DG Control Panel for synchronizing, load sharing, Load Shedding, AND PV/DGs/Grid Controller) for port 1,4, and 5, Do it mean these DG Control Panels are already existing?·       So, we will only use control cables to connect them to the PV/DGs/Grid Hybrid Controller WITH PPC that we will install. If we are right, please let me know the brand name and the model of these DG Control Panels to help us in choosing the appropriate devices for the required system.Ans10 -·       please refer to the BoQ item B4.1 - 23 .  explaining the requirement ( the system shall be  supported  min.  6 DG's )·       Please refer to scope of work item 1.3 Mandatory Site Visit: All bidders shall conduct a no cost site visit to the project site prior to participating in the bidding for better understanding of site conditions and tender requirements. Q11 - Based on BOQ and the technical questionnaire, the nominal AC active power of the required inverter must be between 320 kw and 350kw, but I am wondering if it will be accepted to submit a 300-kw string inverter?Ans 11 - Requirements remain the same based on the temperature. Q12 - Regarding the SCADA system the solution maker is asking for the number of pumps and the size, how many KW. Ans 12 - Please refer to the drawing file (DRAWING ELEC SAN-024 _Part 3 of 4) Electrical Single Line Diagram WWTP-DW-SL-01 Q13 - We need you to response for these inquiries below:  Inquiries for SCADA system· Single Line Diagram (SLD) / Bus line diagram available?· Model and quantity of inverters· Communication method of inverters (Ethernet, RS485, etc.)· Shall we consider indoor (A/C cooled) or outdoor (fully shaded) installation for the monitoring cabinets?· Power control required? Eg. Zero feed in or power curtailment· Internet connection required?· How many trafo stations are planned?· Further hardware required (e. g. sensors)?In case of power control requirements, please share below details:· PPC requirement & Grid Code Document in case it is not simple Zero Export· Total Nr of POC on Site (POC means point of connection on site where we can read import/export from/to grid, where solar is connected)?· Shall we offer the Power Analyzer (Energy Meters) to read from each POC? If yes, any specific requirement for the Power Analyzers such as 0.2s class?· What is the distance between each POC and meteocontrol cabinet?Ans 13 - Please adhere to specification reference to amendment (3) in BOQ # I- B4  Q14 - Based on the scope of work, there are already existing diesel generators in the project site and the planned solar power system will operate with them in addition the new ones that we will supply and install, but according to the single line diagram, there are two generators in out of service state and two generators that you plan to install them in the future.  Ans 14 – Yes there are plans to install the two other generators in the future, please refer to scope of work item 1.3 Mandatory Site Visit: All bidders shall conduct a no cost site visit to the project site.NOTE : Remining quotations (Q 15 to Q 23) will follow in the second clarification box due to limitation number of letters in this box 

New amendment added #3: Amendment (3) :The purpose of this amendment is to:Extend the deadline for submission to the 10 of Sep 2024.Amendment  - BOQ SAN-024Amendment  - Technical Questionnaire SAN-024Meeting minutes for the pre bid meeting  Therefore,The e sourcing, the tap general under deadline for submission is amended to read asDeadline: 2024-09-10 09:00 UTCThe e sourcing, the tap documents is amended to add:Amendment  - BOQ SAN-024Amendment  - Technical Questionnaire SAN-024Meeting minutes for the pre bid meeting All terms and conditions are remaining the same 

New clarification added: 1-As mentioned at the technical Questionnaire that the installation environment has Salt air, high humidity, WWTP emissions and gases like CO2, CH4, NO2, so it is good to install Aluminum PV mounting structure instead of steel PV mounting structure to avoid the negative effects of the environment that can corrosive and damage the steel more than Aluminum.2-As mentioned at the BOQ the required steel must be hot galvanized steel (min galvanized 120mic) ,we think it is not possible to get this specifications for UPE-beams and IPE-beams.Answer : Please be informed that all Requirements remain the same

New clarification added: Dear Sir,regarding to the MV Station, after contacting the manufacturer, there are some nots from them as follows:1- smallest MV station ( Transformer size ) we can offer is : 4.4MVA  while the requested MV station size is : 2.5MVA..2- the voltage level of the transformer we can offer is 800V/11KV or higher than 33KV.. while the requested voltage level is 800V/3.6KV3- the vector group of our 4.4MVA station is Dy11 while the requested vector group is Dy11y11.. 4- our transformer is only double winded while the requested transformer is triple winding.. 5- RMU offered by sungrow is from DAQO and we cant offer the measuring panel in the RMU because it dose not fit inside the container.. while the requested RMU shall have measuring panel  6- RMU offered by us only have one incomer and tow outgoing feeders while the requested RMU shall have 2x incomers and 2x outgoing feeders.7- Protection in the LV panel is via fuse and not MCBs as requested8- we offer with the IP 65 rating for the LV panel while the IP requested is IP67Please adviseBest regards,Answeer : Please be infoemd that all the requirements remain the same for ALL 

New clarification added: Dear UNOPSWe request to extend the deadline for closing date it need more time as per request the companiesWith high respect and appreciationDear Bidders, If UNOPS is going to extend the deadline for this tender we'll announce it through UNOPS official channels (in side this tender) We would greatly appreciate it if you could extend the deadline for the tender submission.

New amendment added #2: Amendment (2) :The purpose of this amendment is to extend the deadline for clarification to the 20 of Aug 2024. Therefore, the e sourcing, the tap general under deadline for clarification is amended to read as:·         Deadline for clarifications 2024-08-20 09:00 UTCAll terms and conditions are remain the same 

New clarification added: Dear bidders,Please find the below clarification with response/s:Question 1: The Vendor submission section specifies two fields for Insurance Details and Insurances  1-Document name: Schedule 4.4 [Insurance Details and Insurances] 2 -Document name: Signed copy of Schedule 4.9 [Insurance Details and Insurances] However, the document itself only mentions Schedule 4.9.we kindly request clarification on this.Response: Kindly attach each returnable schedule under the respective checklist item. For example the reference to the "Insurance Details and Insurances" schedule is 4.9Best regards, 

New clarification added: Please extend the submission date since the project is multi brand.Dear Bidders, If UNOPS is going to extend the deadline for this tender we'll announce it through UNOPS official channels (in side this tender) 

New clarification added: please  kindly extend the  tender because  the  tender  is  big and  the  time  not enough  best regds Dear Bidders, If UNOPS will extnd the deadline for this tender we will anounace it through UNOPS offical channels (in side this tender)

New clarification added: since this project is multi-Brand which will take more time to achieve the request item, we would like to award us an extension of two weeks more.Dear Bidders, If UNOPS extnd the deadline for this tender we will anounace it through UNOPS offical channels (in side this tender)

New clarification added: reminderplease confirm us , is the EPA certificate necessary to be submitted for the generator ? , waiting for your replyAnswer :In accordance with RFQ Technical Questionnaire SAN-024, items B.5.2.9 and BoQ item B5.5, for the generator  "U.S. EPA Tier 3 Final emission standards EU/UN certified",. Bidders must provide supporting documentation, including the relevant certificates, to verify compliance with this requirement. 

New clarification added: Dear UNOPS , Regarding with EPA certificate , is the EPA certificate necessary to be submitted for the generator . Best regards ,Answer :In accordance with RFQ Technical Questionnaire SAN-024, items B.5.2.9 and BoQ item B5.5, for the generator  "U.S. EPA Tier 3 Final emission standards EU/UN certified",. Bidders must provide supporting documentation, including the relevant certificates, to verify compliance with this requirement.

New clarification added: Question: Regarding the CCTV System we need the following things to be clarified. 1. for the 6Mp Dome camera, please provide us if it’s a Fixed Camera or a motorized.Please refer to RFQ documents (BoQ, Technical Questionnaire, and other tender documents) 2. for the 6Mp Dome camera the standard is either 5Mp or 8Mp with the same specs.Please note these specifications are the min. requirement. 3. POE NVR, Please provide us with more information regarding the recording duration and the preferred resolution of the records. This will help us select the appropriate device.Please note these specifications are the min. requirement. 4. the 8MP IP outdoor camera” is not mentioned in the provided document whether the required type is Dome or Bullet.Please adhere to RFQ documents (BoQ, Technical Questionnaire, and other tender documents).

New clarification added: Please advise in which document is the technical specification of the requested items in the BoQ.Answer: Please refer to the RFQ technical specification, BoQs,Technical Questionnaire , drawings , and scope of works .

New clarification added: Question: Regarding the CCTV System we need the following things to be clarified. 1. for the 6Mp Dome camera, please provide us if it’s a Fixed Camera or a motorized.Please refer to RFQ documents (BoQ, Technical Questionnaire, and other tender documents) 2. for the 6Mp Dome camera the standard is either 5Mp or 8Mp with the same specs.Please note these specifications are the min. requirement. 3. POE NVR, Please provide us with more information regarding the recording duration and thepreferred resolution of the records. This will help us select the appropriate device.Please note these specifications are the min. requirement. 4. the 8MP IP outdoor camera” is not mentioned in the provided document whether the required type is Dome or Bullet.Please adhere to RFQ documents (BoQ, Technical Questionnaire, and other tender documents).

New clarification added: Please advise in which document is the technical specification of the requested items in the BoQ.Answer: Please refer to the RFQ technical specification, BoQs,Technical Questionnaire , drawings , and scope of works .

New clarification added: Hello, The meeting link you had sent for the online meeting is not workinghere you go with new link11-Aug-2024,  02:00 pm Sana'a time virtually via the following link: https://meet.google.com/joy-hfeg-ady

New amendment added #1: Amendment (1):Rescheduling for the pre-bid meeting for 11-Aug-2024 02:00 pm Yemen time. (An optional pre-bid meeting will be held virtually on 11-Aug-2024,  02:00 pm Sana'a time virtually via the following link: https://meet.google.com/joy-hfeg-ady). All bidders are STRONGLY encouraged to attend this meeting.Note: Due to technical issues pre-bid meeting planned to be held on 6-Aug-2024 11:00 am Yemen time was cancelled. As such the pre-bid meeting was rescheduled as the above.

New clarification added: Dear all,Due to a technical issue the pre-bid meeting that was scheduled for today wasn't held. As such the pre-bid meeting has been rescheduled  and the details will be shared the RFQ amendments that will be reflected in the system shortly. Once the RFQ amendment is out, an automatic notification by the system should be sent bidders.Please stay tuned.Best regards,

New clarification added: Hello, The meeting link you had sent for the online meeting is not workinghttps://meet.google.com/xow-oknu-vobHere you go with the meeting link :https://meet.google.com/xow-oknu-vob

New clarification added: We are having trouble accessing the meeting link, we get a message that meeting code is not correct.Please resend the link correctly or set another day for it or share with us the meeting points if it happened without us.Here you go with the meeting link :https://meet.google.com/xow-oknu-vob

New clarification added: We are having trouble accessing the meeting link, we get a message that meeting code is not correct.Please resend the link correctly or set another day for it or share with us the meeting points if it happened without us.Here you go with the meeting link :https://meet.google.com/xow-oknu-vob

New clarification added: Dear UNOPS, ,Please can you provide us the correct link for pre-bid meeting; because we cant jion the meeting with this link.Best regardsHere you go with the meeting link :https://meet.google.com/xow-oknu-vob