RETENDER - Establishment of Long Term Agreements for the Supply of Containerised Solar Mini-Grids for UN Web Buy Plus
UNOPS
RETENDER - Establishment of Long Term Agreements for the Supply of Containerised Solar Mini-Grids for UN Web Buy Plus
Invitation to bid
Reference:
ITB/2024/54866
Beneficiary countries or territories:
Multiple destinations (see 'Countries' tab below)
Registration level:
Basic
Published on:
11-Dec-2024
Deadline on:
31-Jan-2025 11:00 (GMT 0.00)
Description
This tender is for the supply of Containerised Solar Mini-Grids for UN Web Buy Plus for multiple destinations worldwide.
UNOPS wishes to establish non-exclusive Long Term Agreements (LTAs) with more than one vendor and to display the selected units in electronic catalogues on UN Web Buy Plus (http://www.unwebbuyplus.org) allowing UNOPS clients to order without further tendering.
Quantities are undefined. UNOPS will not be committed to purchase any minimum quantity, and purchases will be made only if and when there is an actual requirement.
IMPORTANT NOTE: Interested vendors must respond to this tender using the UNOPS eSourcing system, via the UNGM portal. In order to access the full UNOPS tender details, request clarifications on the tender, and submit a vendor response to a tender using the system, vendors need to be registered as a UNOPS vendor at the UNGM portal and be logged into UNGM. For guidance on how to register on UNGM and submit responses to UNOPS tenders in the UNOPS eSourcing system, please refer to the user guide and other resources available at: https://esourcing.unops.org/#/Help/Guides
Interested in improving your knowledge of what UNOPS procures, how we procure and how to become a vendor to supply to our organization? Learn more about our free online course on “Doing business with UNOPS” here
UNOPS wishes to establish non-exclusive Long Term Agreements (LTAs) with more than one vendor and to display the selected units in electronic catalogues on UN Web Buy Plus (http://www.unwebbuyplus.org) allowing UNOPS clients to order without further tendering.
Quantities are undefined. UNOPS will not be committed to purchase any minimum quantity, and purchases will be made only if and when there is an actual requirement.
IMPORTANT NOTE: Interested vendors must respond to this tender using the UNOPS eSourcing system, via the UNGM portal. In order to access the full UNOPS tender details, request clarifications on the tender, and submit a vendor response to a tender using the system, vendors need to be registered as a UNOPS vendor at the UNGM portal and be logged into UNGM. For guidance on how to register on UNGM and submit responses to UNOPS tenders in the UNOPS eSourcing system, please refer to the user guide and other resources available at: https://esourcing.unops.org/#/Help/Guides
Interested in improving your knowledge of what UNOPS procures, how we procure and how to become a vendor to supply to our organization? Learn more about our free online course on “Doing business with UNOPS” here
This tender has been posted through the UNOPS eSourcing system. / Cet avis a été publié au moyen du système eSourcing de l'UNOPS. / Esta licitación ha sido publicada usando el sistema eSourcing de UNOPS. Vendor Guide / Guide pour Fournisseurs / Guíra para Proveedores: https://esourcing.unops.org/#/Help/Guides
First name:
N/A
Surname:
N/A
This procurement opportunity integrates considerations for at least one sustainability indicator. However, it does not meet the requirements to be considered sustainable.
Gender issues
Social
The tender contains sustainability considerations addressing gender equality and women's empowerment.
Examples:
Gender mainstreaming, targeted employment of women, promotion of women-owned businesses.
Human rights and labour issues
Social
The tender contains sustainability considerations related to human rights, fundamental principles and rights at work, occupational health and safety, fairly traded goods, targeted employment of people with disabilities, etc.
| Link | Description | |
|---|---|---|
| https://esourcing.unops.org/#/Help/Guides | UNOPS eSourcing – Vendor guide and other system resources / Guide pour fournisseurs et autres ressources sur le système / Guía para proveedores y otros recursos sobre el sistema |
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Solar power plants
New clarification added: Question: Lots #6: 40 ft standard maritime shipping container, high cube size (approximately 12 m L x 2.5 m W x 3 m H, ISO 45G1 or equivalent, CSC certified and ISO 6346 compliant). Can High Cube Containers be used for other Lots if required. Lot #4: Specifies the use of a 20ft container. Lot 4 also includes a DG Set and 120kWh of BESS. May we use a 40Ft container for Lot #4.Answer: No. should supply as per the requested container sizes in the Annex - Technical specification Question: 2Lots #1- #6: (Installation). The system must be plug and play. Inverter, charge controller, battery package, battery charger must be pre-installed and wired inside the container in order to easily connect the PV array and the local installation. All cables for establishing the PV array must be readily available with pre-installed connections and clearly marked in a way that no mistakes can occur. It shall be designed to be reversible, to facilitate rapid disassembling and re-packaging without damaging the parts of the products itself. All tools/ equipment must be simple to use, of highest quality and meet international standards. Indian Authorities do not permit containerised shipment of Batteries (Including LiFePo4) along with other components. Is it acceptable to ship batteries separately and have batteries integrated into the plug and play container by the supplier or representative in the destination country.Answer : If such a regulation exists in the country, the bidder should make the necessary arrangements to collect all the items at the same time. The cargo will then be shipped in two separate shipments, ensuring compliance with the regulation.Question: Section II: Schedule of Requiremenrts, Para C states “Asia & Middle East Region - After sales service in minimum 6 countries.” .is the requirement a minimum of 6 countries in each region, or 6 countries spread across Asia and Middle East Region. Is the Asia Pacific region to be considered as “Asia” Answer: The requirement refers to a minimum of six countries spread across the Asia and Middle East Region. The Asia Pacific region is not considered part of "Asia" for this requirement.· ·
Edited on:
08-Jan-2025 06:57
Edited by:
webservice@unops.org
New clarification added: Question: How many microgrids are expected to be connected? May I ask whether the connection of several sets of micro grid is only the AC output terminal connected to the distribution cabinet at the same time? Or the inverters and batteries between the microgrids need to be connected？ Answer: The number of microgrids to be connected depends on the scope of the client's requirements, and no specific requirements are available. Kindly submit your offer based on the requested Technical Specifications and Compliance Sheet provided in Annex 1
Edited on:
08-Jan-2025 05:50
Edited by:
webservice@unops.org
New clarification added: Question: What are the minimum and maximum quantities you will be ordering and in what period ?Answer : Please refer to the price form and quote prices against each volume. UNOPS will sign the Long-Term Contract initially for three years, with a possible extension of a further two years (1 + 1)
Edited on:
08-Jan-2025 04:53
Edited by:
webservice@unops.org
New clarification added: Question: Are all companies from any country allowed to participate in this tender?Answer: Yes Question: Would it be same equal evaulation between local and external companies to win this tender?Answer: There is no differentiation during the evaluation of bids between local and external countries. The evaluation criteria are stipulated under the Criteria tab, and bids will be evaluated accordingly.Question: To which countries those systems will be delivered?Answer : Bidders must meet the after-sales requirements across a minimum number of countries in every region, as outlined in the Schedule of RequirementsQuestion : Is instalaltion and configuration required?Answer : Yes, please go through the technical specification sheet Question: What are the accepted delivery terms?Answer: Please provide your shortest delivey time Question Would you accept more than one offer for each item?Answer: Alternative offers are expected
Edited on:
07-Jan-2025 13:55
Edited by:
webservice@unops.org
New clarification added: Question: Considering that the place of delivery of the product impacts the price to be offered in the proposal.So, the Value in the Proposal will be: Product Value + Delivery logistics value.Therefore, we request the following clarifications, please: 1) Would you like to confirm that the delivery of the products will be in the supplier's country? 2) Can the value of the proposal be considered delivery to the supplier's country? 3) Can the value of the proposal be considered delivery to the supplier´s address? 4) Could give more details about the delivery site and the logistic cost of delivery in the proposal price?Answer: Bidders must meet the after-sales requirements across a minimum number of countries in every region, as outlined in the Schedule of Requirements. Also, bidder should quote the FCA price, and freight will be handled by UNOPS LTA freight forwarders
Edited on:
07-Jan-2025 13:30
Edited by:
webservice@unops.org
New clarification added: Question: As per controller requirement, Max open circurt voltage of the controller should be 230V, can this voltage be higher? For safty reason, higher voltage can lower current, suggest to have higher voltage.Answer: Yes, an open circuit DC voltage exceeding 230VDC is acceptable.Question: "Regarding the generators, when you refer to 'on-demand' start and automatic start in case of a power supply failure, could you please clarify what you mean by 'on-demand'? Does it imply a manual start?"Answer: When referring to 'on-demand' start, it does not imply a manual start. Instead, it means that the generator starts automatically based on predefined conditions, such as a low state of charge in the batteries or high system load beyond the capacity of the solar PV system. This ensures seamless operation without requiring manual intervention.Question: What do you mean by 'vibration preventing measures included'? Our generators are equipped with shock absorbers/anti-vibration pads between the frame and the engine, as well as the alternator. Additionally, we use a compensator between the engine and the silencer. Would this be sufficient?"Answer: Yes, this is acceptable. Alternative proposals will also be considered.Question: With the 'monitoring system,' we have the RS485 serial port as standard on the Comap IL4AMF25 controller. Is that sufficient?Answer: The inclusion of the RS485 serial port as standard on the ComAp IL4AMF25 controller is sufficient for basic monitoring and communication. However, please ensure that the monitoring system is compatible with other components in the hybrid system, such as the hybrid inverter and battery management system.Question: For the container, is a noise level of 70 dBA @ 7m and an IP23 rating acceptable?Answer: Yes, a noise level of 70 dBA at 7 meters is acceptable for the container, provided it complies with local environmental and noise regulations. A higher IP rating is recommemded since the site conditions may expose the system to extreme weather elements such as heavy rainfall or high humidity or very dusty conditions.Question: The container, which will house the equipment and the generator, requires a 'fire-rated wall' to separate it from the rest of the equipment. We propose using wall material with a Reaction to Fire class of A2, s1-d0. Is that acceptable?Answer: Yes, this is acceptable. Alternative proposals will also be considered.Question: In ITEM 5 (Compact minigrid 50k), it is specified that the package includes a CNT 40 ft standard maritime shipping container (ISO 20G1 or equivalent, CSC certified, and ISO 6346 compliant), which should be ventilated and have thermal insulation as needed per the operating temperature constraints outlined below. Additionally, the container should have mounting points on the roof for the PV panel structure and be ISO standardized to allow stacking up to at least six layers. However, the ISO 20G1 refers to a 20 ft container. Please clarify, including the approximate dimensions of the container.Answer: 40 ft standard maritime shipping container, high cube size (approximately 12 m L x 2.5 m W x 3 m H (40' x 9'6'' x 8') , ISO 45G1 or equivalent, CSC certified and ISO 6346 compliant).Question: "In ITEM 6, the container specifications are the same as those in ITEM 4 and ITEM 5 (ventilated and with thermal insulation as needed per the operating temperature constraints outlined below, with mounting points on the container roof for a fraction of the PV panel structure, and ISO standardized to allow stacking up to at least six layers). However, for the 40 ft standard maritime shipping container with high cube size, you mention ISO45G1, which differs from the 40 ft container in ITEM 5. Please clarify, including the approximate dimensions.Answer: 40 ft standard maritime shipping container, high cube size (approximately 12 m L x 2.5 m W x 3 m H (40' x 9'6'' x 8') , ISO 45G1 or equivalent, CSC certified and ISO 6346 compliant).Question: In ITEM 6, you request either a 100 kVA or 200 kVA generator, but the financial documents only mention a 200 kVA generator. Should we quote for the 100 kVA or the 200 kVA?Answer: The MANDATORY diesel generator set is specified to have a capacity of 200kVA. Prices for all ALTERNATIVE/SUGGESTED options should be provided in a separate form.In the Financial Bid Form for Lot 6: Extended Mini-Grid, the generator capacity under the suggested option should be read as 100kVA instead of 200kVA
Edited on:
07-Jan-2025 11:49
Edited by:
webservice@unops.org
New clarification added: Question: 5kw, 10kw, 15kw system for 20FT container takes very little space. Should we consider a small container if the space allow?Answer: The bidder should provide items that meet the requested minimum technical specificationsQuestion: On grid connection,is it in need to sell electricity? Since in the certification requirement, there are some certifications are related to selling electricity.Answer: No electricity will be sold to the grid; however, a feature to accommodate grid power is required for future integration or backup purposes.Question: Please confirm on grid connection input will be single phase or three phase?Answer: Please consider the recommended IEC standard limits for both 1-phase and 3-phase system sizes when providing your proposal.Question: Please confirm if there will be three phase applications? Is the output of the system should be single phase or three phase?Answer: Please consider the recommended IEC standard limits for both 1-phase and 3-phase system sizes when providing your proposal.Question: If the system design as 3 phase system, the grid must have 3 phase input, please confirm if all the possible location can have three phase grid.Answer: Please consider the recommended IEC standard limits for both 1-phase and 3-phase system sizes when providing your proposal.Question: If design as single system, the system will not be able to use when apply for three phase applications. Do we in need to use with three phase applications?Answer: Please consider the recommended IEC standard limits for both 1-phase and 3-phase system sizes when providing your proposal.Question: What will be the expectation on paralleling the container? Do we need the system to connect to become a 3 phase system, or just enlarge the power output and capacity? Should we provide different options of connection?Answer: This is a modular design aimed at increasing the system capacity. Based on your proposed system configuration, this can be achieved through either parallel or series connections, depending on the desired output and system requirements.Question In case if the system designed as a three phase system, when need to use with single phase applications, it is possible can use a breaker to transform to single phase output, but available power will reduce to 30% of orignal inverter power(For example, 10kw inverter can only allow 3kw). Please confirm if this is acceptable.Answer: It is recommend to consider the use of bus-bars as an alternative. Bus-bars provide a more efficient and stable means of distributing power across phases, reducing the potential for voltage drops or excessive wear on components. This can be easily achieved by using a 3-phase distribution board (DB). A 3-phase DB will allow for proper distribution of the electrical load, and it can be configured to accommodate single-phase applications while maintaining efficient power management.Question: Please indicate the inverter power required for each size.Answer: Consider the kWp of the system to be equivalent to the kWc (continuous output capacity) of the inverter.
Edited on:
07-Jan-2025 11:38
Edited by:
webservice@unops.org
New clarification added: Question:: Regarding user manuals, installation videos, and instruction manuals, kindly confirm the required language(s). Would Chinese or English be sufficient, or are additional languages required?Answer: It is mandatory to provide the user manuals, and instruction manuals in English/French and Spanish. installation videos should in English with French and Arabic subtitles Question: For a 100kWp Extended Mini-Grid, since we need to consider placing the 200KVA diesel generator and fuel tank in a container, do we consider placing the diesel generator separately in a 20-foot container, and placing the photovoltaic panels, inverters, batteries and other equipment in another 40-foot container?Answer: The shipment arrangement is up to the manufacturer. In UN Web Buy, when an end user will place a PO for a solar mini-grid, the shipment details entered by the supplier will be shared with our Freight Forwarders, who will calculate the freight rates depending on the specified number of containers.In the technical requirements, the system needs to fit in one container at destination. This can differ from the shipment arrangement.
Edited on:
07-Jan-2025 11:21
Edited by:
webservice@unops.org
New clarification added: Question: In the technical specifications document (Annex I) the maximum solar PV panel open circuit voltage is 230V for all Lots from 5kWp to 100kWp. Is itacceptable to consider higher voltages for inverters in the range of 10kW to 100kW?Answer: Yes, an open circuit DC voltage exceeding 230VDC is acceptable.Question: In the technical specifications document (Annex 1), concerning the battery package, the required operational voltage range per module is 25-55VDC(nominal customizable). Is it accepted to connect battery modules in series to achieve higher voltages usually needed by inverters over 10kVA?Answer: Based on your proposed system configuration, this can be achieved through either parallel or series connections, depending on the desired output and system requirements.Question: is it accepted to connect inverters in parallel in order to obtain the required output AC power?Answer : Based on your proposed system configuration, this can be achieved through either parallel or series connections, depending on the desired output and system requirements.Question: In the technical specifications document (Annex 1), the minimum inverter capacity (Amp) must be equivalent to maximum load. Could you please confirm what will be the maximum load for each system?Answer: Consider the kWp of the system to be equivalent to the kWc (continuous output capacity) of the inverter.
Edited on:
07-Jan-2025 10:56
Edited by:
webservice@unops.org
New clarification added: Question: Generator/ Technical Specification: Lot 6. Extended Mini-Grid 100kWp, Mandatory Options for Diesel generator set is 200KVA; Suggested Options for Diesel generator set is 100KVA; Please kindly confirm which capacity generator we should quote.Answer: The MANDATORY diesel generator set is specified to have a capacity of 200kVA. Prices for all ALTERNATIVE/SUGGESTED options should be provided in a separate form.In the Financial Bid Form for Lot 6: Extended Mini-Grid, the generator capacity under the suggested option should be read as 100kVA instead of 200kVAQuestion: Minimum distance between ground and lowest part of structure is 600mmAs per your last clarification for the clearance distance of MMS, 600mm is the distance for regular normal MMS. And for the Retractable accordian-style or equivalent industrial-class MMS, the clearance distance should be much lower, please confirm 200mm distance is acceptable or not.Answer: Yes, it is acceptable. Question: MMS / Please kindly clarify if the retractable accordian-style MMS is acceptable for system 30kWp to extended 100kWp?Answer: Yes, accordion-style solar panel systems are applicable for capacities of 30kWp, 50kWp, and 100kWp. However, proposals for other rapid solar panel deployment systems are also welcome and will be considered. Question: Protection / Generally, the earthing system ＜ 5 Ω requirement is for stationary fixed PV system, not for the mobile transportable PV system. Please kindly clarify if it is necessary requirement? Answer: All electrical systems must be properly earthed to ensure safety and compliance.
Edited on:
07-Jan-2025 10:45
Edited by:
webservice@unops.org
New clarification added: Question: Please provide the Single Diagram for 100KW Mini Grid Solar System. if it not available, Please provide detail of the Requirements to be able to Develop the Single Diagram.Answer: The information provided in Annex 1 - Technical specification sheet should serve as the basis for your system design and the development of the Single Line Diagram (SLD). You are required to propose a design based on the components you supply.Question: Project implementation requires the application for the Advance Payment. According to the relevant content of ‘35. PAYMENT TERMS’ in the ITB, we need the designated Forms by UNOPS. Please provide the relevant forms.Answer: Advance payment is not allowed, as specified under the Particulars tab of this tender.Question: For the usage of the Compact Mini-Grids and the Extended Mini-Grid, please reply whether the generator does not need to charge the battery when in use.Answer: The generator should charge the battery, with the timing and the percentage of charge determined by the settings configured on the hybrid inverter.Question: Currently, some excellent inverters support management and remote monitoring through mobile phone APPs without ‘Minimum Switches: LCD Configuration’. Is this acceptable?Answer: Yes, this is acceptable. Alternative proposals will also be considered.Question: In a 100kWp Extended Mini-Grid, is it acceptable to use a technical solution of paralleling two 50kW inverters? And should we gather all equipment in 2 containers?Answer: Based on your proposed system configuration, this can be achieved through either parallel or series connections, depending on the desired output and system requirements.Question: The production period of the product is estimated to be 60 days after Order and Advance Payment . However, the First Batch of Mini-Grids needs to undergo overall performance testing, and the estimated delivery period is about 45 days longer . Can we quote a delivery time of 60 days in the quotation sheet? Answer: Please provide your shortest delivery time while fully meeting the tender specifications.Question: Would you like to clarify the Order Schedule for the purchase, especially the estimated quantity for the First Batch of delivery?Answer: UNOPS will not be committed to purchasing any minimum quantity of the Goods and Related Services. Purchases will be made only if and when there is an actual requirement. Therefore, unable to provide such informationQuestion: Our inverters have integrated the PV Charger Controller’s functions. For example, the indicator "Maximum Solar PV panel open circuit voltage: 230 V" can be achieved at "1100V". Or to say, some indicators have significant differences, bAnswer: Yes, an open circuit DC voltage exceeding 230VDC is acceptable.
Edited on:
07-Jan-2025 08:11
Edited by:
webservice@unops.org
New clarification added: Question: . In TENDER PARTICULARS." Payment terms : Within 30 days after receipt of the goods/services and on submission of payment documentation." Please clarify the point-in-time of receipt of the goods/services. Due to FCA Incoterms, should it means submission of FCR ?Answer :Yes, the submission of the Forwarder's Cargo Receipt (FCR), invoice, packing list, and any other documents related to customs clearance at the destination is requiredQuestion : . In Annex 2_Form C-Financial Bid Form, "Additional PV panels array ”, are the additional PV panels just in package as spare part or need to be pre-assembled and installed in the rapid deployment system like the initial system's PV panels" ?Answer: These are a package of spares to be stored for future use in case of breakages.Question. In Annex I_ Technical Specifications and Compliance Sheet, COMPACT MINI-GRID of 30/50/100kWp requires "mounting points on top of the container to provide shade and space efficiency."Because the number of PV panels that can be installed on the top of the container is relatively small compared with the number of PV panels that need to be installed (only 5 can be installed on the top of a 20 foot container, and only 10 can be installed on the top of a 40 foot container), but it will increase a lot of installation workload on site and it is not conducive to rapid deployment. Can we ignore this request?Answer: The mounting or anchor points must be provided to facilitate the rapid installation of PV mounting structures on top of the containers. These points can be pre-welded off-site, allowing the mounting structures and panels to be assembled on-site efficiently.Question: In Annex 2_Form C-Financial Bid Form, please clarify the difference between "Commissioning development and report as per the mentioned commissioning program ( Per Unit)" and "Deploy of expert Mini Grid Operator (Per Unit) " .Answer: The differences in these requirements are clearly outlined in Annex 1: Technical Specifications and Compliance Sheet under the Mandatory Options. It is mandatory to quote prices for all the items listed in the price form under the mandatory options.
Edited on:
07-Jan-2025 07:52
Edited by:
webservice@unops.org
New clarification added: Question: Regarding of MMS (module mounting structure), please kindly clarify if the "Retractable accordion-style" MMS is utilized for 30kWp, 50kWp and 100kWp system.?Answer : Yes, accordion-style solar panel systems are applicable for capacities of 30kWp, 50kWp, and 100kWp. However, proposals for other rapid solar panel deployment systems are also welcome and will be considered.Question: Is the Predictive Maintenance for Extended Mini-Grid 100kWp system a one(1) year period or two(2) year period? There are discrepancies between Annex I_Technical Specification and Annex 2_Form C-Financial Bid Form, please kindly confirm;Answer: Annex 2 - Form C: Financial Bid Form (ITB-2024-54866) remains unchanged. However, Item No. 6 - Predictive Maintenance (prepaid package to buy with the equipment) should be read as one year in Annex I: Technical Specifications and Compliance Sheet (ITB-2024-54866).Question: Please kindly indicate the exact request for the "Work Shop Manual";Answer: The exact request for the "Workshop Manual" is to provide a comprehensive manual that includes detailed technical information, maintenance guidelines, troubleshooting procedures, and repair instructions specific to the equipment being suppliedQuestion: Please kindly clarify that proposal documents will be in English only during tender stage is acceptable;Answer: The official language of this bid and all related documents is English only.Question: In order to submit completed and competitive proposal, please kindly extend the deadline to another two weeks; Answer: The bid has already been extended to 2025-01-31 at 11:00 UTC. Please ensure all submissions are made before this deadline.
Edited on:
07-Jan-2025 07:46
Edited by:
webservice@unops.org
New clarification added: Question No 7: Can you extend the bid closing deadline another two weeksAnswer No 7 : The Bid closing deadline has been extended till 2025-01-31 at 11:00 UTC
Edited on:
27-Dec-2024 11:31
Edited by:
webservice@unops.org
New amendment added #1: Revision of the Deadline date and Clarifications. The relevant Contract provisions indicated below are amended to read as follows;Deadline under General2025-01-31 11:00 UTC Clarifications under General2025-01-06 11:00 UTC
Edited on:
27-Dec-2024 11:19
Edited by:
webservice@unops.org
New clarification added: Question No 6: Please mention the country's where to deliveryAnswer No 6: As per Section II, Schedule of Requirements, it is mandatory to ensure the ability to supply globally, with aftersales availability in countries within the Africa region, meeting the minimum requirement of 10 countries, as well as in 6 countries in the Asia region and 6 countries in the Middle East region.
Edited on:
18-Dec-2024 10:33
Edited by:
webservice@unops.org
New clarification added: Question No 1 1 Power conditioning unit1. 1.a. Please confirm that 3-phase inverters are acceptable for all lots/items.1.b. Please confirm that hybrid inverters that combine functionality of inverter and charge controller will be acceptable as a cost and space efficient solution. Please clarify if the technical requirements for a hybrid inverter will simply be a combination of inverter and charge controller, or any additional requirements need to be considered.Answer No 1 1.a. Yes, 3-phase inverters are acceptable for all LOTs. 1.b. A smart hybrid inverter with inbuilt charge controller and a minimum of 2 MPPT inputs will be acceptable. Question No 2 AC distribution box (ACDB): Please clarify the number of outgoing terminals to be considered in the ACDB for all the PV system sizes.Answer No 2 A minimum of 6-way AC-DB is considered for 3-phase and 12-way AC-DB for 1-phase.Question No 3 3. Module Mounting Structure (MMS)Please kindly clarify the following for the mounting structure required for all 6 system sizes:3.a. The maximum wind speed the mounting structure should be capable of withstanding3.b. Minimum distance between the ground and the lowest part of the mounting structure3.c. Expected snow load to be considered in the design (kg/sq.m)Answer No 3 3.a.36 m/s = 130 km/h (moderate wind zones). 67 m/s = 240 km/h (hurricane-prone or high-wind regions).3.b. minimum distance = 600mm 3.c. 2,400 Pa ≈ 2.4 kN/m² (light to moderate snow conditions).3.c. 400 Pa ≈ 5.4 kN/m² (heavy snow conditions)Question No 4Weather informationAnnex I mentions that ‘Providing live informatics on system health and performance with daily reporting and early warning notifications (remote monitoring of all equipment and local weather information).’ Please kindly clarify if a weather station is required to be integrated with the PV system for all the lots? Also, will irradiance, temperature and wind speed be considered adequate weather parameters to satisfy this requirementAnswer No 4 A weather station is not required for these system sizes; however, monitoring systems with real-time fault notifications typically include measurements for irradiance, temperature, and wind speed as standard features. Question No 5 Log of changes: Could you please share the list of changes, if any, in the technical and financial requirements of the bid submission, that has to be noted by bidders who participated in the original tender ITB/2023/50059?Answer No 5 The previous tender ITB/2023/50059 was canceled. Consequently, the technical and financial forms of the previous tender are not applicable to the this tender
Edited on:
18-Dec-2024 07:25
Edited by:
webservice@unops.org