Purchase and Installation of Photovoltaic System with a Power of 49.815 kWp.
Contract Value:
-
Notice Type:
Contract Notice
Published Date:
28 September 2026
Closing Date:
12 October 2026
Location(s):
PL71 Łódzkie (PL Poland/POLSKA)
Description:
The project involves the purchase and installation of a photovoltaic system with a capacity of 49.815 kWp on the roof of a building, including necessary components and integration with the existing installation, while ensuring compliance with technical specifications and warranty requirements.
Purchase and installation of a photovoltaic system with a capacity of 49.815 kWp. The scope of the contract includes: Purchase of a photovoltaic system with a total capacity not exceeding 50 kWp and its installation on the roof of the "Toolshop" building, shown in the photo attached as Annex 1 to this Inquiry, as well as its connection to the existing installation. The installed power of the new PV system should amount to 49.815 kWp.
The planned installation will be connected to the same power consumption point as the current installation. The existing system's power is 49.815 kWp. The inverters of the existing installation are SolarEdge - SE50K. The photovoltaic panels of the existing installation are: TW Solar 405W Full Black. The plant's connection power amounts to 2500 kW, the current ordered power is 1200 kW. The existing installation has been connected to the grid as a micro-installation under simplified (prosumer) grid connection conditions. Lamela Sp. z o.o. has a bidirectional meter. The indication of existing devices is for informational purposes and results from the necessity to ensure compatibility of the new installation with the existing installation of the Contracting Authority.
The planned installation should have the following technical parameters: The installation must meet all requirements resulting from the grid connection conditions and the NcRFG network code. Specifications of photovoltaic panels: - monocrystalline technology, half-cut, minimum efficiency 22% - temperature coefficient of Pmax power -0.30%/°C or better (range from 0 to -0.30) - compliance certificates 61215, 61730 - required optimization in a 1:2 configuration Inverter parameters: - inverters compatible with those installed at the contracting authority appropriate for the size of the PV system - European efficiency not less than 98.0% - AFCI function - degree of protection IP – 65 Mounting structure parameters on the roof: - photovoltaic modules mounted on the roof structure, - photovoltaic modules mounted on a mounting system dedicated for the respective roof covering, - photovoltaic modules to be installed as indicated on the map on the designated roof (Annex 1 to the Inquiry). The monitoring system should have the following features: - continuous monitoring of inverter operating parameters, - support for protocols responsible for sending notifications (email, SMS) of inverter malfunction, - error reporting in the installation and support for visual notifications of the operating staff about detected malfunctions, - data archiving capabilities and online access, - real-time display of instantaneous inverter power and status of monitored inverters and devices, - automatic analysis of the operation parameters of individual module strings for performance verification, - ability to integrate monitoring with the existing system on-site, - capability to integrate various devices with open communication protocols – e.g., transformer station control, electronic protection system, etc., - ability to visualize energy flow, view and analyze utility meter data, and visualize insolation at the photovoltaic farm. The offer should also cover the implementation of the following elements: - delivery and installation of inverters, - delivery and installation of the PV panel set, - delivery and installation of connectors, - delivery and installation of optimizers for PV panels, - obtaining grid connection conditions under the "zero export" variant, - preparation and submission of necessary documents to the power utility, - preparation of the photovoltaic installation project considering the connection with the existing 49.815 kWp photovoltaic system, - installation of the meter and device required by the Distribution System Operator (DSO), i.e., PGE Dystrybucja Łódź (the meter and device will be provided by the Contracting Authority), - delivery and installation of the lightning protection system, - delivery and installation of cabling (solar cable, grounding cable, connection cable), - delivery and installation of grounding, - delivery and installation of DC and AC protection, - delivery and installation of fire switch.
Furthermore, the contracting authority requires attaching to the offer: - an additional detailed specification of the proposed devices: photovoltaic panels, inverters, blocking device, roof mounting system, - planned installation work schedule considering the required completion time, - maps showing visualization of the entire system. The bidder should also consider the insurer’s requirements as specified in Annex 2 to the Inquiry "Contracting Authority’s Property Insurer Requirements". The supplier is obliged to attach a completed Annex 7 to the Inquiry "Contractor's declaration form concerning technical specification of the contract" to the offer. The contracting authority reserves the right to reject an offer if Annex 7 to the Inquiry "Contractor's declaration form concerning technical specification of the contract" contains even one negative answer "NO" or does not comply with the requirements related to individual parameters.
Green public procurement criteria: The contractor is obliged to declare an annual electricity production not less than 49.317 MWh/year.
Requirements Offered devices and components constituting the complete photovoltaic installation must be brand new. Moreover, the contractor is obliged, within the offered remuneration, to: a. deliver the subject of the contract to the Contracting Authority's seat at ul. Poznańska 4, 99-400 Łowicz, b. conduct a 2-day training for at least 4 employees of the Contracting Authority on operation of the installation, its devices, and software, c. provide technical and operational documentation (DTR), control software, and a declaration of conformity confirming CE safety class (all documents in Polish), d. prepare the photovoltaic installation project considering the connection with the existing 49.815 kWp photovoltaic system, e. consider insurer requirements as specified in Annex 2 to the Inquiry "Contracting Authority’s Property Insurer Requirements", f. obtain grid connection conditions for connection under the zero export variant, g. submit the project for approval with the DSO PGE Dystrybucja Łódź, h. develop the execution project and schedule, i. implement and integrate the new installation with the existing PV installation of 49.815 kWp, j. perform electrical measurements, k. test the commissioning of the installation, l. obtain a positive opinion from the State Fire Service, m. prepare and submit an application for occupancy permit, n. obtain the decision granting the occupancy permit, o. ensure technical acceptance by the DSO, p. provide as-built documentation and operating instructions, q. ensure at least one technical inspection within 1 year from the date of signing the final acceptance protocol, performed by the contractor’s service.
Warranty period The minimum warranty period required by the Contracting Authority is: - photovoltaic modules (min. 12 years) with guaranteed nominal efficiency during the first 10 calendar years (non-leap years) of not less than 90.7% and during 25 years not less than 80.2%, - supporting structure, including anti-corrosion protection if applicable (min. 10 years), - solar inverters (min. 10 years), - installation works (min. 5 years), - photovoltaic installation (min. 5 years), - assembly works (min. 5 years). Warranty periods for all the above elements start from the date of signing the final acceptance protocol of the installation. The Contracting Authority requires that within 5 years from the signing date of the final acceptance protocol, the contractor ensures warranty service for the entire contract with a response time of up to 48 hours. The response time is counted from the moment the failure is reported by the Contracting Authority to the diagnosis of the problem by the contractor and providing recommendations. The contractor’s warranty will cover: a) warranty for the purchased installation involving free repair or replacement of the installation or its parts in case of defect, malfunction, or damage, b) warranty for installation and assembly works, including proper fastening of the structure and roof sealing, c) damage to the roof caused during installation or due to faulty installation, d) free warranty inspections during the warranty period, e) defect or malfunction removal time not exceeding 20 working days.
How to prepare and submit bids The offer should be prepared on the offer form (Annex 3 to the Inquiry) and: a) contain data enabling identification and contact via email, b) be signed by the bidder, c) contain an offer validity period of not less than 60 days, d) include required attachments. Offers may be submitted in PLN or EUR, with the EUR amount converted to PLN at the average NBP exchange rate on the announcement publication date. The offer should be submitted in one of the following forms: a) scanned signed document, b) signed with a trusted profile, c) signed with a qualified electronic signature, d) signed with a personal signature (e-ID). Offers must be submitted via the Competitiveness Database available at https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl. Communication in the procurement procedure, including submission of offers, exchange of information between the Contracting Authority and the Contractor, and submission of documents and statements, is conducted in writing via the Competitiveness Database website: https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl. The email address is not for questions; questions must be submitted through the "Questions" section on the notice page in the Competitiveness Database. More details are in the attachment "Inquiry". Category: Delivery / Other deliveries CPV: 09331200-0 Photovoltaic solar modules, 09332000-5 Solar power plants, 31700000-3 Electronic, electromechanical and electrical engineering equipment, 45223100-7 Installation of metal structures, 45261215-4 Roof covering with solar panels, 45300000-0 Building installation work, 45310000-3 Electrical installation work, 45311000-0 Cabling and electrical installation work, 45311100-1 Electrical cabling work, 45315100-9 Electrotechnical installation work, 45315300-1 Electric power supply installations, 45315600-4 Low voltage installations, 45317300-5 Electrical distribution equipment, 51112000-0 Installation services for control and transmission equipment, 71314100-3 Electrical services Place of performance: Łowicz, Łowicz district, Łódź voivodeship Warranty period: Minimum warranty period varies depending on the element, as described in the subject of the contract description Offer evaluation criteria: - Price criterion will be evaluated according to the formula: Points = lowest net price among submitted offers / net price of evaluated offer * 100 points. Detailed description of the criterion is in the annex "Inquiry".
Participation conditions: - Additional participation conditions: No personal or capital ties with the Contracting Authority The Contracting Authority informs that a conflict of interest prohibition applies to this procurement procedure. A conflict of interest is any situation where persons involved in preparing or conducting the procedure, or able to influence its outcome, have a direct or indirect financial, economic or other personal interest that might threaten their impartiality and independence regarding the procedure. Therefore, and to ensure transparency and equal treatment of contractors, entities personally or capital-linked to the Contracting Authority are excluded from participating in the procedure. By capital and personal links, it is understood as mutual connections between the Contracting Authority or persons authorized to incur commitments on its behalf or persons performing activities related to preparation and conduct of the selection procedure, and the Contractor, especially: a) participation in a company as a partner of a civil or personal company, holding at least 10% shares or stock (unless a lower threshold is required by law), holding a position of supervisory or management board member, proxy, or attorney, b) being in a marital relation, direct kinship or affinity, secondary kinship or affinity up to the second degree, adoption, custody or guardianship relations, or living in a common household with the Contractor, its legal representative or members of the management or supervisory bodies of bidders, c) having such legal or factual relationship with the Contractor that raises justified doubts about impartiality or independence in the procurement procedure. The assessment of meeting the above participation conditions will be based on the submitted statement (Annex 4 to the Inquiry).
Exclusions Furthermore, the following bidders are excluded from participation: a) those listed in the registers specified in regulations 765/2006 and 269/2014 or entered on the list based on a decision regarding the application of measures mentioned in Art. 1 item 3 of the Act of 13 April 2022 on special solutions to counteract support of aggression against Ukraine and serve national security protection (consolidated text Journal of Laws 2025 item 514, as amended); b) whose ultimate beneficial owner within the meaning of the Act of 1 March 2018 ... on counteracting money laundering and financing of terrorism (Journal of Laws of 2023, item 1124 consolidated text with amendments) is a person listed in the registers specified in Regulation 765/2006 and Regulation 269/2014 or entered on the list or being such a beneficial owner from February 24, 2022, provided that they were entered on the list based on a decision regarding the entry on the list deciding on the application of the measure referred to in Art. 1 point 3 of the Act of April 13, 2022 on special solutions regarding counteracting the support of aggression against Ukraine and aimed at protecting national security (consolidated text Journal of Laws of 2025, item 514 with amendments); c) whose parent entity within the meaning of Art. 3 section 1 point 37 of the Accounting Act of September 29, 1994 (Journal of Laws of 2023, item 120 consolidated text with amendments) is an entity listed in the registers specified in Regulation 765/2006 and Regulation 269/2014 or entered on the list or being such a parent entity from February 24, 2022, provided that it was entered on the list based on a decision regarding the entry on the list deciding on the application of the measure referred to in Art. 1 point 3 of the Act of April 13, 2022 on special solutions regarding counteracting the support of aggression against Ukraine and aimed at protecting national security (consolidated text Journal of Laws of 2025, item 514 with amendments). Assessment of the lack of exclusion of the Contractor for the above reasons will be made based on a submitted statement (constituting Annex No. 8 to this request for proposal).
Other terms of the inquiry - Order completion time: no later than 11 months from the date of contract signing. Including: a. Time to obtain connection conditions – max. 8 months, b. Installation of the system along with acceptance and network connection – max. 3 months. - The contracting authority does not allow partial bids. - The contracting authority does not allow variant offers. - The bidder is obliged to sign the contract if his offer is selected as a result of the bid selection procedure. - Payment terms will be established at the stage of signing the contract with the selected bidder. - The contracting authority will sign the contract with the bidder who submitted the most advantageous offer (taking into account the Offer Selection Criteria). - The contracting authority reserves the right to cancel the procurement procedure at any stage until the contract for the execution of the order is signed. In the event of such circumstances, bidders shall have no claims against the contracting authority if it exercises any of the above rights. In this respect, bidders waive any possible claims. - Submission of an offer means that the bidder has understood and accepts the above conditions. - The contracting authority reserves the right not to select any offer. - Additional information can be obtained by sending a question via the "Questions" section in the Competitiveness Base. The contracting authority will answer questions asked no later than 3 days before the deadline for submission of offers. For questions asked later, answers will be provided as organizational possibilities allow, considering the relevance of the question. - The contracting authority reserves the right not to answer questions sent later than 3 days before the deadline for submitting offers. - Knowledge and experience: Participation in the procedure and award of the contract is open to bidders who in the last three years (or in the period of their business activity if shorter) meet cumulatively the following requirements: - Execution of at least three photovoltaic installations of at least 50 kWp each, confirmed by references or final acceptance protocols. The contractor is required to provide a List of completed orders corresponding to the subject of the contract, executed in the period of the last 3 years prior to the deadline for submission of offers (or in the course of business if the period is shorter), indicating their value, subject, dates of execution, and entities for which the orders were executed, and attach proof of proper execution (e.g. references or final acceptance protocols). All demonstrated orders must be duly executed and documented with acceptance protocols or equivalent documents confirming proper service execution. - Obtaining at least three connection conditions to the power grid for PV installations of at least 50 kWp each, confirmed by a statement. - Preparation of at least two electrical designs of photovoltaic installations with a capacity of at least 50 kWp, confirmed by a statement. Assessment of compliance with the above participation conditions will be based on the submitted statement (Annex No. 5 to the Request for Proposal) with the required attachments. - Persons capable of executing the contract: Participation in the procedure and contract award is open to bidders who have persons capable of performing this order. The contracting authority will consider the condition fulfilled if the contractor demonstrates that he has at least: 1. One person with SEP electrical qualifications over 1 kV, type D (supervision) and E (operation). 2. One electrical designer – having building licenses in the installation specialty in the field of electrical and power networks, installations, and devices, in accordance with applicable regulations (Building Law and executive acts). 3. One construction-installation work manager in the electrical industry holding the necessary qualifications to manage construction and installation works in the specialty of electrical and power installations without limitations. The bidder must demonstrate that the functions specified in points 2 and 3 are fulfilled by two separate persons. Compliance with the above condition must be demonstrated by a statement containing a list of required persons, including a description of their qualifications and education. Assessment of compliance with the above participation conditions will be based on the submitted statement (Annex No. 6 to the Request for Proposal). - List of required documents/statements: The offer should include: 1. Statement on lack of personal and capital connections (Annex No. 4 to the Request for Proposal). 2. Statement on experience (Annex No. 5 to the Request for Proposal). 3. Statement on available resources (Annex No. 6 to the Request for Proposal). 4. Contractor's declaration form regarding technical specification of the order (Annex No. 7 to the Request for Proposal). 5. Sanctions statement (Annex No. 8 to the Request for Proposal) 6. Additional detailed specification of proposed devices: photovoltaic panels, inverters, blocking device, roof mounting system. 7. Planned installation work schedule including the required delivery time. 8. Maps presenting visualization of the entire system.