Supply and installation of a photovoltaic micro-installation below 40kW with energy storage and management system

The subject of the inquiry is the supply and installation of a photovoltaic micro-installation below 40kW with an energy storage and management system. The installation should consist of bifacial panels and have a minimum power of 39.44 kWp. The installation is to be equipped with an electrical energy storage system with a capacity of 40.96 kWh and an energy management system. Minimum technical parameters of the photovoltaic micro-installation below 40kW I. Bifacial photovoltaic panels: 1) Electrical data a) Cell type: Monocrystalline N-type b) Number of cells: 144 (72x2) c) SMBB technology 2) Mechanical data a) Width: 1134 mm b) Height: 2278 mm c) Depth: 30 mm d) Frame width: 30 mm e) Weight: not more than 32 kg 3) U/I parameters at STC a) Power at MPP: 44.15 V b) Current at MPP: 13.35 A c) Short-circuit current: not more than 14.10 A d) Open-circuit voltage: 52.90 V e) Nominal power: 580 W f) Efficiency: 22.46% 4) Other a) Power temperature coefficient: not more than -0.3%/°C b) Bifaciality factor: 80% c) Maximum system voltage: 1500 V II. Hybrid inverter – 1 pc. 1) Electrical data: a) Nominal DC power: 40 kW b) Nominal AC power: 40 kW c) Max. DC power: 52 kW d) Max. AC power: 44 kVA e) Standby power consumption: 5 W f) Night consumption: 5 W g) Min. power fed to the grid: 30 W h) Max. input current: 144 A i) Max. input voltage: 1000 V j) Nominal DC voltage: 600 V k) Number of phases: 3 l) Number of inputs: DC 8 m) Efficiency change in case of input voltage deviation from nominal voltage: 1%/100V 2) MPP Tracker a) Power range 20% of nominal power: 96% c) Number of MPP trackers: 4 d) Max. input current: 36 A e) Max. input power: 13 kW f) Min. MPP voltage: 150 V g) Max. MPP voltage: 850 V III. Overload, surge protection on AC and DC sides, overcurrent, residual current protection – 1 set 1) AC GRID a) Number of phases: 3 b) Grid voltage (single-phase): 230 V c) Power factor (cos phi): +/- 1 2) Protection compliant with standard PN-HD 60364-7-712 IV. Fire protection 1) Number of strings: 4 2) Number of poles: 8 3) Maximum voltage per string (Vdc): 1500 4) Maximum current per string (A): 25/25 5) Operating voltage: 100Vac~270Vac 6) Nominal voltage: 230Vac 7) Nominal current: 30mA 8) Starting current (charging) average: 100mA 9) Trip current max: 300mA 10) Auxiliary contact: 24Vdc - 300mA max 11) Operating temperature range: -20°C to +50°C 12) Maximum operating temperature before automatic shutdown: +70°C 13) Storage temperature: -40°C to +85°C 14) IP rating: IP66 15) Protection class: Class II 16) CE certification 17) Switch operation compliant with EN 60947-1&3 18) Number of operations: 10000 V. Solar cables, grounding cable, power cable 1) Solar cable a) Flexible single-core conductor intended for photovoltaic installations, with tinned copper core, in halogen-free cross-linked polymer insulation and sheath b) Quantity ensuring proper functioning of the photovoltaic installation 2) Grounding cable according to PN EN 62305 3) Power cable according to PN-EN 50618:2015-03 VI. Certified mounting structure for flat roof with light-reflecting foil under the panels 1) Allows mounting of bifacial panels on the roof facing southwest, orientation 151 degrees, tilt 15 degrees Minimum technical parameters of the management system – 1 set 1) Two-way communication capability with photovoltaic installation inverters and direct data reading from the distribution system operator's Remote Meter Reading (LZO) devices via an integrated wireless interface in the 868 MHz technological standard (compliant with the Wireless M-Bus OMS protocol) 2) Galvanically isolated RS485 serial port 3) Device power supply voltage: 12V DC 4) Built-in wireless communication module in LTE cellular standard, minimum Cat 1, equipped with an integrated chip SIM card (MFF2 / eSIM) 5) Support for MQTT and TLS 1.2 network communication protocols 6) Communication with the EMS system in the AWS IoT CORE standard 7) Operating temperature: -20 to +55°C 8) Built-in Wireless M-Bus 868 MHz HAN wireless communication interface in T1/C1 mode compliant with OMS standard, equipped with SMB antenna connector 9) Support for SunSpec communication protocol 10) Energy management function based on market prices and customer consumption profile 11) Compliance with European cybersecurity regulations, including CRA and RED DA requirements Minimum technical parameters of the energy storage system – 1 set 1) Storage power: 40.8 kW 2) Storage capacity: 40.96 kWh 3) Battery management system 4) Enclosure with IP55 protection rating 5) Operating temperature range: -20 to 55°C 6) Modular design 7) Automatic battery module connection function 8) Automatic IP addressing function 9) Remote firmware update capability 10) Battery chemistry: Lithium Iron Phosphate (LFP) 11) Battery module energy: 5.1 kWh 12) Battery module voltage: 51.2 V 13) Battery module capacity: 100 Ah 14) Operating voltage: 43.2 V ~ 57.6 V 15) Cycle life: ≥6000 (25°C ± 2°C, 0.5C/0.5C, 70% EOL) 16) Energy throughput: 16 MWh (battery module @70%EOL) Additional services: a) Dismantling of the existing photovoltaic installation with a power of approximately 40kW along with two existing inverters b) Installation of the photovoltaic system, commissioning, and training on its operation c) Performing necessary measurements for the correct functioning of the installation d) 24-hour remote monitoring e) Formalities related to reporting to PGE f) Annual inspections of the photovoltaic installation along with electrical measurements for the entire warranty period. Start-up – The Contractor shall, at their own expense, commission the photovoltaic installation. a) The Contractor shall commission the installation within the deadline...