Buyer is interested to receive quotations for the following RFQ -
Product Name: Biometric Gsm Network Time Attendance Machine
Specifications:
Resolution:1280 X 720
Quantity: 1 Unit/Units
Quantity Required : 1 Unit/Units
Shipping Terms : FOB/CIF
Destination Port : Kenya
Payment Terms : LC
Looking for suppliers from : China
Contact : Michael Karanja
Buyer is interested to receive quotations for the following RFQ -
Product Name: Solar Panels
Specifications:
Type :
Batteries , Inverters
80 MEGA WATT
Quantity :2,000 to 3,000 solar panels,
Setting up a 80 MW (megawatt) off-grid solar system in UNHCR camps in East Africa.Below is a breakdown of the key components needed to design and implement an 80MW off-grid solar power system Using an example of 1Mw. You are free to add or adjust.
1. Solar Panels (Photovoltaic Modules)
• Capacity: To generate 1 MW, you would typically need around 2,000 to 3,000 solar panels, depending on the wattage of each panel.
o For example, if each panel has a capacity of 300 watts, you will need approximately 3,334 panels (1,000,000 watts / 300 watts per panel).
• Panel Type: The most common types are monocrystalline and polycrystalline, with monocrystalline being more efficient and often used in large-scale projects.
• Total Capacity: Panels must provide enough energy to meet the daily needs of the system, considering off-grid operation without relying on the grid.
2. Inverters
• DC to AC Inverters: These convert the DC power generated by the solar panels into AC power, which is what most appliances use.
• Inverter Size: For a 1 MW solar system, you will need inverters that can handle 1 MW of power. Typically, this means installing inverters that are slightly larger than the system’s nominal output capacity to handle peak loads.
• Number of Inverters: A 1 MW solar system may require multiple inverters (e.g., 2 x 500 kW or 4 x 250 kW inverters), depending on the configuration.
3. Battery Storage (Energy Storage System)
• Battery Type: Lithium-ion, lead-acid, or other advanced battery technologies can be used. Lithium-ion batteries are commonly used for large-scale solar off-grid systems due to their higher energy density and efficiency.
• Battery Size: To store the energy generated by the solar panels for use during night-time or cloudy days, a large battery bank is needed.
o For example, if the system needs to run 24/7 with a 5-hour backup requirement, you'd calculate the battery bank size based on your daily energy consumption.
o Example: For a 1 MW system that operates 24 hours a day, it would need to generate around 24 MWh daily. Depending on your backup requirements, this could mean needing a battery bank that stores anywhere from 5-10 MWh or more.
4. Charge Controllers
• Function: Charge controllers regulate the charging of batteries to ensure they don’t overcharge or undercharge, prolonging battery life.
• Type: MPPT (Maximum Power Point Tracking) charge controllers are typically used in large solar systems to optimize the energy harvest from the solar panels.
• Sizing: The charge controller should match the system's capacity. For 1 MW systems, you will need a high-power charge controller, and multiple controllers may be necessary depending on the number of panels and battery bank configuration.
5. Mounting Structures
• Function: These are the physical structures that support the solar panels, ensuring they are securely mounted.
• Types: Fixed tilt or tracking mounts.
o Fixed Tilt: More common in regions with consistent sunlight.
o Tracking Mounts: Move the panels to follow the sun, increasing efficiency, but at a higher initial cost.
6. Cabling and Wiring
• DC Cabling: Connects the solar panels to the inverters and charge controllers.
• AC Cabling: Connects the inverters to the battery bank and loads.
• Sizing: Wiring should be appropriately sized to handle the current and minimize energy loss. In high-power systems, large cables and low-resistance wiring are important.
7. Disconnects and Protection Devices
• DC Disconnects: To safely disconnect the solar panels from the system during maintenance or emergencies.
• AC Disconnects: Disconnects the inverter and other AC components from the electrical load or grid.
• Fuses and Circuit Breakers: Protect the system from electrical faults and overloads.
Please quote for the following wholesale product requirement -
Product Name: Home Energy Storage
Specifications:
Solar Energy Storage
Capacity: 300Ah
Cycle life: 6000 Times
Voltage: 48V 51.2V
Type: LiFePO4
Battery cell: CATL
Protection: Short Circuit Protection
Features: Battery Management System Internally
Quantity Required : MOQ
Shipping Terms : FOB
Destination Port : Ireland
Payment Terms : Bank Transfer
Looking for suppliers from : Worldwide
Contact : Rolandas Medeksa
The buyer would like to receive quotations for -
Product Name: Solar Tracker
Specifications:
Type : dual axis solar tracking controller solar tracking system
Quantity : Need 2 solar tracker Kit 2 axis solar panels 2 times 5 kW self consumption-storage lithium battery 15 kWh ground mounting Tracker GPS price TTC transport and customs tax including
Quantity Required : 4 Piece/Pieces
Shipping Terms : DDP
Destination Port : France
Payment Terms : LC
Looking for suppliers from : Worldwide
Contact : Boghossian Adrien
CCTV, DVR, night vision camera, home security, attendance system, GPS system
Cctv, pabx & intercom, time attendance, access control, fire alarm, gsm alarm, fire fighting equipment, metal detector, fax machine, p.a. sound system
Time attendance system
Time Attendance And Access Control System
Devices like infrared thermometer, attendance device for face and finger, access control system, gym, school and parking management
Biometric time & attendance system, access control system
CCTV, access control system fire alarm system and time and attendance machines
Time & attendance
Time Attendance, Time Clock
Cctv, fire alarm system, access control system, biometrics, attendance system, ip cameras, video door phones, public addressable system, intrusion alarm system, burglar alarms, water leakage system, vesda, rodent alarm & all electronics security systems
Access control, time attendance, video surveillance, multi room sound system
The buyer would like to receive quotations for -
Product Name: Industrial Foundry Induction Smelting Furnace For Melting Gold
Specifications:
Furnace Capacity: 50kg-10ton
Function: Real-time Detection,leaking Alarm Device, Smelting Management System
Quantity Required : 1 Set/Sets
Shipping Terms : CIF
Destination Port : Israel
Payment Terms : LC
Looking for suppliers from : Worldwide
Contact : Naeem Natsheh
CCTV systems, finger print, door access control systems, lcd monitor, hidden camera, time attendance systems
Attendance system
CCTV camera, fire alarm, access control system, time attendance system, door phone
Attendance system, access control system, biometrics, attendance machine, fingerprint attendance, biometric attendance system, biometric access control, canteen management system, canteen management software, time office software, visitor management system, payroll software
