Buyer is interested to receive quotations for the following RFQ -
Product Name: Watches
Specifications:
Type : Smart Watch, Clock Watch,and Digital Watch
Quantity Required : MOQ
Shipping Terms : CIF
Destination Port : Kenya
Payment Terms : Bank Transfer
Looking for suppliers from : Worldwide
Contact : Joel
The buyer would like to receive quotations for -
Product Name: OFF Grid Solar Energy System
Specifications:
Battery Capacity: 12.8V/6Ah/9Ah/12Ah/18Ah
Solar panel: 18V/30W/40W/50W
Grid Type: Off-Grid Solar Home System
Solar Panel Type: Grade A Polycrystalline
Quantity Required : 5 Set/Sets
Shipping Terms : CIF
Destination Port : Kenya
Payment Terms : LC
Looking for suppliers from : Worldwide
Contact : Festus Agisu
Buyer is interested to receive quotations for the following RFQ -
Name: Complete Solar system Product
Specifications:
Type
Batteries , Inverters
80 MEGA WATT
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.
Quantity : 250,000 to 300,000 solar panels,
Qua
Fresh fruit like apple and vegetables like potato, tamarind and seeds, shoes, watch , solar phones
Watches
Watch
Watches
Watch
Watches
Wrist watch
wrist watches
Solar water heater, solar panel
Watches like smart watch, clock watch,and digital watch
Round wall clock, seiko, swatch, timex, wall clock
Shoes & watches
