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.
Supplier: Sugar icumsa 45, sunflower oil, peanut oil, palm oil, organic cashew nuts, cocoa and madagascar vanilla, jet a1 and diesel en 590 10 ppm
Buyer: Sunflower oil, peanut oil, palm oil, organic, cocoa and jet a1 and diesel 590 10 ppm
The buyer would like to receive quotations for -
Product : Optimizers
Specifications:
Solar Edge Power Optimizer
Quantity Required : MOQ
Quantity Required : MOQ
Shipping Terms : CIF
Destination Port : Netherlands
Payment Terms : Bank transfer
Looking for suppliers from : Worldwide
Contact : Leen Van Bellen
Please quote for the following wholesale product requirement -
Product Name: Split Air Conditioners
Specifications:
Split Air Conditioners
Need O General Made In Thailand
Different Capacities
Quantity Required : 30 - 50 Unit/Units
Shipping Terms : CIF
Destination Port : United Arab Emirates
Payment Terms : Bank Transfer
Looking for suppliers from : Worldwide
Contact : Ali Hussain
Please provide a quotation to the following requirement from importer -
Product Name: Air Conditioners
Specification :-
Capacity :- Different Capacity
Condition :- New
Quantity Required : 1 Twenty-Foot Container
Shipping Terms : FOB
Destination Port : Sri Lanka
Payment Terms : LC at Sight
Looking for suppliers from : Worldwide
Contact : Mr. Erag
Supplier: All Natural Stons Like Chromite , Copper, Salt , Textile Products And Sports Products, Leather Belts, Leather Bags, Leather Jackets
Buyer: Cooking oil , olive oil , sugar , tea leaves, madison, solar
Supplier: Aluminum and copper lugs
frozen pork meat, frozen fish, wood pellets, wood shavings, epal pallets, european wooden pallets, hard wood charcoal, firewood, skipjack tuna fish, toilet tissue, milka chocolate biscuit, copper scrap, hms scrap, nutella chocolate, pork feet, urea fertilizer, icumsa 45 sugar, nido milk powder, full cream milk powder, skimmed milk powder, wheat flour, refined sunflower oil, palm oil cp8, toasted sesame oil, refined sesame oil, 1121 basmati rice, almond nuts, aptamil baby milk, bananas, bebelac infant milk, redbull energy drinks, xl energy drinks, coca cola, fanta, pepsi, sprite, colgate toothpaste, pampers diapers, dove bar soap, dove spray, ferrero chocolate, fresh eggs, kinder joy, pistachio nuts, walnuts, mozzarella cheese, toblerone, nutrilon milk, pig premix, ldpe scrap, hdpe scrap, paraffin wax
Buyer: Aluminium scrap
Supplier: Caustic soda, citric acids , soda ash, chemicals
Services: Transportation and shipping
Buyer: Chemicals
Supplier: Marble, granite, stones, slates, tiles, power cord, wires, cables , cable assemblies, tyre scrap, used tyres, steel tire wire scrap, firewoods, pistachios, hazelnuts, textiles
Buyer: Pellets, briquettes, firewood, textiles
Supplier: 1. zobo leaves
2. soybeans
3. cocoa beans
4. palm oil
5. ginger
6. turmeric
7. sesame seeds
8. moringa seeds
9. charcoal
10. malt
11. spices
12. crayfish
13. bitter leaves
14. groundnuts
15. cashew nuts
16. barbara nuts
17. kennel shell
18. cashew seeds
19. ogbono
20. egusi
21. okra
22. wheat
23. copper cathode
24. walnut
25. cow skin ( kpomo)
26. of rice
27. maize
28. beans
29. shea butter
30. maggi star & knor
31. starch
32. garri
33. yam
34. yam powder
35. ginger powder
37. salmond seeds
38. dates
Services: Logistics, port to port
Buyer: Computer accessories, car parts, kitchen wares, clothing materials
