Supplier: En590 diesel 10ppm, jet fuel a1, icumsa 45 sugar spot & contract
Buyer: Sugar, metals, oil and gas, plastic
Supplier: Fruits and vegetables, mdf boards, laminated sheets, plywood, shuttering plywood, gypsum boards, ceramics tiles, aluminum scrap and hms scrap, old corrugated cartons (occ), coal, green coffee beans
Buyer: Aluminum scrap, coal, occ, mdf hdhmr, gypsum board, plywood, spices, sunflower oil, palm oil, soybean oil
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.
The buyer would like to receive quotations for -
Product Name: Solar Energy System
Specifications:
Complete Kit 10KW Solar System Price 10kw Hybrid PV Power System 10000W System for Home
Inverter: Pure Sine Wave Inverter
Solar panel: Mono / Poly Silicon
Junction Box: IP67
Quantity Required : 2 Set/Sets
Shipping Terms : CIF
Destination Port : Australia
Payment Terms : Bank Transfer
Looking for suppliers from : Worldwide
Contact : Poasa Baleikaba
Please provide a quotation to the following requirement from importer -
Product Name: Solar Powered Torch
Specifications :
Type: Solar Powered
Quantity Required : 1 Twenty-Foot Container
Shipping Terms : CIF Or FOB
Destination Port : United States
Payment Terms : L/C Or T/T
Looking for suppliers from : Worldwide
Contact : Mohammed Saleh Alqahtani
Supplier: Sandstones & sands, zircon ore, zircon gemstones, diesel, aviation supplies, semi-precious stones, other ores & minerals, abrasives
Buyer: Silica sand, sandstones & sands, other ores & minerals
Supplier: Handicrafts, garments, packed nuts, imitation jewellery, towels, bed sheets, onion, potato, tomato, okra, drumsticks, green chilli, red chilli, cumin, ajwain, mustard, fennel, black pepper, mangosteen, dragon fruit, cashew, fox nuts, t shirts, jeans, bath towels
Services: Sourcing agent, commission agent
Buyer: Dry fruits, fashion jewellery, fruits, cosmetic raw materials
Supplier: High quality wood chip and bamboo chips from singapore and the region, free from other impurities
Services:
Buyer: Machinery for shedding or chipping horti waste, machinery for compost blending, machinery for landscaping and machinery for biochar production
Supplier: Packaging materials like corrugated cardboard boxes, paper bags, corrugated cardboard sheets, kraft paper rolls, paper boards, pizza boxes, biodegradable & compostable bags, jute bags, cloth bags, non woven tote bags and strech foils etc.
Services: Product sourcing & procurement, global distribution, custom packaging solution, quality control, supply chain management, export documentation & compliance, after sales support
Buyer: In addition to our main packaging business, we specialize in importing high quality metal scrap from around the world. we import both alloyed and unalloyed scrap from the metal processing industry and supply raw materials to the local investment casting, foundry, and steelworks sectors in india.
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
