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.
Buyer is interested to receive quotations for the following RFQ -
Product Name: Solar Panel
Specifications :
580 Watts
Quantity Required : 10 Twenty-Foot Container
Shipping Terms : CIF
Destination Port : United Arab Emirates
Payment Terms : To be discussed with sellers
Looking for suppliers from : Worldwide
Contact : Berry
Please quote for the following wholesale product requirement -
Product Name: Solar Panel Module
Specifications :
Solar Panel 8640 Modules
Quantity Required : 12 Twenty-Foot Container
Shipping Terms : CIF
Destination Port : United Arab Emirates
Payment Terms : Telegraphic Transfer
Looking for suppliers from : Worldwide
Contact : Angela D. Santos
Machinery for shedding or chipping horti waste, machinery for compost blending, machinery for landscaping and machinery for biochar production
Coconut charcoal Briquette
Wood charcoal briquettes
Indonesian coal
Solar panels, batteries, inverters, controllers
Solar panels
Renewable energy, medical equipment, copper scrap, sesame seeds, coffee beans, cashew nuts, fertilizer, charcoal, nuts, grains, spices, cosmetics, hair extension and wigs, beauty products.
The buyer would like to receive quotations for -
Product Name: Coal
Specifications :
Type: Indian Steam Coal, Indonesian Steam Coal
Quantity Required : 4500 - 5000 Ton/Tons
Shipping Terms : CIF
Destination Port : Nepal
Payment Terms : L/C
Looking for suppliers from : Worldwide
Contact : Anil
Please provide a quotation to the following requirement from importer -
Product Name: Coal
Specifications :
Type: Coking Coal
Export Activities In Tz Or Africa
Low Sulfur Cooking Coal:
Ad=10.50%,
St,d=0.80%,
20.00%=vdaf=26.00%,g=80,y=15.0mm
Standard Deviation=0.150,
Average Maximum Reflectivity Of Vitrinite Group
1.15%=rmax=1.65%, Mt=8.00%, Csr=67.0%
Medium Sulfur Coking Coal:
Ad=10.50%,
St,d=1.30%,
Vdaf:19.00-25.00%
G=80,y=15.0mm,mt=8.00%,
Standard Deviation=0.150,
Average Maximum Reflectivity Of Vitrinite Group
1.15%=rmax=1.70%; Csr=67.0%
High Sulfur Cooking Coal:
Ad=10.50%,
St,d=2.50%,
Vdaf:19.00%-25.00%,
G=80,y=15.0mm,
Standard Deviation=0.150,
Average Maximum Reflectivity Of Vitrinite Group
1.2=rmax=1.7, Mt=8.00%, Csr=67.0%
Qty: 50,000mt As Trial And Increase × 12 Months
Quantity Required : 50000 Metric Ton/Metric Tons
Shipping Terms : CIF
Destination Port : China, India, South Korea,
Payment Terms : L/C
Looking for suppliers from : Worldwide
Contact : Maria
The buyer would like to receive quotations for -
Product Name: Coal
Specifications :
Type: Anthracite Coal
Calorific Value: 4800- 5300 Kcal/kg
F.C : 75- 80%
H2O : 7-8%
Ash :
Quantity: 500 Mt/month Reguar.( 25 X 20ft Containers, 1 Ton / Bag )
We Need A Sample ( 5 Kgs ) For Test Purpose And A Analysis Report
Packaging Terms : In 20'ft Containers (1 Ton/ Bag)
Quantity Required : 5 Kilogram/Kilograms(sample)
Shipping Terms : FOB Or CIF
Destination Port : Fob Vietnam Or Phlipine Port Or Cif Gwangyang Port, Korea,
Payment Terms : By T/T (after presentation of shipping documents)
Looking for suppliers from : China, Philippines, Viet Nam
Contact : Danny Kim
The buyer would like to receive quotations for -
Product Name: Coal
Specifications :
Type: Steam Coal
Qty: Trial Shipment 20K MT Contract 1.2 Million MT Per Year Very Legitimate Business
Quantity Required : 20000 Metric Ton/Metric Tons
Shipping Terms : CIF
Destination Port : China
Payment Terms : DLC
Looking for suppliers from : Worldwide
Contact : Anbo Xiang
Please quote for the following wholesale product requirement -
Product Name: Coal
Specifications :
Type: Anthracite Coal
Total Moisture Max 12%
Volatile Matter Max 13.99%
Ash 19% - 25%
Total Sulphur Max 0.6
Net Calo 4170 - 6500kcal
Size Under 50mm
Nitrogen Max 2% Na2O Max 2% 7
Quantity Required : 30000 - 50000 Metric Ton/Metric Tons Monthly
Shipping Terms : CIF
Destination Port : Donghae Port, South Korea (Republic Of Korea)
Payment Terms : 100% L/C (MT700)
Looking for suppliers from : Worldwide
Contact : Kim Seon Seob
Please provide a quotation to the following requirement from importer -
Product Name: Coal
Specifications :
Type: Steam Coal
Steam Coal - Low Sulfur - Low Ash - With Kcal In The 6,500 Range
Please Provide The Following :
1) Profile Of Your Company Or Related Web Site
2) Full Contact Information
3) Qualified Specification Of Your Coal Quality - SGS Or Other Similar Independent Analysis
Packaging Terms : Customized
Quantity Required : 75000 Metric Ton/Metric Tons
Shipping Terms : FOB
Destination Port : United States
Payment Terms : L/C Or T/T
Looking for suppliers from : Worldwide
Contact : Randy. Reynolds
Solar panel, bottle plastic vending machine
Solar lighting tower
Flexible Solar Panels.
Used or surplus solar panel
