What Technical Specifications to Include in a Bulk Solar Equipment Quote Request

Preparing a Comprehensive Wholesale Solar Equipment Request

When requesting bulk equipment quotations for EPC projects, commercial factory rooftops, or wholesale distribution, providing detailed engineering specifications eliminates delays and ensures accurate delivery lead times.

Key Equipment Information to Specify

1. Solar Photovoltaic Modules

• Cell Technology: N-Type TOPCon, Heterojunction (HJT), or Mono PERC.
• Form Factor & Wattage: e.g., 585W – 620W high-efficiency bifacial modules.
• Glass Configuration: Dual-glass bifacial vs. transparent backsheet.
• Quantity or Target DC Capacity: Total module units or MWp capacity required.

2. Grid-Tie or Hybrid Inverters

• AC Output Voltage: 400V 3-phase, 230V single-phase, or medium-voltage skid.
• Total Inverter Sizing: Specific unit ratings (e.g. 5x 100kW string inverters).
• Communication Protocols: RS485, Modbus TCP, 4G / Wi-Fi telemetry dongles.

3. Battery Storage (BESS)

• DC Bus Voltage: Low-voltage (48V / 51.2V) or High-voltage series strings.
• Usable Energy: Total kWh storage capacity needed and maximum discharge C-rate.
• Form Factor: Wall-mount, server rack enclosure, or outdoor containerized skid.

Logistics & Documentation Requirements

State any required testing certifications upfront:

• Flash test reports, EL (Electroluminescence) inspection images, and factory calibration certificates.
• Delivery location (Chittagong port delivery, central warehouse, or direct site logistics).