1.5MW Factory Rooftop PV Project Ningbo
1.5MW Factory Rooftop PV Project Case, Ningbo, China
1. Project Overview
Location: Distributed solar power station on multi-story industrial factory rooftops, Ningbo, China
Key Parameters:
•Installed Capacity: 1.5MW
•Total Power Generation in 25 Years: 39.4GWh
•Standard Coal Saved Over Full Lifecycle: 480 tons
•Total CO₂ Emission Reduction: 1,300 tons
This commercial & industrial solar system covers large factory rooftops with self-consumption plus surplus power grid feed-in mode. It greatly cuts heavy industrial electricity expenses and supports enterprises to achieve green factory certification and carbon neutrality transformation.
2. Standard 7-Step Service Process
1. Demand Survey
Comprehensive on-site inspection of roof load, shading and available installation area for all factory buildings. Analyze annual industrial power loads and local grid policies to confirm the 1.5MW large-scale capacity plan.
2. Custom Solution Design
Zoned layout design for PV arrays, matched with high-power string inverters and heavy-duty anti-corrosion roof brackets. Calculate 25-year power revenue, coal savings and carbon reduction data, deliver complete construction drawings & benefit reports.
3. Custom Equipment Supply
Mass customized high-power PV modules, industrial inverters and non-damaging roof clamps. All auxiliary electrical materials meet national standards with full factory insulation & voltage resistance testing before delivery.
4. On-site Construction
Roof waterproof reinforcement, mass bracket installation by zones, AC/DC cable tray routing and full-site lightning protection setup, fully compliant with industrial high-altitude safety codes.
5. System Commissioning
Zonal group-by-group power testing, unified cloud intelligent monitoring platform deployment, full pre-grid self-inspection and coordination with local power bureau for acceptance.
6. Project Handover
Assist with grid connection filing, hand over complete as-built drawings, equipment certificates and O&M manuals. Provide professional operation training for factory electricians and sign completion confirmation.
7. Long-term O&M Support
Monthly full-site inspection, 24/7 cloud remote fault alarm, original manufacturer warranty repair for core equipment, and annual comprehensive report covering power output, cost savings & carbon reduction data.
3. Comprehensive Benefits
Economic Benefits
•Solar power prioritized for daytime factory production, drastically reducing expensive industrial peak power bills.
•Extra electricity exported to grid brings steady long-term extra revenue.
•25-year system service life offsets the rising trend of industrial electricity prices.
Environmental Benefits
Over 25 years, the system saves 480 tons standard coal and cuts 1,300 tons CO₂ emissions, lowering discharge of dust and sulfur pollutants. It meets corporate green rating and carbon audit standards, enhancing the brand’s eco competitiveness.
4. Project Summary
This 1.5MW large rooftop PV project in Ningbo follows our standardized closed-loop 7-step service workflow, perfectly suitable for large connected factory rooftops. It addresses two core pain points of manufacturers: high energy costs and low-carbon upgrading demand, serving as a benchmark case for large commercial & industrial distributed solar projects in China.
