Turn-key commercial & industrial solar PV + battery energy storage system (BESS) for factories, industrial parks, logistics centers and commercial buildings. Modular LFP design from 72kWh to 2.6MWh per cabinet, scalable to multi-MWh. UL9540A, IEC62619, CE & IEEE 1547 certified. Peak shaving, demand charge reduction, backup power & smart energy management. Full EPC turn-key service including engineering, procurement, installation, commissioning and long-term O&M.
Commercial & Industrial Solar + Energy Storage Solution
- 1. **Modular & Scalable Design**
- 72kWh–2.6MWh per cabinet, expand to multi-MWh as load grows.
- 2. **High ROI in 4–7 Years**
- Peak-valley arbitrage + demand charge reduction + solar self-consumption.
- 3. **UL9540A & IEC Certified**
- Full US/EU certification package, ready for grid interconnection.
- 4. **Seamless Backup Power**
- <10ms off-grid switch, keeps critical loads running during outage.
- 5. **Full EPC Turn-Key Service**
- Engineering, procurement, installation, commissioning & 10-year O&M.
Commercial & Industrial Solar + Energy Storage Solution
Integrated rooftop solar PV + battery energy storage system (BESS) for industrial parks, factories, logistics centers and commercial buildings. Modular design from 72kWh to 2.6MWh per cabinet, scalable to multi-MWh. UL9540A, IEC62619, CE and IEEE 1547 certified. We deliver full EPC turn-key service: engineering, procurement, installation, commissioning and long-term O&M.
Get A Quote
Tell us your building area, monthly electricity bill and peak demand, we will provide ROI analysis within 48 hours.
What Is This Solution
Our C&I solar-plus-storage solution combines rooftop or ground-mounted photovoltaic panels with lithium iron phosphate (LFP) battery storage to reduce electricity costs, provide backup power and support grid services. The system automatically shifts load: charge batteries with solar surplus or low-price grid electricity, discharge during peak tariff hours or when grid fails.
Typical payback period is 4–7 years depending on local electricity tariff structure, peak-valley price difference and government incentives. We provide full EPC turn-key delivery including site survey, structural assessment, electrical design, equipment supply, on-site installation, grid-connection application support and 10-year after-sales service.
Core Technical Parameters
| Item | Specification |
|---|---|
| Battery Chemistry | LFP (Lithium Iron Phosphate), safe, non-toxic, long cycle life |
| Modular Capacity | 72 kWh / 100 kWh / 215 kWh / 372 kWh per cabinet; multi-cabinet parallel up to MWh scale |
| PCS Power Rating | 50 kW / 100 kW / 250 kW / 500 kW / 1 MW (scalable) |
| Round-Trip Efficiency | ≥ 92% (AC-coupled, full system) |
| Cycle Life | ≥ 6,000 cycles at 80% DOD, 25°C |
| Design Lifetime | 10–15 years |
| Cooling Method | Air-cooled (standard) / Liquid-cooled (optional for high-temperature regions) |
| Protection Rating | IP54 (outdoor cabinet); IP65 available as custom option |
| Operating Temperature | -20°C to +55°C (derating above 45°C) |
| Off-Grid Switch Time | < 10 ms (seamless transition for critical loads) |
| PV Module Power | 540–620 W mono PERC / N-type TOPCon, half-cut cells |
| PV System Voltage | 1000 V / 1500 V DC |
| Inverter Type | String inverter (50–350 kW) / Central inverter (500 kW–2.5 MW) |
| Communication | RS485 / CAN / Ethernet / 4G / Wi-Fi; remote monitoring platform included |
| BMS | 3-tier BMS (BMU / BCU / BAU), SOC & SOH estimation, cell balancing |
System Composition
Solar PV Subsystem
- Mono PERC / N-type TOPCon modules (540–620W)
- String or central inverter with MPPT
- Roof mounting structure (ballasted / racking / BIPV)
- DC combiner box, AC distribution cabinet
- Lightning protection & surge protection device
Energy Storage Subsystem
- LFP battery rack / cabinet modules
- PCS (Power Conversion System), bi-directional
- 3-tier BMS (Battery Management System)
- EMS (Energy Management System), smart scheduling
- Thermal management (air / liquid cooling)
- Fire detection & gas suppression system
Typical Application Scenarios
Industrial Park Rooftop PV + Storage
Logistics Center / Warehouse
Commercial Building / Mall
Data Center / Critical Load
Factory with High Electricity Cost
Microgrid / Off-Grid Site
International Certifications
All core components (battery cells, PCS, BMS, PV modules) carry full international certifications. We support certification localisation for your target market.
UL 9540
UL 9540A
IEC 62619
IEC 61000
CE / EU
VDE-AR-N 4105
IEEE 1547
IEC 62040
UN 38.3
IEC 61730
MCS (UK)
SAA (Australia)
Core Advantages
Why This Solution
- Modular & Scalable: Start small, expand later. Add battery cabinets as load grows.
- High ROI: Peak-valley arbitrage + demand charge reduction + solar self-consumption.
- Safe LFP Chemistry: No thermal runaway risk compared to NMC; meets UL9540A.
- Smart EMS: AI-based scheduling automatically optimizes charge/discharge by tariff and load forecast.
- Dual-Mode Operation: Grid-tied with backup; seamless off-grid switch in <10ms.
What We Deliver (EPC Scope)
- Site survey & rooftop structural assessment
- Electrical design & single-line diagram
- Equipment procurement & shipping
- On-site installation & mechanical/electrical works
- Grid-connection application support
- Commissioning, performance test & handover
- Remote monitoring platform & training
- 24/7 after-sales & spare parts supply
Frequently Asked Questions
Q1: How long is the payback period for a C&I solar-plus-storage system?
Typical payback is 4–7 years. It depends on: local peak-valley electricity price difference, demand charge rate, annual sunshine hours, government subsidies, and system size. We provide a detailed ROI model with your project data.
Q2: What is the difference between AC-coupled and DC-coupled solar+storage?
AC-coupled: solar inverter and storage PCS connect separately to the AC bus. Easier to add storage to an existing PV system. DC-coupled: solar and storage share one bi-directional inverter on the DC side, higher efficiency but requires new installation. We recommend based on your project.
Q3: Can the system provide backup power during grid outage?
Yes. With built-in backup function, the system switches to off-grid mode in less than 10 ms, keeping critical loads running. You can define which loads are backed up (e.g. emergency lighting, control systems, cold storage). The battery capacity determines backup duration.
Q4: How much roof area do I need for 1 MWp solar?
Approximately 6,000–8,000 square meters of flat rooftop, or 5,000–6,000 square meters of sloped rooftop. We will conduct a free site survey and provide an exact layout drawing.
Q5: What certifications do you have for the US and European markets?
For US market: UL9540, UL9540A, IEEE 1547, UN38.3. For Europe: CE, IEC62619, IEC61000, VDE-AR-N 4105, IEC61730. We can support local certification application (e.g. SCE/PG&E interconnection in California, MCS in UK) as part of EPC scope.
Q6: Can I start with solar only and add storage later?
Yes. AC-coupled architecture supports phased expansion: install PV first, add battery cabinets and PCS later when tariff policy or load changes. The EMS and switchgear are pre-designed for future expansion.
Q7: What is the warranty?
PV modules: 12-year product warranty, 25-year linear power output warranty. Battery: 10-year or 6,000-cycle warranty (whichever comes first). Inverter: 5-year standard, extendable to 10 years. Whole system EPC warranty: 2-year workmanship.
Q8: Do you provide EPC service or just equipment supply?
We provide full EPC turn-key service: engineering design, equipment supply, shipping, on-site installation supervision, grid connection, commissioning and O&M. For overseas projects, we cooperate with local certified installation partners and provide remote engineering support.
Get A Free ROI Analysis
Share your monthly electricity bill, building rooftop area and target country, our engineering team will reply with preliminary proposal within 48 hours.
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