Solar power storage system project case study - 15kW hybrid Inverter and 20kWh LiFePO4 battery

In regions like Yemen, where power outages are frequent and grid stability remains a challenge, having a dependable, cost-effective energy solution is not just an option—it’s a necessity. MOTOMA’s advanced solar energy storage system, recently installed in Yemen, offers a high-performance, scalable solution for homes, small businesses, and industrial users alike.

System Overview

• 2 units of 10.24kWh lithium energy storage batteries (MOTOMA M88PW)
• 1 unit of 15kW three-phase hybrid inverter (InfiniSolar WP 15KW HMI)
• High-efficiency 555W mono PERC solar panels

This setup ensures uninterrupted power delivery for essential loads, reduces electricity bills through solar generation, and minimizes reliance on the grid during peak demand periods.

Energy Storage System: MOTOMA M88PW Battery

• Nominal Voltage: 51.2V
• Nominal Capacity: 200Ah
• Energy Capacity: 10.24kWh
• Cycle Life: ≥6000 cycles @ 80% DOD
• Max Charging/Discharging Current: 150A
• Weight: 97.5kg

Total Storage Capacity: 2 × 10.24kWh = 20.48kWh

Inverter System: InfiniSolar WP 15KW HMI

• Power Output: 15kW (3-phase)
• IP Rating: IP65 – suitable for indoor/outdoor
• Parallel Capability: Up to 6 units (max 90kW)
• Features: Grid-tie, off-grid, hybrid modes, mobile monitoring, programmable priority and voltage settings

Solar Panel Array: 555W Mono PERC Panels

• Technology: Passivated Emitter and Rear Cell (PERC)
• Output per Panel: 555W
• Average Daily Energy (5 sun hours): 2.775kWh/panel
• Panels Required: 20.48kWh ÷ 2.775 ≈ 8 → Recommend: 9–12 panels

Load Capacity and Runtime Estimation

• Full Load (15kW): ~1.36 hours
• 50% Load (7.5kW): ~2.73 hours
• 3kW Load (Typical Household): ~6.8 hours

Supports lights, appliances, office equipment, security systems, and more.

Applications

• Residential: Backup power and cost savings
• Commercial & Industrial: UPS, critical equipment support
• Rural Electrification: Schools, clinics, telecom systems

Why Choose MOTOMA?

• Top-grade lithium iron phosphate cells with UL1973 certification
• Long life cycle and intelligent BMS protection
• Compact, lightweight, and eco-friendly design
• Modular and scalable up to 15 packs

This MOTOMA solar + storage solution in Yemen showcases how innovative energy technology can provide not just reliable power but also real economic value. Whether you‘re looking to secure household power during outages or reduce industrial energy costs, this system delivers scalable performance in any condition.

For tailored solutions, technical consultations, or project collaborations, contact MOTOMA’s international project team.