Ontario Off-Grid Solar System: SWNPOWER 10KW Inverter & Lithium Battery Success Story

Successful Off-Grid Residential Project in Ontario: Outstanding Performance of SWNPOWER Solar Storage System

Project Background

A remote residential project in Ontario, Canada, faced challenges with an unstable local power supply and harsh winter conditions. To ensure continuous and reliable electricity throughout the year, the homeowner decided to invest in a solar storage system. After extensive research and comparison, they chose SWNPOWER’s solar inverter and energy storage solution.

Solution

To withstand extreme cold and limited sunlight during winter, the homeowner selected the SWNPOWER 10KW 48V low-frequency pure sine wave split-phase inverter https://swnpower.com/products/67/3kw5kw6kw8kw10kw12kw-110vac-220vac-or-120v-240v-dual-output-split-phase-inverter. This inverter is known for its high stability and efficiency, ensuring reliable performance under demanding conditions.

The system was complemented by a 48V 100A MPPT solar charge controller , designed to maximize solar panel power output. Even in low-light winter conditions, it optimizes energy harvesting to maintain a steady power supply.

Additionally, the system included a 48V 300AH lithium battery, providing ample energy storage. Lithium batteries are an ideal choice for off-grid systems due to their long lifespan, high energy density, and excellent low-temperature performance.

Core Equipment Configuration

Equipment	Model	Key Features
Low-Frequency Inverter	SWNPOWER 10KW 48V	• Pure sine wave output (THD <3%) • 7-inch color touchscreen • Wide operating temperature range (-30°C to 60°C) • Grid/solar/battery triple-mode switching
MPPT Controller	SWNPOWER 48V 100A	• 98% tracking efficiency • Smart battery management
Lithium Battery	51.2V 300AH	• long lifespan, high energy density • excellent low-temperature performance.

Equipment

Model

Key Features

Low-Frequency Inverter

SWNPOWER 10KW 48V

• Pure sine wave output (THD <3%)
• 7-inch color touchscreen
• Wide operating temperature range (-30°C to 60°C)
• Grid/solar/battery triple-mode switching

MPPT Controller

SWNPOWER 48V 100A

• 98% tracking efficiency
• Smart battery management

Lithium Battery

51.2V 300AH

• long lifespan, high energy density

• excellent low-temperature performance.

System Performance

The system has been running for over six months, and the homeowner has reported outstanding performance. Here are some key benefits:

High Efficiency – Even during winter with limited sunlight, the MPPT charge controller ensures maximum power output from the solar panels.
Stable Performance – The low-frequency pure sine wave inverter operates reliably in extreme cold, providing uninterrupted power for household appliances.
High Reliability – The lithium battery’s high energy density allows for extended power storage, maintaining excellent performance even in freezing temperatures.
Remote Monitoring – Equipped with Wi-Fi monitoring capabilities, the homeowner can check real-time system status and performance via a mobile app, enhancing system transparency and control.

Technical Highlights

✅ Low-Frequency Transformer Design: Safer for motor-based loads (e.g., pumps, tools).
✅ PV DC Coupling: Eliminates additional charging devices, improving system efficiency by 15%.

✅ Scalable Design: Supports future battery expansion (up to 2000Ah).

System Advantages

1. Intelligent Monitoring System
- Color display provides real-time data:
  ✓ Power generation/consumption curves
  ✓ Battery state of charge (SOC)
  ✓ Self-diagnostic fault codes
- Supports Wi-Fi remote monitoring (optional module required).
2. Efficient Energy Management
- MPPT controller improves power generation efficiency by 22% under weak winter sunlight.
- Smart charging/discharging algorithms extend battery life by 30%.

Customer Feedback

The homeowner is highly satisfied with the performance of the SWNPOWER system. The system has provided stable electricity supply even in harsh winter conditions, preventing power outages and improving overall living comfort. After six months of operation, the investment in this solar storage system has proven to be well worth it.

"This system perfectly solved our power issues, especially during snowstorms. The touchscreen makes it easy for the whole family to monitor the system, and SWNPOWER’s 24/7 technical support has been impressive."
— Michael R., Project Homeowner

Why Choose SWNPOWER?

Superior Quality – SWNPOWER inverters and solar controllers are built with advanced technology and high-quality components, ensuring long-term reliability even in extreme environments.
Comprehensive Technical Support – SWNPOWER provides professional after-sales support, including installation guidance, technical consultation, and remote monitoring services, ensuring customer satisfaction.
Long-Term Reliability – SWNPOWER is dedicated to delivering efficient, stable, and sustainable green energy solutions, helping customers reduce energy costs while contributing to environmental protection.

Conclusion

The successful implementation of SWNPOWER’s 10 kW 48V solar storage system in Ontario demonstrates its exceptional performance in extreme weather conditions. Whether for off-grid residential projects or commercial applications, SWNPOWER provides efficient and reliable energy solutions.

If you are looking for a stable and high-performance solar storage system, feel free to contact us for more information about our products.

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