Our 3~200kW Off Grid Solar Energy Storage Systems are designed to provide clean, reliable, and uninterrupted power for a wide range of residential and small commercial applications. Each system is tailored to your specific electricity consumption and usage patterns, ensuring the optimal configuration for your needs. Combining high efficiency solar panels, intelligent hybrid inverters, and long life Grade A LiFePO4 batteries, these systems operate independently from the grid or with grid bypass when required delivering continuous power during nighttime, cloudy weather, or unexpected outages.
Key Advantages :
Battery Home Load Wide Power Range: From 3kW to 200kW, covering small homes to large villas and small commercial sites
International Standards: EU/US Standard
Flexible Output: Single Phase / Split Phase / Three Phase options
High Performance Storage: Grade A LiFePO4 cells with ≥ 6000 cycle life
24/7 Power Supply: Reliable backup for nights, rainy days, and power outages
Cost Saving: Maximizes solar power usage to significantly reduce electricity bills
Modular Design: Easy expansion, flexible installation, and simple maintenance
Customize Your Solar System
Step 1: Provide Your Electricity Bill or Total Load
Step 2: System Sizing & Proposal
Step 3: Installation & Commissioning
From initial consultation to final installation and after sales support, we provide a complete, end to end solution to ensure your solar project runs smoothly and efficiently.
Applications :
Remote areas without access to the grid
Regions with unstable power supply or frequent blackouts
Homes and small businesses requiring backup power
Users seeking energy independence and lower utility costs
Specifications :
| Off Grid Solar Energy System Configuration |
|
| Models |
5KW |
8KW |
10KW |
15KW |
20KW |
50KW |
|
| AC Voltage |
Single Phase (220~240Vac) / Three Phase (360~480Vac) |
|
| Solar Panel |
5KW |
8KW |
10KW |
15KW |
20KW |
50KW |
|
| Off Grid Inverter |
5KW |
8KW |
10KW |
15KW |
20KW |
50KW |
|
| Battery |
5KWH |
10KWH |
15KWH |
20KWH |
30KWH |
35KWH |
| 51.2V100AH |
51.2V200AH |
51.2V300AH |
51.2V400AH |
51.2V600AH |
51.2V700AH |
| PV Combiner Box |
Customized & Optional |
|
| PV Cable 4 mm2 |
100m |
150m |
200m |
300m |
400m |
1000m |
|
| MC4 Connector |
Full set |
|
| Mounting Bracket |
Customized (Roof type/Ground type/Carport type) |
|
Packaging & Shipping
We can arrange Door to Door delivery service for small orders or samples .
Company Information
HEYI ENERGY is a leading high tech enterprise specializing in the development and manufacturing of advanced lithium battery technologies. Established in 2014, we focus on lithium iron phosphate (LiFePO4) and lithium ion (NMC) battery solutions, delivering safe, reliable, and efficient energy storage systems for global markets.
Our state of the art production facilities span over 50,000 square meters, equipped for the large scale manufacturing of both battery cells and packs. With a workforce of more than 1,500 employees, including over 300 experienced R&D engineers, we continuously drive innovation and quality through technological leadership.
HEYI ENERGY proudly provides OEM and ODM solutions to 100+ global partners, enabling customized energy solutions across a wide range of applications. Our product portfolio includes:
-
Residential energy storage systems
-
Commercial and industrial energy storage solutions
-
Power batteries for various vehicles and industrial machinery
-
Ultra Low temperature batteries for extreme environments
Our core technical team possesses extensive expertise in battery system design, battery management systems (BMS), operational control, and rigorous cell and module testing. From the initial concept to the final product, we ensure system compatibility, stability, and long term reliability.
At HEYI ENERGY, our mission is to provide sustainable, cost-effective power solutions that not only meet the evolving needs of our customers but also contribute to a greener, low carbon future.
HEYI ENERGY : A globally recognized manufacturer of lithium battery and solar energy products.
FAQ
Q: Do you offer free samples?
A: We don't provide free sample, but the sample cost can return to you when you place bulk orders .
Q: What is your terms of payment?
A: We accepted most of payment terms, like T/T,L/C at sight, PayPal, Western Union, Cash etc.
Q: What is a minimum number (pieces) of order for this product?
A: Our MOQ is 1 piece, the more the quantity, the more preferential it is.
Q: How many time you need for production of one sample?
A: If customized according to customer requirements, production time needs 10-15 working days, if it’s our standardized products most of the time we can supply from stock .
Q: How do you ship the products?
A: For small orders or samples we can arrange door to door air freight delivery , for large quantity we normally arrange container or LCL ocean shipment .
Q: How much does shipping cost?
A:It depends on the quantity of goods, the shipping method, and the country . But we will always figure out the best choice for you .
Q: How can I get the best prices?
A: You get cheaper per-item price when you buy larger quantities. Use the website to check prices. Returning customers receive better discount levels.
Q: What if the product is broken?
A: If any product is faulty, you can send me the picture or video to us, and we will study it. And provide the spare parts for after sale service.
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