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Smart Solar Solutions for a Sustainable Future

ONESTO Energy – A trusted global leader in photovoltaic products intelligent manufacturing since 2005. Delivering high-quality solar inverters, batteries, DC combiner boxes, and complete system components for residential, commercial, and industrial applications.

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15+ Years

Global Industry Experience

1000+

Global Customers

50+

Utility Model Patents

About ONESTO Energy

Founded in 2005, ONESTO is a high-quality solar electrical products brand integrating design, R&D, and production. After 15 years of innovation and growth, we have become a global leader in photovoltaic products intelligent manufacturing.

As a high-tech enterprise in Zhejiang Province, we hold numerous patents in the field of photovoltaic technology and are committed to continuous product innovation. Our mission is to provide comprehensive, reliable, and efficient solar energy solutions for residential, commercial, and industrial projects where quality is essential.

  • Complete quality tracing system for all products
  • End-to-end solar system solutions
  • One-stop shopping for solar components
  • Global expertise in solar energy systems
ONESTO Factory

Our Product Categories

ONESTO offers a complete range of high-performance solar energy components designed for reliability, efficiency, and long-term durability.

Solar Inverters

AC Coupled, Hybrid, and On-Grid inverters from 2kW to 60kW for all solar applications.

Solar Batteries

Lithium-ion energy storage batteries with built-in BMS for safe and efficient power storage.

DC Combiner Boxes

High-quality DC combiner boxes with integrated protection components.

DC Circuit Protection

DC MCB, MCCB, fuse holders, isolator switches, and surge protection devices.

PV Components

PV connectors, branch cables, and solar cables for complete system integration.

DC Fuses & Links

Reliable DC fuse systems for overcurrent protection in solar installations.

Featured Products

Explore our most popular solar energy components engineered for performance and reliability.

5kw AC Coupled Solar Inverter

5kW AC Coupled Solar Inverter

Versatile inverter converting solar energy into usable AC power for residential and commercial applications.

  • • Power: 5kW
  • • Application: AC Coupled
  • • Ideal for retrofit solar systems
4.6~6kW Hybrid Solar Inverter

4.6~6kW 60A Hybrid Inverter

Dependable hybrid inverter supporting up to 6kW solar input with battery integration.

  • • Power Range: 4.6–6kW
  • • Output: 60A
  • • Single Phase
5.1kWh Lithium Battery

5.1kWh Lithium-Ion Battery

Energy storage battery with built-in BMS for safe operation in photovoltaic systems.

  • • Capacity: 5.1kWh
  • • Built-in Battery Management System
  • • Compact & lightweight design
50-60kW On Grid Inverter

50~60kW Three Phase Inverter

High-capacity inverter tailored for industrial and commercial solar applications.

  • • Power: 50–60kW
  • • Three Phase, Dual MPPT
  • • On-Grid Smart Inverter
DC Combiner Box

DC 1000V Combiner Box

2-in-1-out solar junction box with high-voltage DC protection and monitoring.

  • • Voltage: 1000V DC
  • • 2 Inputs, 1 Output
  • • Integrated surge protection
DC Fuse Holder

DC Fuse Holder

Reliable protection for DC electronics, preventing overloads and ensuring system safety.

  • • High-current DC protection
  • • Durable construction
  • • Easy installation
4.6~6kW 120A Hybrid Inverter

4.6~6kW 120A Hybrid Inverter

Advanced hybrid inverter combining solar, battery, and grid power management.

  • • Power: 4.6–6kW
  • • Output: 120A
  • • Single Phase, High Efficiency
5.8kWh Lithium Battery

5.8kWh Lithium Energy Storage

Compact and lightweight lithium battery with high energy density for residential use.

  • • Capacity: 5.8kWh
  • • High energy density
  • • Built-in BMS protection
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Why Choose ONESTO?

We deliver innovation, quality, and reliability across every product we manufacture.

Quality Guaranteed

Complete quality tracing system for all components and delivered products.

High Efficiency

Advanced MPPT and inverter technologies for maximum energy harvest.

Built to Last

Robust construction and materials for long-term durability in harsh environments.

Global Support

Serving over 1000 customers worldwide with professional after-sales service.

Frequently Asked Questions

What types of solar inverters does ONESTO offer?

ONESTO offers AC Coupled, Hybrid, and On-Grid solar inverters ranging from 2kW to 60kW, suitable for residential, commercial, and industrial applications.

Are your solar batteries compatible with all inverters?

Our lithium-ion energy storage batteries are designed for compatibility with most photovoltaic systems and come with a built-in BMS for safe integration.

Do you provide OEM/ODM services?

Yes, ONESTO offers OEM and ODM services for clients seeking customized solar energy solutions and branding.

What certifications do your products have?

Our products meet international standards and are certified for safety, performance, and reliability. We maintain strict quality control throughout production.

Get in Touch

For inquiries, partnerships, or technical support, visit our official website to contact the ONESTO team.

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