Premium Automatic Changeover Switch for Solar & Battery Systems

Installer-Grade Automatic Changeover Switch for Solar & Battery Systems

The Eco-ESS Automatic Changeover Switch (ATS) is a professionally engineered solution designed for seamless backup power across full property solar and battery installations.

Built for whole-property backup and safe island mode operation, this system delivers instant automatic transfer during a grid failure, while maintaining correct electrical isolation and neutral bonding in line with UK installation standards.

This isn’t a basic transfer switch.
It’s a core part of your energy infrastructure.

Why Eco-ESS?

At Eco-ESS, we design energy infrastructure, not generic electrical hardware. Our Automatic Changeover Switch is engineered for seamless integration with solar PV and battery storage systems, ensuring reliable, compliant performance.

Smart+ upgrade available for enhanced control and monitoring

Premium build quality for long-term reliability

Installer-focused design for easy, safe installation

Book Your Solar Backup Consultation

Book Here

Automatic Changeover Switch Solar Backup Explained

This video shows how an automatic changeover switch operates during a power cut, switching from grid supply to battery backup and back again once mains power is restored.

Why a Premium Automatic Changeover Switch Matters

Why Most Transfer Switches Fall Short

Many generic transfer switches fail to meet the demands of a full UK property. They often:

  • Struggle to handle whole-property loads effectively
  • Miss essential neutral-earth bonding requirements
  • Provide no monitoring or user control features
  • Offer zero visibility during power outages

As a result, they deliver only limited backup, not true energy security.

The Eco-ESS ATS: Built for UK Solar & Battery Systems

The Eco-ESS ATS is purpose-built for UK solar and battery installations, ensuring reliable and compliant performance. It delivers:

  • Fast and accurate automatic grid detection
  • Safe, compliant disconnection from the mains supply
  • Correct island mode operation for uninterrupted power
  • Smooth, seamless reconnection once the grid stabilises

Two Specification Levels to Suit Your Installation

 Standard ATS
Automatic Protection

Designed for Homeowners Seeking Fully Automatic Operation

-Dual pole switching
-Whole-property backup capability (subject to inverter rating)
-Neutral-earth bond implementation in island mode
-Hybrid & AC-coupled inverter compatibility
-Fast transfer response
-Installer-friendly layout

This version requires no user interaction.

Smart+ ATS
With Shelly Pro 2 Integration

For homeowners who value visibility and control over their backup power.

-Instant push notifications when grid power fails
-Notification when mains supply returns
-Remote monitoring of switch state
-Manual activation of island mode via mobile app
-Voluntary pre-emptive grid isolation
-Remote verification of backup status

This moves the ATS from passive protection to active energy management.

The Smart+ ATS gives homeowners the ability to manually switch into island mode, providing full control over backup power. It’s ideal for storm preparation, rural or second-home setups, and areas with unreliable DNO supply. Unlike most ATS products, it allows intentional island activation, offering flexibility and peace of mind.

Stay Safe, Powered, and Protected

Get Tailored Advice for Your System

Frequently Asked Questions

The Standard version operates automatically during grid failure. The Smart+ version adds app notifications, remote monitoring and manual island activation.

Yes — on the Smart+ version via the Shelly app.

Yes — Smart+ sends instant push alerts when mains fails and when restored.

Yes. Compatible with hybrid and AC-coupled systems.

Yes — subject to inverter and battery capacity.