ers

The Smart PV Diverter
NOW AVAILABLE

The T-Smart ERS allows you to take full control of your hot water heat cycles, utilising excess PV power when available and taking advantage of off-peak rates overnight with the built in T-Smart timer.

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Powerflow ERS PV Diverter

T-Smart E.R.S Pro sets new standards for solar immersion control

The most powerful solar immersion controller

With a class leading efficiency of 98% and proven reliability with a 5 year warranty, the
T-Smart E.R.S energy diverter is the premium choice.


T-Smart E.R.S saves energy by directing excess solar electricity to heat your hot water or home.


  • Five Operating Modes Including Smart Learning
  • Crystal Clear LCD Display
  • Remote App Boosting and Temperature Control
  • Plug and Play Connectors
  • Total Bypass Mode
  • Battery Compatibility

F-POINT technology®

Industry leading patented technology ensures no energy is wasted.

Saves money

With Energy prices rising reducing energy consumption is more important than ever.

Fast installation

Installers love it!

With pre wired connectors and auto setup software, it's a doddle.

Fanless cooling

Completely silent, the custom IP metal case, keeps out dust & moisture while staying cool and reliable.

Boost feature

Need a boost?

No problem! The manual and timed override features enable full control when needed.

Market leading warranty

E.R.S is designed and built to last. But if you need support we've got you covered.

Cost effective

Storing solar energy as hot water is currently the most cost effective way to store surplus solar energy. Built to industry leading standards, including a host of cutting edge features, E.R.S PRO has class leading efficiency, a high end aluminium finish and is quick and simple to install.

Live readings

The LCD display gives live accurate information on the buildings energy demand and the easy to use menu gives flexible setup options for both installer and user.

The ideal combo

T-Smart E.R.S is an ideal partner in combination with biomass or heat pump systems and can be used to divert exported energy into large thermal stores and buffer cylinders helping to reduce chip or electricity cost.

Fully compatible with third party battery systems

F-POINT technology® is PowerFlow's patented power control measurement system. With reactions to changes in export levels of five times per second E.R.S is in a class of its own. This enables the measurement system to be adjusted according to any third party battery systems meaning priority can be set for either device.

Limitless Flexibility

& Full Control

E.R.S PRO intelligently considers how much power is being generated and how big each load is. Each output can be assigned priority as required, dictating how much energy is then diverted to each load. 

Advanced F-POINT Technology®

F-POINT technology® ensures energy is always supplied from the renewable source, eliminating unwanted import. This is essential in commercial applications where large amounts of energy are being transferred.

T-Smart ERS Pro sets new standards for immersion control

The divertor enables accurate control of electrical heating loads, such as immersion water heaters. E.R.S is able to smoothly divert additional solar energy to be stored as heat. It does this in partnership with the T-Smart technology, enabling control of your existing heating element meaning no other specialist heating equipment is required. Recovering energy in this way results in an electricity, gas or oil saving.


Advanced Solar Immersion Heating​ – During its daily cycle, a grid connected renewable generator such as solar PV, produces electrical power based on available sunlight. Due to the very nature of this renewable technology the production of power does not always coincide with the demand. When energy production is greater than demand, the surplus is sent back (or exported) to the national grid where your solar energy is used by someone else. This results in lost savings.


T-Smart ERS Pro is designed to divert this excess energy during times of high generation, reducing the amount you export, increasing your savings as well as helping the planet along the way.


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