Solar Immersion Control Units


What does a solar immersion control unit do?

Up to 70% of the energy produced by domestic solar pv systems is exported back to the grid as it is in excess of the house requirements at the time. 

A solar immersion control device such as an i Boost or Immersun uses this excess electricity and effectively transforms your Solar PV system into a Solar Thermal system.

Unless you have an export meter fitted, your electricity company assumes that 50% of the electricity you generate from your panels is sent back to the grid. With tan immersion heater control unit you could use all of this exported electricity and still get paid for the 50% from the electricity company.

The control unit is designed to work in properties which have a hot water cylinder with either an immersion heater installed or the facility to have one installed.As soon as your PV system starts to export power to the grid the control unit redirects any excess generated electricity to the immersion heater in the hot water cylinder. 

The control unit works with all Solar PV systems and immersion heaters.

If the load in your house changes, e.g. you put the dishwasher or washing machine on, the controller will recognise this and reduce the amount of power sent to the immersion, therefore maintaining the independence from the grid.


What are the benefits of the Immersion controller?

With the immersion control unit, only the electricity that would have been exported to the grid is used by the immersion heater. 

This device means that you don’t have to be at home on a nice sunny day to enjoy the benefits of free electricity. When you have any ‘spare’ electricity, you can enjoy a free tank of hot water.

The unit does not affect your feed in tariff payments, it will increase your return on your investment. This could mean that your boiler remains off during the warmer months reducing your energy bills significantly. The payback period for is usually 3-5 years.

The units have an LCD display screen which tells you how much energy you have saved.

Immersion Control Manufacturer

Solar iBoost

Solar iboost immersion heat control unit

Marlec’s innovative Solar iBoost+ enables you to automatically consume the excess energy generated at your home so you can just sit back and enjoy the extra savings! 

myenergi - eddi

myenergi eddi immersion heater control unit.

Myenergi is a British designer and manufacturer of renewable products that increase the self-consumption of green energy.