The immerSUN monitors the electricity which is about to be exported to the grid and diverts it to the immersion heater. It then automatically directs any excess generated electricity, not used by the house, to the immersion heater in the hot water cylinder.
If the load from the house increases, eg. the washing machine is turned on, the immerSUN will reduce the amount sent to heat water to help you maintain independence from the grid.
Benefits of using immerSUN
Use your free electricity when you're out
Our energy saving device for solar directs excess electricity to the immersion heater, storage heater, or electric underfloor heating.
Increase your return on investment
Adding an immerSUN to your PV installation can increase your return of investment by up to 5%.
When using the immerSUN to heat water with PV we estimate you could achieve a payback on the unit of between 2-5 years.
A solar controller that is simple to install
The immerSUN uses your existing immersion heater when using your solar panels to heat water and can take as little as twenty minutes to install.
Use your free energy and still get paid
Use up to 100% of your generated electricity and still get 50% export FiT
Higher efficiency reduces your energy bills
By using more of your free electricity you will make substantial savings that can equate to up to £250 per annum.
Built in hot water timer with added Boost function
You have total control over your hot water with our advanced features
Accurate Data Monitoring
The immerSUN uses hard-wired, fixed installation methods (no batteries required) enabling accurate data reporting with no need to replace batteries.
It's great to have several reasons to recommend a device like the immerSUN. First of all, it is manufactured in the UK (hurrah!) not China; secondly, it has been conceived and designed by a Lincolnshire team committed to renewable technology; and last - but not least - it really works!
Several months in and I can't believe how effective this product is at diverting all of that excess solar electricity generation straight into your immersion heater, or other heating circuits if you have them. Forget solar thermal and all the associated costs, this magic little box will help keep your water piping hot for most of the year, saving you a fortune in energy bills and - importantly - reducing your carbon footprint. One day, all houses will be equipped with devices like these. If you have solar panels and an immersion heater, then make sure you get an immerSUN - and enjoy watching the savings add up.