Hot showers. Cheap hours.
A smart immersion is the lowest-cost flexible device in your home - and one of the highest-impact. We run the cylinder when electricity is at its cheapest and cleanest, so you wake up to a tank of hot water without paying daytime rates.
Lower bills. Less faff. Same device.
Shift the immersion out of standard rate and into the night-rate window. Typical home saves €120–€220/yr - on a small device.
We learn your usage pattern - shower times, dishwasher cycles - and make sure the cylinder is full ahead of demand.
Smart immersion controllers cost €200-€400 fitted. Payback typically inside a year, faster than any other VPP device.
Three steps. Zero changes to your routine.
- 01Connect your immersion.
MyEnergi Eddi, Solic, Climote, Hive, Drayton Wiser, Aquarea — most smart immersion controllers are supported via their existing API.
- 02We learn the household.
Showers in the morning? Dishwasher at night? We map your hot-water draw and pre-heat just in time.
- 03It runs in the cheap window.
Most nights that means a single 90-minute heat between 2-4am. Cheapest electricity, hottest tank, none of the work.
Common questions.
Do I need a new immersion controller?
If you have a smart controller (Eddi, Climote, Hive immersion, Solic) we plug into it directly. If not, we can recommend one - typical fit is €200-€400 and pays back inside a year.
Will the cylinder ever go cold?
No. We model your draw pattern and keep a buffer above predicted demand. You'll hit a hot shower every morning.
Can I still boost manually?
Yes - one tap. We step out of the way for any manual boost and return to schedule afterwards.
Does this work with solar diversion?
Yes. Solar diversion (Eddi, Solic) takes priority - we only kick in to top up after solar has done what it can.
Be first when we go live in your area.
Leave your details and we'll let you know the moment Driving Green is ready for your device. No spam, no commitment.
- Free to enrol when we launch
- Software only - no hardware to install
- Override any time, your devices stay yours