PV hot water units: solar power for hot water
PV hot water units divert surplus solar power into a hot water cylinder instead of feeding it into the grid. The collection is aimed at owners of a PV system with a hot water cylinder who want to increase their self-consumption and make sensible use of a heating element or boiler.
Output is important: heating elements and controllers are available with 2, 3 and 9 kW, and from My-PV also single-phase or three-phase. Check whether a screw-in or immersion heating element fits your cylinder and whether the control needs an electricity meter. For SolarEdge systems, the brand's hot water controllers can be used.
Our range includes My-PV with AC ELWA 2, AC THOR 9s, heating elements and accessories such as Modbus and USB interface, electricity meter and temperature sensor, as well as SolarEdge hot water controllers with 3 and 5 kW. Sensors, controllers and complete units can be ordered individually.
Electrical connection and installation in the cylinder belong in the hands of specialists. If you have questions about the combination, you can reach us on +49 931 760 260 40 or kontakt@energie24.shop.
Frequently asked questions
Is a PV hot water unit worthwhile?
That depends on your surplus and how the cylinder is used. Those who feed in a lot and heat water electrically can benefit. We cannot promise a binding level of profitability.
What is the difference between ELWA and THOR?
Both divert surplus power into a heating element. The ELWA is designed as a ready-made hot water unit, the AC THOR as a power controller for heating elements. The product pages describe the setup and connected load.
Do I need an electricity meter as well?
For surplus-based control, grid consumption is measured. Manufacturers offer meters and measuring clamps as accessories for this. Whether your device needs one is stated in the data sheet.