AC ELWA 2

• Linear power control from 0 to 3.5 kW, depending on PV surplus

• Self-consumption increases

• Easy communication via network cable or WLAN

• Heating power is linearly controlled

• Installation in hot water and buffer storage tanks possible

• System open for various inverters, battery systems and Smart Homes

Efficient heating meets outstanding design: In the category of "Excellent Product Design – Energy," AC ELWA 2 has been awarded with the title "Winner".

"AC ELWA 2 transforms surplus solar power into hot water, thereby increasing self-sufficiency. It's a purposeful product that strikingly combines high-tech performance with a clear and dynamic design language," states the jury of this prestigious award, acknowledging our linearly controlled hot water preparation device for grid-connected photovoltaic systems.

More information about winning the German Design Award 2024 can be found here.

In combination with my-PV WiFi Meter, AC ELWA 2 only uses surplus energy from your photovoltaic system. The heating power of the heating element is controlled linearly so that almost no energy is fed into the grid and your self-consumption reaches a maximum.

The connection to the router is made via a patch cable or wirelessly via WLAN.

More information about the my-PV WiFi Meter is available here.

AC ELWA 2 is compatible with many commercially available battery storage systems. It takes into account the optimal use and prioritisation of photovoltaic energy.

The battery storage is always charged first. As soon as the battery is full, AC ELWA 2 takes over the storage of excess photovoltaic energy in the form of hot water. Water is the cheapest form of storage and can be perfectly complemented with chemical storage batteries. This way, the electricity you generate stays with you and is not fed into the grid.

Click here for the compatible manufacturers.

Thanks to the open-system control, AC ELWA 2 also communicates with commercially available Smart Home and energy management systems. Control is carried out by the Smart Home system. This way, even complex control systems with priority setting by the consumers can be realised.

In residential buildings, systems with multiple devices work together on this basis. Remote monitoring and energy cost billing are possible at the apartment level.

Click here for the compatible manufacturers.

On days with low sunlight, the AC ELWA 2 can utilize cheaper electricity from the public grid for heating supply.

Anyone with a photovoltaic system and a dynamic electricity tariff can use the my-PV DTO to access cheap energy from the grid for heating even on cloudy days or at night when the PV system doesn't provide enough electricity. The my-PV DTO is easily activated in the my-PV Cloud and controls heating automatically – based on the lowest market electricity prices. The my-PV DTO works in combination with all IoT-capable my-PV devices.

How many countries is the my-PV DTO available in? You can find this and all other information here.