E.ON begins selling electricity storage system in Germany


E.ON Aura: all-in-one package consists of PV system, storage device, energy app, and green electricity tariff

  • Storage system developed in partnership with SOLARWATT
  • Charge efficiency of 93 percent
  • Advanced German technology and sleek design

E.ON has begun selling its E.ON Aura electricity storage system in Germany. The system is available immediately at www.eon-aura.de. The all-in-one solution consists of a storage device, the E.ON Aura app, and, if desired, an E.ON Aura PV system, and the E.ON Aura electricity tariff. The German energy supplier worked closely with Dresden-based SOLARWATT GmbH to develop the system.

E.ON Aura’s charge efficiency of 93 percent makes it one of the most efficient storage devices on the German market. The system can increase a home’s energy self-sufficiency rate—that is, the proportion of self-produced electricity the home consumes—from about one third to around 70 percent. “With a storage capacity of 4.4 kilowatt-hours, E.ON Aura can meet the entire electricity needs of a three- to four-person family during the evening and night hours,” Robert Hienz, Managing Director of E.ON Energie Deutschland, explained. The system is therefore perfectly tailored to the average German household’s energy consumption.

Highly efficient, simple to install

For homes that consume more electricity, the system’s storage capacity is easily expandable to up to 11 kilowatt-hours with additional battery modules. E.ON developed the system in partnership with SOLARWATT, a Dresden-based solar company and storage-device manufacturer. E.ON Aura is aimed primarily at environmentally conscious homeowners who wish to achieve greater energy autonomy and reduce their energy costs. The lithium-ion battery modules have an estimated operating life of up to 20 years, providing customers with lasting quality. The compact, wall-mounted storage device combines a sleek design and noise-free operation.

E.ON Aura app

The system comes with a user-friendly app that enables customers to monitor their home energy production and consumption any time, any place. All data are displayed in easy-to-comprehend, read-at-a-glance graphics. The app displays daily and weekly figures, making it possible to compare usage over time. It also learns continually, enabling it to adapt to a household’s usage patterns. The system is smart-grid-ready and therefore qualifies for assistance from Germany’s KfW development bank. In addition, it can be used to optimally control large-consumption devices such as heat pumps.

E.ON Aura electricity

“Along with the storage system, customers can opt for our exclusive yet reasonably priced E.ON Aura tariff, which provides electricity service from 100 percent renewable sources,” E.ON’s Robert Hienz explains. “This gives customers a complete and compatible package consisting of a PV system, storage device, app, and green electricity tariff.”

Customers who choose E.ON receive the complete solution from a single source and have a single contact point for all their questions. E.ON Aura is a practical example of E.ON’s resolute focus on the new energy world, which is characterized by renewables, distributed generation, energy efficiency, microgrids, and increasingly autonomous and proactive customers.

About E.ON Energie Deutschland

Munich-based E.ON Energie Deutschland GmbH ranks among Germany’s leading energy companies. From 34 locations around Germany its approximately 3,000 employees deliver reliable power and gas products at fair prices. The company also offers a range of innovative and sustainable energy services. E.ON Energie Deutschland’s roughly 6 million residential, business, and industrial customers in Germany benefit from its local presence across the country as well as its affiliation with the E.ON Group, a global leader in energy services. For more information, visit eon.de/solar (in German only).


Founded in 1993, SOLARWATT GmbH is one of Germany’s leading providers of photovoltaic solutions. The Dresden-based company, which has more than 200 employees, operates throughout Europe. Its solutions range from high-quality German-made solar modules to fully integrated, intelligent systems for domestic and commercial use. Since 2015 SOLARWATT has partnered with Bosch to market high-quality, technologically advanced energy systems. Since 2013 SOLARWATT has been a cooperation partner in BMW i’s “360° Electric” program to promote efficient, low-emission electric mobility.

This press release may contain forward-looking statements based on current assumptions and forecasts made by E.ON Group Management and other information currently available to E.ON. Various known and unknown risks, uncertainties, and other factors could lead to material differences between the actual future results, financial situation, development or performance of the company and the estimates given here. E.ON SE does not intend, and does not assume any liability whatsoever, to update these forward-looking statements or to conform them to future events or developments.