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Enwall solid state home battery: price and review
Storing solar energy efficiently and safely is possible with the Enwall solid state battery, which uses graphene-based supercapacitor technology to achieve nearly 99% efficiency and a lifespan far beyond traditional lithium batteries. This innovative energy storage system offers modular capacity from 5 kWh to 20 kWh and supports ultra-fast charging, ensuring higher self-consumption and stable operation even under extreme temperatures.

In this guide by Soleva, you will discover how this technology works, how it compares to lithium alternatives, what the costs are, and the ideal scenarios for its use in residential settings. Read on to learn more about this cutting-edge home battery solution.
What makes the Enwall solid state battery suitable for solar energy storage?
The Enwall solid state battery delivers outstanding performance by relying on electrostatic energy storage rather than chemical reactions. This design allows it to reach up to 500,000 charge cycles and maintain approximately 99% round-trip efficiency, significantly boosting the usable solar energy throughout the day.
It integrates seamlessly with a solar panel system, capturing excess energy produced during daylight hours to be used in the evening. This approach raises self-consumption rates from an average of 30% to as much as 85% in many homes, reducing reliance on the electrical grid.
How does graphene supercapacitor technology operate?
The Enwall supercapacitor stores electricity in an electric field formed between graphene-based electrodes. Graphene provides exceptional conductivity and thermal stability, which prevents chemical degradation common in traditional batteries. As a result, the system maintains consistent performance for decades.
Which performance characteristics define the ENWALL battery?
The main specifications include:
- Efficiency close to 99%
- Cycle life reaching up to 500,000 cycles
- Operating temperature range from -30°C to +65°C
- Charging speeds 5 to 10 times faster than conventional lithium batteries
Why is the safety level higher compared to lithium systems?
The Enwall battery uses no liquid electrolyte, which eliminates the risk of thermal runaway. This removal of flammable liquids prevents fire, explosion, and leakage hazards, making indoor installation safer and more reliable for residential use.
The Enwall solid state battery stands out due to its exceptional durability, safety, and efficiency rather than solely focusing on capacity. Its extremely long cycle life and minimal maintenance needs make it an appealing choice for achieving long-term energy independence. However, its higher initial cost means it is important to evaluate your household’s specific energy consumption carefully.
If you are thinking about purchasing a solid state thuisbatterij, it is advisable to compare several real installation quotes and ensure the capacity aligns with your solar production profile. Through Soleva, you can request multiple offers to find the best solution that fits your home and budget while benefiting from this advanced battery technology.
Frequently Asked Questions
What is the price range for an Enwall solid state battery?
The Enwall solid state battery usually costs between €6,000 and €13,000 including installation, depending on the chosen capacity and system configuration. Larger battery setups or advanced integrations with solar panels and electric vehicle chargers can increase the total investment. Its modular design also allows you to expand capacity progressively over time.
How trustworthy are reviews of the Enwall solid state battery?
Reviews often emphasize the battery’s high efficiency, exceptionally long lifespan, and improved safety features. Many customers appreciate the fast charging capabilities. However, as this technology is relatively new, independent long-term data remains limited, so assessments primarily rely on technical specifications and early user experiences.
What is the typical price per kWh for the ENWALL solid-state battery?
Early market data indicates that the ENWALL solid-state battery price per kWh ranges between €500 and €1,000. This price reflects the use of advanced materials such as graphene and the current limited production scale. As adoption grows, the costs are expected to decrease.
Why are solid-state batteries not yet widely used?
Solid-state batteries face challenges related to scaling up production because manufacturing processes remain complex and expensive. Issues such as material stability and production efficiency need further improvement. Despite their clear advantages, lithium-ion batteries continue to dominate due to their lower costs and established supply chains.
What materials compose a solid state battery like ENWALL?
A solid state battery uses solid materials for both electrodes and electrolytes. In the ENWALL design, graphene electrodes store energy electrostatically. Other solid-state batteries might include materials such as ceramics, polymers, or sulfide electrolytes combined with metal-based anodes.
Indicative prices for the Belgian market, checked in August 2026 against energy-village.be, thuisbatterij.be and zen-zonne-energie.be. These are market ranges for an installed system including VAT, not a quotation: your price depends on capacity, brand and the state of your existing installation.
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