Photo from the manufacturer
JouleSpecs does not sell and does not show shop prices: check the price where you buy.
The E3/DC one is a storage system with integrated AI 360° energy management, no subscription and free software updates. It has three independent solar trackers, allowing the photovoltaic system to be designed flexibly. If the grid fails, it switches to three-phase emergency power in less than 20 ms. Capacity reaches 11.8 kWh and can be extended to 15 kWh: expansion remains possible for 5 years. The system warranty is 10 years. It pairs with a bidirectional wallbox: the vehicle can power the house and the heat pump.
| Parameter | Value | Source |
|---|---|---|
| Expandable | Yes | Compiled by editorial team |
| Maximum expanded capacity | 15 kWh | Compiled by editorial team |
| Maximum charge power | 12 kW | Compiled by editorial team |
| Backup power | Full island mode | Compiled by editorial team |
| Backup phases | Three-phase | Compiled by editorial team |
| EV charger integration | Yes | Compiled by editorial team |
| Warranty | 10 anni | Compiled by editorial team |
These numbers are calculated, not stated: they have no source to cite, they have a formula you can redo. The price used is the manufacturer's list price, which is stable and the same in every country — not a shop's price on the day.
