German-engineered sonnenBatterie systems, known for their long warranty and history of building Virtual Power Plant programs around the battery.
Sonnen at a glance
| Known for | German-engineered sonnenBatterie systems, known for their long warranty and history of building Virtual Power Plant programs around the battery. |
| Typical capacity | Roughly 9.5 kWh to 20 kWh per unit, with larger multi-unit systems available |
| Popular models | sonnenBatterie Evo, sonnenBatterie hybrid |
| Rebates | Federal discount + your state incentive |
Why people choose Sonnen
- Long, well-regarded warranty by industry standards, often 15 years.
- Strong Virtual Power Plant heritage, among the earliest brands to build a VPP program around its batteries.
- German engineering and build quality, at a premium price point.
- Eligible for the federal battery discount and most state incentives.
Sonnen cost after rebates
The headline price matters less than the after-rebate price. The federal Cheaper Home Batteries discount takes roughly 30% off an eligible Sonnen battery, and your state incentive is separate, where one applies. For a full breakdown by size, see how much a solar battery costs, or get your number instantly with the savings calculator.
Is Sonnen the right brand for you?
There is no single best battery, only the best fit for your home. If you want to compare Sonnen against the other leading options, see how to choose the best solar battery. When you are ready, we match you with one accredited installer who fits the right brand to your needs.