Do you actually need a battery?
A 60-second, honest check. Answer a few questions about your home and your bills and get a clear yes or no, not a sales pitch.
What it does
Three quick questions about your home, your bills and your tolerance for power outages. The full quiz gives you a clear yes or no on whether a battery makes sense for your situation, not a sales pitch.
- Honest verdict: full battery, small battery, or grid-tied only
- Weighs resilience against April 2025's nationwide blackout
- Explains the cost and payback trade-off for each option
Create a free account to use the full Battery Quiz — your answers and results are saved to your dashboard.
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Sample answer
Grid tied may be enough for you
You are home during the day, the grid is reliable where you live, and you want the fastest payback. A grid tied system without battery will self-consume roughly 75 percent of production and pay back in 7 to 9 years. You can always add a battery later when prices fall further.
Answers vary by household — take the real quiz in your free account to get your own recommendation.
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Get your free 2026 solar guide for Northern Portugal
Create a free account to unlock your personal guide and save your tool results to a dashboard. No spam, no installer calls, no obligation.
See what’s inside the guide