A single-number ranking hides what is being optimised. Here there are two axes at a time, and the question «which are the best» is answered by those nobody beats on both measures.
On Cost per kWh, further left is better; on Nominal capacity, higher up. The coloured corner, “best zone”, is where both measures are good.
Filled in are the 2 products that no other beats on both measures. They are not «the best»: they are the ones nobody dominates.
Striped, paler points have at least one of the two measures without a verified source.
7 sheets are missing, because they do not state both measures.
| Product | Cost per kWh · €/kWh | Nominal capacity · kWh | Verified |
|---|---|---|---|
| Marstek Jupiter C Plus | 233.98 | 2.56 | Yes |
| Jackery SolarVault 3 Pro Max | 287.70 | 2.52 | Partly |
| Zendure SolarFlow 2400 AC+ | 302.08 | 2.40 | Partly |
| Anker SOLIX Solarbank 4 E5000 Pro | 318.47 | 5.02 | Partly |
| Jackery HomePower 2000 Ultra | 354 | 2.05 | Partly |
| Zendure SolarFlow 1600 AC+ | 377.60 | 1.92 | Partly |
| EcoFlow STREAM 5000 | 377.99 | 5.02 | Yes |
| EcoFlow STREAM Ultra X | 468.49 | 3.84 | Yes |
| BLUETTI Balco 260 | 546.48 | 2.56 | Yes |
| Anker SOLIX Solarbank 3 E2700 Pro | 594.87 | 2.69 | Yes |
| EcoFlow STREAM Pro | 624.48 | 1.92 | Yes |
| EcoFlow STREAM Ultra | 676.56 | 1.92 | Yes |
| Anker SOLIX Solarbank 2 E1600 AC | 686.88 | 1.60 | Yes |
| Anker SOLIX Solarbank 2 E1600 Pro | 749.38 | 1.60 | Yes |
On Cost of stored energy, further left is better; on Battery life cycles, higher up. The coloured corner, “best zone”, is where both measures are good.
Filled in is the 1 product that no other beats on both measures. It is not «the best»: it is the one nobody dominates.
Striped, paler points have at least one of the two measures without a verified source.
7 sheets are missing, because they do not state both measures.
| Product | Cost of stored energy · €/kWh | Battery life cycles · cicli | Verified |
|---|---|---|---|
| Zendure SolarFlow 2400 AC+ | 0.05 | 6000 | No |
| Zendure SolarFlow 1600 AC+ | 0.06 | 6000 | No |
| Marstek Jupiter C Plus | 0.06 | 3650 | No |
| Jackery SolarVault 3 Pro Max | 0.08 | 3650 | No |
| Anker SOLIX Solarbank 4 E5000 Pro | 0.09 | 3650 | No |
| Jackery HomePower 2000 Ultra | 0.10 | 3650 | No |
| EcoFlow STREAM 5000 | 0.10 | 3650 | No |
| EcoFlow STREAM Ultra X | 0.13 | 3650 | No |
| BLUETTI Balco 260 | 0.15 | 3650 | No |
| Anker SOLIX Solarbank 3 E2700 Pro | 0.16 | 3650 | No |
| EcoFlow STREAM Pro | 0.17 | 3650 | No |
| EcoFlow STREAM Ultra | 0.19 | 3650 | No |
| Anker SOLIX Solarbank 2 E1600 AC | 0.19 | 3650 | No |
| Anker SOLIX Solarbank 2 E1600 Pro | 0.21 | 3650 | No |
