Fox ESS H3-9.9-Smart vs SMA Sunny Tripower Smart Energy 10.0
AC power: Fox ESS H3-9.9-Smart 9.9 kW, SMA Sunny Tripower Smart Energy 10.0 10 kW. The SMA Sunny Tripower Smart Energy 10.0 is better on 6 of 13 comparable points.
Who wins where
- Fox ESS H3-9.9-Smart
- SMA Sunny Tripower Smart Energy 10.0
Biggest differences
| Fact | H3-9.9-Smart | Sunny Tripower Smart Energy 10.0 |
|---|---|---|
| MPPT voltage min. | 120 V | 280 V |
| Warranty | 10 years | 5 years |
| MPP trackers | 3 | 2 |
| Noise | 40 dB(A) | 30 dB(A) |
| Max. input current per MPPT | 20 A | 25 A |
| MPPT voltage max. | 950 V | 800 V |
Score per area = position (0–100) relative to all 238 models in this category; higher is better.
| Technical specifications | Fox ESSH3-9.9-Smart | SMASunny Tripower Smart Energy 10.0 |
|---|---|---|
| Performance | ||
| AC power | 9.9 kW 1 | 10 kW ✓ 2 |
| Max. PV array power | – | 15 kWp 2 |
| MPP trackers | 3 ✓ 1 | 2 2 |
| Efficiency | ||
| Max. efficiency | 97.9 % 1 | 98.1 % ✓ 2 |
| European efficiency | 97.2 % 1 | 97.5 % ✓ 2 |
| Noise | ||
| Noise | 40 dB(A) 1 | 30 dB(A) ✓ 2 |
| Electrical | ||
| MPPT voltage min. | 120 V ✓ 1 | 280 V 2 |
| MPPT voltage max. | 950 V ✓ 1 | 800 V 2 |
| Max. input current per MPPT | 20 A 1 | 25 A ✓ 2 |
| Phases | – | 3 2 |
| Connectivity & smart | ||
| Hybrid (battery-ready) | Yes 1 | Yes 2 |
| Backup power | Yes 1 | Yes 2 |
| Wi-Fi / monitoring | Yes 1 | Yes 2 |
| Dimensions & weight | ||
| IP rating | IP65 1 | IP65 2 |
| Width | 600 mm 1 | 500 mm 2 |
| Height | 450 mm 1 | 598 mm 2 |
| Depth | 226 mm 1 | 173 mm 2 |
| Weight | 34 kg 1 | 30 kg ✓ 2 |
| Warranty & lifespan | ||
| Warranty | 10 years ✓ 1 | 5 years 2 |
Sources
- H3 Smart THREE-PHASE HYBRID INVERTER, V1.2 | 2025/07/02 — Fox ESS · accessed 29 Sept 2026
- Sunny Tripower 5.0 / 6.0 / 8.0 / 10.0 Smart Energy – datasheet, STPxx-3SE-40-DS-en-22 (status 07/2025) — SMA Solar Technology AG · accessed 27 Sept 2026