---
title: "SMA Solar Sunny Highpower PEAK3 SHP 100-21 vs Sungrow SG100CX - Inverter Comparison | ComparePV"
description: "Compare SMA Solar Sunny Highpower PEAK3 SHP 100-21 vs Sungrow SG100CX side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/sma-solar-sunny-highpower-peak3-shp-100-21/sungrow-sg100cx"
updated: 2026-01-16
---

# SMA Solar Sunny Highpower PEAK3 SHP 100-21 vs Sungrow SG100CX

SG100CX leads on the differences that matter

The largest is mpp trackers: 8 trackers more. 6 of 14 comparable parameters are identical, with 18 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [SMA Solar Sunny Highpower PEAK3 SHP 100-21](https://comparepv.com/inverter/sma-solar-sunny-highpower-peak3-shp-100-21) | [Sungrow SG100CX](https://comparepv.com/inverter/sungrow-sg100cx) |
| Manufacturer | SMA Solar | Sungrow |
| Rated AC power | 100 kW | 100 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

Ranked by how much the difference matters, not by datasheet order.


| Parameter | Sunny Highpower PEAK3 SHP 100-21 | SG100CX | Difference |
| --- | --- | --- | --- |
| MPP trackers | 1 | 9 | +8 trackers for SG100CX |
| Max DC voltage | 1500 V | 1100 V | 400 V apart |
| Max input current per tracker | 180.0 A | 26.0 A | +154.0 A for Sunny Highpower PEAK3 SHP 100-21 |
| Max AC power | 100.00 kW | 110.00 kW | 10.00 kW apart |
| Weight | 99.0 kg | 89.0 kg | -10.0 kg for SG100CX |
| Max AC current | 151.0 A | 158.8 A | 7.8 A apart |
| Ingress protection | IP65 | IP66 | IP65 vs IP66 |
| Dimensions | 830x770x462 mm | 660x1051x362 mm | 830x770x462 mm vs 660x1051x362 mm |


## Every compared parameter


| Parameter | Sunny Highpower PEAK3 SHP 100-21 | SG100CX |
| --- | --- | --- |
| Rated AC power | 100.00 kW | 100.00 kW |
| Max AC power | 100.00 kW | 110.00 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | - | 400 V |
| Max AC current | 151.0 A | 158.8 A |
| Max PV power | 200.00 kW | - |
| DC/AC ratio | 2.00 | - |
| Max DC voltage | 1500 V | 1100 V |
| MPPT voltage range | - | 200-1000 V |
| Start voltage | - | 250 V |
| MPP trackers | 1 | 9 |
| Strings per tracker | - | 2 |
| Max input current per tracker | 180.0 A | 26.0 A |
| European efficiency | 98.5 % | - |
| Max efficiency | 98.8 % | 98.7 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 99.0 kg | 89.0 kg |
| Weight per kW | 1.0 kg/kW | 0.9 kg/kW |
| Dimensions | 830x770x462 mm | 660x1051x362 mm |
| Ingress protection | IP65 | IP66 |
| Cooling | forced-air | forced-air |
| Noise | 69 dB | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | - | Yes |
| Ethernet | Yes | - |
| Arc fault protection | - | - |
| Integrated DC switch | - | Yes |
| Warranty | 5 yrs | - |


## Related comparisons

- [SMA Solar Sunny Highpower PEAK3 SHP 100-21 vs Huawei SUN2000-100KTL-M2](https://comparepv.com/compare-inverters/sma-solar-sunny-highpower-peak3-shp-100-21/huawei-sun2000-100ktl-m2) - 8 differences, the largest is mpp trackers
- [SMA Solar Sunny Highpower PEAK3 SHP 100-21 vs Huawei SUN2000-100KTL-M1 (@480 V)](https://comparepv.com/compare-inverters/sma-solar-sunny-highpower-peak3-shp-100-21/huawei-sun2000-100ktl-m1-480-v) - 8 differences, the largest is mpp trackers
- [SMA Solar Sunny Highpower PEAK3 SHP 100-21 vs Sungrow SG110CX](https://comparepv.com/compare-inverters/sma-solar-sunny-highpower-peak3-shp-100-21/sungrow-sg110cx) - 8 differences, the largest is mpp trackers


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Source: https://comparepv.com/compare-inverters/sma-solar-sunny-highpower-peak3-shp-100-21/sungrow-sg100cx

Not in this file, on the page: a written summary generated on request.