---
title: "Growatt MAX 150KTL3-X LV vs SMA Solar Sunny Highpower Storage SHPS 150-21 - Inverter Comparison | ComparePV"
description: "Compare Growatt MAX 150KTL3-X LV vs SMA Solar Sunny Highpower Storage SHPS 150-21 side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/growatt-max-150ktl3-x-lv/sma-solar-sunny-highpower-storage-shps-150-21"
updated: 2026-01-16
---

# Growatt MAX 150KTL3-X LV vs SMA Solar Sunny Highpower Storage SHPS 150-21

Sunny Highpower Storage SHPS 150-21 leads on the differences that matter

The largest is max dc voltage: 400 V apart. 7 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 | [Growatt MAX 150KTL3-X LV](https://comparepv.com/inverter/growatt-max-150ktl3-x-lv) | [SMA Solar Sunny Highpower Storage SHPS 150-21](https://comparepv.com/inverter/sma-solar-sunny-highpower-storage-shps-150-21) |
| Manufacturer | Growatt | SMA Solar |
| Rated AC power | 150 kW | 150 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | MAX 150KTL3-X LV | Sunny Highpower Storage SHPS 150-21 | Difference |
| --- | --- | --- | --- |
| Max DC voltage | 1100 V | 1500 V | 400 V apart |
| European efficiency | 98.4 % | 98.8 % | +0.4 pp for Sunny Highpower Storage SHPS 150-21 |
| Weight | 93.0 kg | 99.0 kg | -6.0 kg for MAX 150KTL3-X LV |
| Max efficiency | 98.8 % | 99.1 % | +0.3 pp for Sunny Highpower Storage SHPS 150-21 |
| Max AC current | 250.7 A | 151.0 A | 99.7 A apart |
| Ingress protection | IP66 | IP65 | IP66 vs IP65 |
| Dimensions | 640x1075x367 mm | 830x770x462 mm | 640x1075x367 mm vs 830x770x462 mm |


## Every compared parameter


| Parameter | MAX 150KTL3-X LV | Sunny Highpower Storage SHPS 150-21 |
| --- | --- | --- |
| Rated AC power | 150.00 kW | 150.00 kW |
| Max AC power | 150.00 kW | 150.00 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 400 V | - |
| Max AC current | 250.7 A | 151.0 A |
| Max PV power | 225.00 kW | - |
| DC/AC ratio | 1.50 | - |
| Max DC voltage | 1100 V | 1500 V |
| MPPT voltage range | 180-1000 V | - |
| Start voltage | 195 V | - |
| MPP trackers | 10 | - |
| Strings per tracker | - | - |
| Max input current per tracker | 45.0 A | - |
| European efficiency | 98.4 % | 98.8 % |
| Max efficiency | 98.8 % | 99.1 % |
| CEC efficiency | - | - |
| Battery input | - | Yes |
| Battery voltage | - | See per-model DC battery voltage range (590-1500 V; 880-1500 V; 968-1500 V; 1012-1500 V) |
| Max charge current | - | 180 A |
| Backup power | - | - |
| Weight | 93.0 kg | 99.0 kg |
| Weight per kW | 0.6 kg/kW | 0.7 kg/kW |
| Dimensions | 640x1075x367 mm | 830x770x462 mm |
| Ingress protection | IP66 | IP65 |
| 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 | 5 yrs |


## Related comparisons

- [Growatt MAX 150KTL3-X LV vs SMA Solar Sunny Highpower PEAK3 SHP 150-21](https://comparepv.com/compare-inverters/growatt-max-150ktl3-x-lv/sma-solar-sunny-highpower-peak3-shp-150-21) - 11 differences, the largest is mpp trackers
- [Growatt MAX 150KTL3-X LV vs Ginlong Solis S6-GC3P150K07-NV-ND](https://comparepv.com/compare-inverters/growatt-max-150ktl3-x-lv/ginlong-solis-s6-gc3p150k07-nv-nd) - 7 differences, the largest is mpp trackers
- [Growatt MAX 150KTL3-X LV vs Sungrow SG150CX](https://comparepv.com/compare-inverters/growatt-max-150ktl3-x-lv/sungrow-sg150cx) - 7 differences, the largest is mpp trackers


---

Source: https://comparepv.com/compare-inverters/growatt-max-150ktl3-x-lv/sma-solar-sunny-highpower-storage-shps-150-21

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