---
title: "SMA Solar STP 15000TL-30 vs Sungrow SG15KTL-M - Inverter Comparison | ComparePV"
description: "Compare SMA Solar STP 15000TL-30 vs Sungrow SG15KTL-M side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/sma-solar-stp-15000tl-30/sungrow-sg15ktl-m"
updated: 2026-01-16
---

# SMA Solar STP 15000TL-30 vs Sungrow SG15KTL-M

SG15KTL-M leads on the differences that matter

The largest is max dc voltage: 100 V apart. 9 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [SMA Solar STP 15000TL-30](https://comparepv.com/inverter/sma-solar-stp-15000tl-30) | [Sungrow SG15KTL-M](https://comparepv.com/inverter/sungrow-sg15ktl-m) |
| Manufacturer | SMA Solar | Sungrow |
| Rated AC power | 15 kW | 15 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | STP 15000TL-30 | SG15KTL-M | Difference |
| --- | --- | --- | --- |
| Max DC voltage | 1000 V | 1100 V | 100 V apart |
| Max input current per tracker | 33.0 A | 22.0 A | +11.0 A for STP 15000TL-30 |
| Weight | 61.0 kg | 24.0 kg | -37.0 kg for SG15KTL-M |
| Weight per kW | 4.1 kg/kW | 1.6 kg/kW | -2.5 kg/kW for SG15KTL-M |
| European efficiency | 98.0 % | 98.3 % | +0.3 pp for SG15KTL-M |
| Max AC current | 29.0 A | 24.0 A | 5.0 A apart |
| Start voltage | 188 V | 250 V | -62 V for STP 15000TL-30 |
| Max efficiency | 98.4 % | 98.6 % | +0.2 pp for SG15KTL-M |
| MPPT voltage range | 240-800 V | 200-1000 V | 240-800 V vs 200-1000 V |
| Strings per tracker | 3 | 2 | 1 string apart |
| Dimensions | 682x661x264 mm | 485x370x210 mm | 682x661x264 mm vs 485x370x210 mm |


## Every compared parameter


| Parameter | STP 15000TL-30 | SG15KTL-M |
| --- | --- | --- |
| Rated AC power | 15.00 kW | 15.00 kW |
| Max AC power | 15.00 kW | 15.00 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 400 V | 400 V |
| Max AC current | 29.0 A | 24.0 A |
| Max PV power | 27.00 kW | - |
| DC/AC ratio | 1.80 | - |
| Max DC voltage | 1000 V | 1100 V |
| MPPT voltage range | 240-800 V | 200-1000 V |
| Start voltage | 188 V | 250 V |
| MPP trackers | 2 | 2 |
| Strings per tracker | 3 | 2 |
| Max input current per tracker | 33.0 A | 22.0 A |
| European efficiency | 98.0 % | 98.3 % |
| Max efficiency | 98.4 % | 98.6 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 61.0 kg | 24.0 kg |
| Weight per kW | 4.1 kg/kW | 1.6 kg/kW |
| Dimensions | 682x661x264 mm | 485x370x210 mm |
| Ingress protection | IP65 | IP65 |
| Cooling | forced-air | forced-air |
| Noise | 51 dB | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | - | - |
| Ethernet | Yes | - |
| Arc fault protection | - | - |
| Integrated DC switch | Yes | Yes |
| Warranty | 5 yrs | - |


## Related comparisons

- [SMA Solar STP 15000TL-30 vs Growatt MID 15KTL3-X](https://comparepv.com/compare-inverters/sma-solar-stp-15000tl-30/growatt-mid-15ktl3-x) - 12 differences, the largest is european efficiency
- [SMA Solar STP 15000TL-30 vs Huawei SUN2000-15KTL-M2](https://comparepv.com/compare-inverters/sma-solar-stp-15000tl-30/huawei-sun2000-15ktl-m2) - 15 differences, the largest is max dc voltage
- [SMA Solar STP 15000TL-30 vs Huawei SUN2000-15KTL-M0](https://comparepv.com/compare-inverters/sma-solar-stp-15000tl-30/huawei-sun2000-15ktl-m0) - 13 differences, the largest is max dc voltage
- [Sungrow SG15KTL-M vs Growatt MOD 15KTL3-X](https://comparepv.com/compare-inverters/sungrow-sg15ktl-m/growatt-mod-15ktl3-x) - 9 differences, the largest is max input current per tracker


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Source: https://comparepv.com/compare-inverters/sma-solar-stp-15000tl-30/sungrow-sg15ktl-m

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