---
title: "Sungrow SG8.0RT-20 vs Sungrow SG8.0RT-P2 - Inverter Comparison | ComparePV"
description: "Compare Sungrow SG8.0RT-20 vs Sungrow SG8.0RT-P2 side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/sungrow-sg8-0rt-20/sungrow-sg8-0rt-p2"
updated: 2026-01-16
---

# Sungrow SG8.0RT-20 vs Sungrow SG8.0RT-P2

5 differences, and they point both ways

The largest is max input current per tracker: 7.0 A more headroom. 15 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 | [Sungrow SG8.0RT-20](https://comparepv.com/inverter/sungrow-sg8-0rt-20) | [Sungrow SG8.0RT-P2](https://comparepv.com/inverter/sungrow-sg8-0rt-p2) |
| Manufacturer | Sungrow | Sungrow |
| Rated AC power | 8 kW | 8 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | SG8.0RT-20 | SG8.0RT-P2 | Difference |
| --- | --- | --- | --- |
| Max input current per tracker | 25.0 A | 32.0 A | +7.0 A for SG8.0RT-P2 |
| European efficiency | 98.0 % | 97.7 % | +0.3 pp for SG8.0RT-20 |
| Weight | 17.0 kg | 18.0 kg | -1.0 kg for SG8.0RT-20 |
| Max efficiency | 98.5 % | 98.3 % | +0.2 pp for SG8.0RT-20 |
| Cooling | forced-air | natural | forced-air vs natural |


## Every compared parameter


| Parameter | SG8.0RT-20 | SG8.0RT-P2 |
| --- | --- | --- |
| Rated AC power | 8.00 kW | 8.00 kW |
| Max AC power | 8.00 kW | 8.00 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 400 V | 400 V |
| Max AC current | 13.3 A | 13.3 A |
| Max PV power | - | 12.00 kW |
| DC/AC ratio | - | 1.50 |
| Max DC voltage | 1100 V | 1100 V |
| MPPT voltage range | 160-1000 V | 160-1000 V |
| Start voltage | 180 V | 180 V |
| MPP trackers | 2 | 2 |
| Strings per tracker | 1 | 1 |
| Max input current per tracker | 25.0 A | 32.0 A |
| European efficiency | 98.0 % | 97.7 % |
| Max efficiency | 98.5 % | 98.3 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 17.0 kg | 18.0 kg |
| Weight per kW | 2.1 kg/kW | 2.2 kg/kW |
| Dimensions | 480x370x195 mm | 480x370x195 mm |
| Ingress protection | IP65 | IP65 |
| Cooling | forced-air | natural |
| Noise | - | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | - | Yes |
| Ethernet | - | Yes |
| Arc fault protection | - | Yes |
| Integrated DC switch | Yes | Yes |
| Warranty | - | - |


## Related comparisons

- [Sungrow SG8.0RT-20 vs Growatt MOD 8000TL3-X](https://comparepv.com/compare-inverters/sungrow-sg8-0rt-20/growatt-mod-8000tl3-x) - 8 differences, the largest is max input current per tracker
- [Sungrow SG8.0RT-20 vs Growatt MOD 8KTL3-X2(Pro)](https://comparepv.com/compare-inverters/sungrow-sg8-0rt-20/growatt-mod-8ktl3-x2-pro) - 8 differences, the largest is max input current per tracker
- [Sungrow SG8.0RT-20 vs GoodWe GW8000-DT](https://comparepv.com/compare-inverters/sungrow-sg8-0rt-20/goodwe-gw8000-dt) - 6 differences, the largest is max dc voltage


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Source: https://comparepv.com/compare-inverters/sungrow-sg8-0rt-20/sungrow-sg8-0rt-p2

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