---
title: "Fronius Eco 27.0-3-S vs Growatt MID 25KTL3-X2 (Pro.E) - Inverter Comparison | ComparePV"
description: "Compare Fronius Eco 27.0-3-S vs Growatt MID 25KTL3-X2 (Pro.E) side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/fronius-international-fronius-eco-27-0-3-s/growatt-mid-25ktl3-x2-pro-e"
updated: 2026-01-16
---

# Fronius Eco 27.0-3-S vs Growatt MID 25KTL3-X2 (Pro.E)

MID 25KTL3-X2 (Pro.E) leads on the differences that matter

The largest is rated ac power: 2.00 kW apart. 7 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 | [Fronius Eco 27.0-3-S](https://comparepv.com/inverter/fronius-international-fronius-eco-27-0-3-s) | [Growatt MID 25KTL3-X2 (Pro.E)](https://comparepv.com/inverter/growatt-mid-25ktl3-x2-pro-e) |
| Manufacturer | Fronius International | Growatt |
| Rated AC power | 27 kW | 25 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | Fronius Eco 27.0-3-S | MID 25KTL3-X2 (Pro.E) | Difference |
| --- | --- | --- | --- |
| Rated AC power | 27.00 kW | 25.00 kW | 2.00 kW apart |
| European efficiency | 98.0 % | 98.6 % | +0.6 pp for MID 25KTL3-X2 (Pro.E) |
| Max DC voltage | 1000 V | 1100 V | 100 V apart |
| Max AC power | 27.00 kW | 27.70 kW | 0.70 kW apart |
| MPP trackers | 1 | 3 | +2 trackers for MID 25KTL3-X2 (Pro.E) |
| Weight | 35.7 kg | 24.0 kg | -11.7 kg for MID 25KTL3-X2 (Pro.E) |
| Max efficiency | 98.3 % | 98.8 % | +0.5 pp for MID 25KTL3-X2 (Pro.E) |
| Max PV power | 37.80 kW | 37.50 kW | 0.30 kW apart |
| DC/AC ratio | 1.40 | 1.50 | +0.10 for MID 25KTL3-X2 (Pro.E) |
| Start voltage | 650 V | 200 V | -450 V for MID 25KTL3-X2 (Pro.E) |
| Weight per kW | 1.3 kg/kW | 1.0 kg/kW | -0.4 kg/kW for MID 25KTL3-X2 (Pro.E) |
| MPPT voltage range | 580-850 V | 200-1000 V | 580-850 V vs 200-1000 V |
| Dimensions | 725x510x225 mm | 415x528x225 mm | 725x510x225 mm vs 415x528x225 mm |


## Every compared parameter


| Parameter | Fronius Eco 27.0-3-S | MID 25KTL3-X2 (Pro.E) |
| --- | --- | --- |
| Rated AC power | 27.00 kW | 25.00 kW |
| Max AC power | 27.00 kW | 27.70 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 400 V | 400 V |
| Max AC current | - | 42.0 A |
| Max PV power | 37.80 kW | 37.50 kW |
| DC/AC ratio | 1.40 | 1.50 |
| Max DC voltage | 1000 V | 1100 V |
| MPPT voltage range | 580-850 V | 200-1000 V |
| Start voltage | 650 V | 200 V |
| MPP trackers | 1 | 3 |
| Strings per tracker | 6 | - |
| Max input current per tracker | - | 40.0 A |
| European efficiency | 98.0 % | 98.6 % |
| Max efficiency | 98.3 % | 98.8 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 35.7 kg | 24.0 kg |
| Weight per kW | 1.3 kg/kW | 1.0 kg/kW |
| Dimensions | 725x510x225 mm | 415x528x225 mm |
| Ingress protection | IP66 | IP66 |
| Cooling | forced-air | forced-air |
| Noise | - | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | Yes |
| Ethernet | Yes | - |
| Arc fault protection | - | - |
| Integrated DC switch | Yes | Yes |
| Warranty | - | 5 yrs |


## Related comparisons

- [Fronius Eco 27.0-3-S vs Fronius Verto 27.0](https://comparepv.com/compare-inverters/fronius-international-fronius-eco-27-0-3-s/fronius-international-fronius-verto-27-0) - 11 differences, the largest is mpp trackers
- [Fronius Eco 27.0-3-S vs SolarEdge SE27.6K (Three Phase)](https://comparepv.com/compare-inverters/fronius-international-fronius-eco-27-0-3-s/solaredge-solaredge-se27-6k-three-phase) - 8 differences, the largest is rated ac power
- [Fronius Eco 27.0-3-S vs SolarEdge SE27.6K](https://comparepv.com/compare-inverters/fronius-international-fronius-eco-27-0-3-s/solaredge-se27-6k) - 8 differences, the largest is rated ac power
- [Growatt MID 25KTL3-X2 (Pro.E) vs Growatt MID 25KTL3-X](https://comparepv.com/compare-inverters/growatt-mid-25ktl3-x2-pro-e/growatt-mid-25ktl3-x) - 6 differences, the largest is start voltage
- [Growatt MID 25KTL3-X2 (Pro.E) vs Growatt MID 25KTL3-X1](https://comparepv.com/compare-inverters/growatt-mid-25ktl3-x2-pro-e/growatt-mid-25ktl3-x1) - 5 differences, the largest is max input current per tracker
- [Growatt MID 25KTL3-X2 (Pro.E) vs GoodWe GW25K-MT](https://comparepv.com/compare-inverters/growatt-mid-25ktl3-x2-pro-e/goodwe-gw25k-mt) - 10 differences, the largest is max input current per tracker


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Source: https://comparepv.com/compare-inverters/fronius-international-fronius-eco-27-0-3-s/growatt-mid-25ktl3-x2-pro-e

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