InvertersSolaX X1-IES
3–8 kW · best for solar, battery and backup in one system
4.4 out of 5 from 431 owner reviews of SolaX inverters
- Type
- All-in-one
- Phase
- Single phase
- Efficiency
- 97.6%
Why it scores 8.6.
Each part comes from the datasheet with a published rule; anything not stated scores zero.
How we rate invertersEfficiency
5.3 · 30%
Every point of efficiency is solar you keep, every day for 10+ years.
Rule: Maximum efficiency on the datasheet: 96% scores 0, 99% scores 10.
MPPTs for split roofs
10.0 · 20%
Each MPPT runs one roof face independently, so east and west panels don't drag each other down.
Rule: Number of MPPT trackers: 1 scores 0, 2 scores 5, 3 or more scores 10.
Heat tolerance
10.0 · 20%
Inverters on hot walls throttle or fail early. A higher operating limit means more headroom.
Rule: Highest operating temperature: 45°C scores 0, 60°C scores 10.
Room for more panels
10.0 · 15%
How much panel capacity the inverter accepts, so you can oversize for winter and cloudy days.
Rule: Maximum PV input divided by rated AC output: 1.2x scores 0, 1.5x or more scores 10. Rebate rules allow panels up to 133% of the inverter, so more than 150% adds little.
Weather sealing
10.0 · 15%
Most Australian inverters live outdoors.
Rule: IP66 or better scores 10, IP65 9, IP55 4, lower 0.
Full specifications.
6 approved models · Australian datasheet
- Sizes
- 3–8 kW
- Type
- All-in-one
- Phase
- Single phase
- Takes a battery
- Yes
- Maximum efficiency
- 97.6%
- European weighted efficiency
- 97%
- Panel headroom (max PV ÷ rated AC)
- 200%
- MPPT trackers
- 3
- Backup output
- 3000 VA
- IP rating
- IP66
- Highest operating temperature
- 60°C
- Cooling
- Natural cooling
- Weight
- 26.4 kg
- Compatible batteries
- SolaX TBMS-MCS0800E BMS + TP-HS50E battery modules (LFP, 5.1 kWh / 50 Ah each)
About the brand
SolaX inverters
Strong specs, a long local presence and a clean recall record for its own inverters. Installers don't often pick it for themselves, but there's little to fault on paper.
Read the SolaX reviewBrand rating#3 of 9 brands for inverters
Compare before you choose.
Other SolaX series
SolaXX1-Smart G25–10 kW9.2
SolaXX3-Hybrid G4 Pro4–15 kW9.0
SolaXX3-Ultra15–30 kW9.0
SolaXX1-VAST5–10 kW8.6
Top-rated from other brands
GoodWeSDT G35–29.99 kW9.7
SigenergySigen Hybrid TP / SigenStor EC TP5–30 kW9.4
SigenergySigenStor5–30 kW9.4
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