In the early days a grid-connected solar inverter had one job, to convert solar generated DC energy into useable AC electrical energy. Today, the expectations of one single device are much more. The new release Huawei SUN2000L solar inverter range has arrived and is now making an effort to define itself as an innovative option for those seeking greater value in a solar energy system


Make and model:  Huawei SUN2000L.

Variants: 2 | 3 | 4 | 4.6 | 5.

Good: Innovative design, LG Chem Battery Compatibility.

Not so good: Software, Installer network.

What can the Huawei SUN2000L range of solar inverters do which most mainstream solar inverters can’t? Considerably more. However, depending on what you may expect from what you’ve heard about the extra features, prepare for a mild level of disappointment.

As with every inverter technology available the Solar Review Inverter Assessment Criteria considers the six key elements in many end-users selection process. Design, features, performance, guarantee, software and the overall affordability of the technology at hand. Is the Huawei SUN2000L solar inverter the right solution for your energy production needs?


Reddot design awarded 2017, Huawei has unquestionably developed one of the most innovative solar inverter designs in recent years. Contained within a minimalist exterior are features unmatched by previous leading solar inverter models in the same category.

Designed with an end-users energy future in mind the Huawei SUN2000L inverter is built to integrate with a superior solar battery option in the form of the LG Chem RESUH range. Potentially the most disappointing element though for anyone anticipating battery connectivity, there is no emergency power supply feature in the event of a grid failure. As an often added expense in any form, one must consider how much the grid is likely to fail to make or break the argument.

Beyond battery connectivity, a less copper fan-less internal construction ensures Huawei SUN2000L solar inverters are virtually maintenance free with no moving parts. The corrosion resistant, aluminium, external housing protects the internal componentry from dust and water elements with an IP65 protection rating. Overall revolutionary, whether you like Huawei or not, most agree this design is set to change consumer expectation of what a solar inverter should do.

Huawei SUN2000L data sheet >

Huawei Sun2000L Inverter - Solar Review


SUN2000L - Design
  • Hybrid (Multimode) with EPS.
  • New release.
  • Fanless.
  • Internationally recognised award system.
  • TÜV Reihnland certified.
  • Innovative.
  • IP 65.


As covered above, the Huawei SUN2000L is equipped with a DC coupled, high voltage battery interface for the LG Chem RESU HV solar battery range. Additionally, should an end-user decide to incorporate module-level optimisation immediately or in the future, Huawei have an optimiser technology to work with the Huawei SUN2000L solar inverter. Tripling up Huawei’s optimiser technology can act as a rapid shutdown feature (if required) or a module-level monitoring device for advanced system management.

Internally integrated (AC & DC) surge arrestors aid protection from voltage variables. As a dual tracking inverter, the in-built DC isolator switch is a bonus for certain parts of the world.  Combined with a new way, multifunctional LED only, end-user signalling interface, full energy visualisation is achieved through the Huawei FusionHome software. To aid communication inputs exist for both Ethernet, 4G (big bonus) and WiFi internet communication. One element lacking in the features department is installer support for the end-user with only general remote data configuration available.

Huawei Sun2000L Inverter - Solar Review


SUN2000L - Features.
  • 2 MPPTS.
  • Modern LED & Local App connectivity (no internet required).
  • WiFi & Ethernet (plus 4G optional).
  • Manufacturer supplied module-level optimisation options.
  • Manufacturer supplied module-level rapid shutdown options.
  • Manufacturer supplied expanded monitoring options.
  • MPPT only shadow management.
  • Installer remote access support is rated at - general data configuration.


Huawei has developed a world first, patented 5-level topology ensuring less copper and therefore states fewer losses.  With this in mind, the Huawei SUN2000L solar inverter range is still not the most efficient available although it is very close with a maximum efficiency of 98.6% (98% European weighted efficiency).

-30°C to 60°C is a broad operating temperature range derating only after 50°C, unlike the 40°C derating mark of respected alternative models in its class, the Huawei SUN2000L is a surprising performer for diverse environments. A continuation of the surprising performance features includes an outstanding weight class of a mere 10.4kG and a noise emission rating of less than 25 dB(A).

Huawei Sun2000L Inverter - Solar Review


SUN2000L - Performance
  • 98% European efficiency.
  • Temperature range of -30°C (-22°F).
  • Temperature range of +60°C (140°F).
  • Temperature derating of 50°C (122°F).
  • Weighs 10.2 kg (22.4lbs).
  • Noise emission of 25 dB (A).


A secure warranty for a designated period is what every end-user expects. Solar inverter manufacturers appear to be skewing warranties slightly when stating 10-years. What is in fact on offer is a 5 + 5-year warranty. Layering like an onion, the Huawei SUN2000L solar inverter series has this same warranty, but fortunately without additional activation requirements after installation. Understand that the first 60-months (5-yrs) in the event of a warranty claim, Huawei covers the cost of spare parts, logistics and replacement. The final 60-months (5-yrs) Huawei provides the part only, and the manufacturer’s warranty does not cover logistics and service.

Although a layered 10-yr warranty, there is a big advantage about the Huawei 5 + 5-yr warranty of alternative inverter make 5 + 5-year warranty offers. Not required after installation is the additional warranty extension activation. Potentially the big downside of the Huawei SUN2000L solar inverter guarantee is that no manufacturer trained installer network exists assure consumer confidence the product is installed to manufacturer guidelines.

Huawei Sun2000L Inverter - Solar Review


SUN2000L - Guarantee
  • 10-year parts warranty.
  • 5-year service warranty.
  • No authorised installer network.


Onboarding, user experience and technical information could be a lot better. Although displaying essential energy generation information, this is potentially one of the more lacklustre monitoring portals a user is likely to experience. Software design for hardware manufacturers such as Huawei is always secondary to the product.  See the full Huawei FusionHome monitoring software review for more insight > (Coming Soon).


SUN2000L - Software
  • Huawei FusionHome monitoring software.
  • iOS & Android app.
  • Alerts & fault diagnosis.


Considering the Huawei SUN2000L solar inverter is a multi-mode (Hybrid) solar inverter, for the technology available, the Huawei SUN2000L solar inverter represents almost outstanding value for money.

As a gauge, Huawei SUN2000L solar inverters are available online from: 

USD 1300  |  AUD 1800  |  EURO 1150 

Excludes taxes, shipping and installation.

Source – Google.

Huawei Sun2000L Inverter - Solar Review


SUN2000L - Affordability
  • Superior technology score.
  • 5kW approx for $1300 USD ex.


Certain solar panel array design limitations are present when looking to pair the Huawei SUN2000L with the LG Chem RESUH solar battery. Additionally, despite the inclusion of a high voltage battery input terminal, Huawei SUN2000L solar inverters do not provide a backup power supply from the battery in the event of a power failure. If backup power and the rare solar array design limitation are a non-issue, understand that Huawei has produced a technically superior and innovative solar inverter technology many competitors in 2019 will seek to compete with. 


SUN2000L - Overall
  • Design 4.4
  • Features 4.4
  • Performance 4.4
  • Guarantee 3.2
  • Software 3.5
  • Technology 4.0
  • Affordability 4.0

Have a question?

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How was the score for the Huawei SUN2000L calculated? By utilising the Solar Review Inverter Assessment Criteria V2.3 >



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