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Huawei SUN2000-20K-MB0
Huawei

SUN2000-20K-MB0

20 kW Hybrid Three-phase Battery-ready
Compare with closest alternative Datasheet PDF
Rated AC (kW)
20.00
Typical for its class
Euro eff. (%)
98.1
Typical · median 98.0%
MPPT
2
Typical · median 2
Max DC (V)
1100
Strong · top 21%
Weight (kg)
21.0
Strong · 14.0 kg below median
Warranty (yrs)
-
Not published

Hybrid inverters in the Huawei SUN2000-MB0 series are three-phase grid-tie inverters with energy storage capability, designed for installations where flexibility in operation with PV and readiness for self-consumption matter. They feature two independent MPPTs, facilitating yield optimization with panels facing different orientations and partial shading - installers can better distribute strings, and users minimize energy losses in challenging conditions. A key advantage is high European efficiency, meaning truly better performance in typical operating conditions in Poland, not just in ideal laboratory settings. The series supports monitoring via FusionSolar - remote viewing of installation operation, alarms, and yield history through the app, with communication options including WiFi, expandable to Ethernet or cellular via a dedicated dongle. The hybrid variant ensures compatibility with LUNA2000 energy storage systems (high-voltage), simplifying system expansion. Additional key features include safety solutions such as arc detection (AFCI) and rapid shutdown, as well as typical certifications for this class and long-term warranty. This is an excellent choice for larger domestic installations and small to medium-sized commercial premises.

Ranking

227 inverters from 12 to 30 kW
Metric This inverter Median Position in class Rank in class
European efficiency 98.1% 98.0% Typical 54
MPPT trackers 2 2 Typical 53
Max DC input voltage 1100 V 1000 V Strong · top 21% 1
Weight per kW 1.1 1.6 Strong · top 15% 33
Warranty - 5 yrs Not published -
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Price offers

5 from shops we track
Shop Country Price Per kW Stock Offer updated
www.alma-solarshop.nl Netherlands 2 279 € incl. VAT 113.95 €/kW In stock yesterday Visit shop
7Sun Poland 11 422.62 zł incl. VAT 571.13 zł/kW In stock yesterday Visit shop
Sklep Soltech Poland 9 325.01 zł net 466.25 zł/kW Not stated 20h ago Visit shop
solardiscount.at Austria 2 727.95 € incl. VAT 136.40 €/kW In stock 9h ago Visit shop
solarboss.ie Ireland 3 690 € incl. VAT 184.50 €/kW In stock 21h ago Visit shop

Specifications

Open datasheet PDF
Rated AC power 20 kW Continuous output
Max AC power 22.00 kW Short-term output above the rating
Max apparent power 22.00 kVA
Phases Three-phase
Nominal AC voltage 400 V
Max AC current 33.6 A
Grid frequency 50 Hz
Power factor 0.8 leading ... 0.8 lagging
Harmonic distortion (THD) 3.0 %
Max DC input power 30.00 kW DC/AC ratio 1.50
Max DC voltage 1100 V Caps the string length
MPPT voltage range 200 to 1000 V
Start-up voltage 200 V
MPPT trackers 2 2 strings each
Max input current per MPPT 30.0 A Must exceed the panel's Imp
Max short-circuit current per MPPT 40.0 A Must exceed the panel's Isc
European efficiency 98.1 % Weighted across part loads
Max efficiency 98.4 % Best single operating point
Battery port Yes
Battery voltage 600 V ~ 980 V
Max charge current 26.2 A
Max discharge current 26.2 A
Dimensions 460 × 546 × 242 mm Height × width × depth
Weight 21.0 kg 1.1 kg per kW
Enclosure IP66
Cooling forced-air
Operating temperature -25 to 60 °C
Max humidity 100 %
Max altitude 4000 m
Interfaces Wi-FiEthernetDisplay
Protocols RS485WLAN (integrated)Ethernet (via Smart Dongle-WLAN-FE, optional)Cellular 4G/3G/2G (via Smart Dongle-4G, optional)EMMA (optional)
Protection AFCIDC switchSurge protection
Certifications EN/IEC62109-1EN/IEC62109-2IEC61727IEC62116IEC61683EN50530ABNT NBR 16149/16150MEA/PEAG99IRR-DCC-MV/IRR-TICPhilippine Grid Code Resolution No. 07NRS 097-2-1EN50549-1VDE4105UTE15-712-1/VFR 2019UNE217002NTS631RD244(UNE217001)PPDSROGATOR ErzeugerCEI 0-21:2020-12 V1CEI-016C10/C11EN50549-2VDE4110

Pros and cons

5 positive · 2 caution
What owners get
98.2% European Efficiency - Ahead of Fronius

The EU weighted efficiency reaches up to 98.2% (peak 98.4%), exceeding the Fronius Symo GEN24 Plus (~98.1%). A difference of 0.1-0.3 percentage points translates in practice to approximately 150-200 kWh of additional annual yield for a 20 kWp system under Polish irradiance conditions.

2 MPPT × 30 A - Flexible String Design

Each of the 2 MPPT trackers supports up to 30 A of DC input current (4 DC inputs in total), enabling lossless connection of high-current modules (e.g., 660 Wp+) and the separation of roof sections with different orientations. The 30 A per MPPT ceiling sets this series apart from competing models capped at 20-25 A.

AFCI - Arc Fault Detection Within 0.5 s

The built-in AFCI function detects and interrupts an arc fault within 0.5 seconds, reducing the risk of a rooftop fire. Rapid Shutdown is standard across the series, satisfying the increasingly enforced fire safety requirements for rooftop PV installations.

10-Year Standard Warranty (Extendable to 20 Years)

The standard 10-year manufacturer's warranty, with optional extension to 15 or 20 years, compares favorably against Fronius, which ships with a 5-year base warranty (extendable to 10). A longer factory warranty reduces operational risk for the investor and simplifies LCOE calculations.

Lower Price Than Tier-1 European Competition

Retail prices in Poland (approx. PLN 8,900 for the 12K-MB0, approx. PLN 11,400 for the 25K-MB0) position the series roughly 10-15% below comparable Fronius and SMA models. The combination of price, performance, and warranty delivers one of the strongest value-for-money propositions in the three-phase hybrid segment above 10 kW.

Trade-offs
Closed Battery Ecosystem

Only the LUNA2000 (HV) battery is officially supported. Competing platforms - the Fronius GEN24 Plus and the SMA Sunny Tripower Hybrid - support BYD Battery-Box, VARTA, LG RESU, and other third-party batteries via open protocols. Choosing the MB0 effectively locks the owner into Huawei's pricing for any future storage expansion.

Monitoring Requires FusionSolar Cloud Connectivity

Full monitoring functionality and remote configuration depend on a live connection to Huawei FusionSolar servers hosted in China. Local LAN access is limited compared to SMA, where the integrated web server operates fully offline. This may be a significant constraint for commercial customers with data sovereignty policies.

Alternatives

All Huawei inverters
Inverter Power Euro eff. MPPT Weight Difference
Huawei SUN2000-20K-MB0 20 kW 98.1% 2 21.0 kg You are here
MID 20KTL3-XH 20 kW 98.5% - 31.0 kg +0.4 pp efficiency, 10.0 kg heavier
Fronius Verto 20.0 Plus 20 kW 98.0% 3 43.0 kg +1 MPPT, 22.0 kg heavier
HYD 20KTL-3PH 20 kW 97.7% 2 39.5 kg -0.4 pp efficiency, 18.5 kg heavier
SH20T 20 kW 97.6% 3 38.0 kg -0.5 pp efficiency, +1 MPPT, 17.0 kg heavier
S6-EH3P20K-H 20 kW 97.5% 4 35.2 kg -0.6 pp efficiency, +2 MPPT, 14.2 kg heavier
WIT 20K-XHU 20 kW 97.2% 2 45.0 kg -0.9 pp efficiency, 24.0 kg heavier
WIT 20K-HU 20 kW 97.0% 2 55.0 kg -1.1 pp efficiency, 34.0 kg heavier
SUN-20K-SG01HP3-EU-AM2 20 kW 97.0% 2 30.5 kg -1.1 pp efficiency, 9.5 kg heavier

About the SUN2000-MB0 series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this model's own.

What is the warranty period for the Huawei SUN2000-MB0 inverter series?
The standard manufacturer's warranty for the Huawei SUN2000-MB0 series is 5 years. As a Tier 1 manufacturer with a global service network, Huawei offers warranty extension options through dedicated service contracts. When selecting an installer, it is advisable to confirm that they are an authorized Huawei partner, as this streamlines any warranty claim procedures within Poland.
Can the SUN2000-MB0 inverter be connected to the LUNA2000 energy storage system?
Yes, the SUN2000-MB0 series is factory-ready for integration with Huawei's high-voltage LUNA2000 battery storage system. No additional control modules are required - the inverter natively manages battery charging and discharging. This significantly simplifies future system expansion with energy storage, eliminating the need to replace the inverter at a later stage.
What is the peak efficiency of the Huawei SUN2000-MB0 inverter, and what does it mean in practice?
The peak efficiency of the SUN2000-MB0 series is 98.4%, and its European efficiency - which accounts for real-world operating conditions under variable irradiance - is equally high and particularly relevant in the Polish climate. This means DC-to-AC conversion losses are minimal, resulting in greater annual energy yield compared to lower-efficiency devices. Even a difference of a few percentage points translates into tangible savings on electricity bills over the entire operational lifetime of the installation.
How does the SUN2000-MB0 handle partial shading of rooftop panels?
The SUN2000-MB0 series features 2 independent MPPT trackers with a total of 4 DC inputs, enabling the installer to assign string groups with different orientations or exposure to partial shading to separate inputs. Each MPPT tracker operates independently, so shading on a portion of the panels - caused, for example, by a chimney or dormers - does not reduce the yield from the remaining strings. This is especially important for complex multi-pitch roof configurations.
How does system monitoring work with the SUN2000-MB0 inverter - is a separate gateway required?
The SUN2000-MB0 communicates with the FusionSolar application via built-in Wi-Fi, with no need to purchase a separate data logger in a standard configuration. If the Wi-Fi signal at the installation site is weak, an Ethernet dongle or a 4G cellular modem can be used as an alternative communication channel. The FusionSolar app provides real-time visibility into energy production, historical data, active alarms, and self-consumption balance.
What size PV installation is the Huawei SUN2000-MB0 series designed for?
The SUN2000-MB0 series encompasses three-phase models rated at 12, 15, 17, 20, and 25 kW, making it suitable for larger residential installations - single-family homes with higher energy demand - as well as small and medium-sized commercial applications, including service facilities, office buildings, and agricultural sites. The three-phase nature of the device requires a three-phase grid connection, which should be confirmed with the installer prior to purchase.
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