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Deye SUN-40K-SG01HP3-EU-BM4

40 kW Hybrid Three-phase Battery-ready
Compare with closest alternative Datasheet PDF
Rated AC (kW)
40.00
Weak · bottom 23%
Euro eff. (%)
97.0
Weak · bottom 2%
MPPT
-
Not published
Max DC (V)
1000
Typical · median 1100 V
Weight (kg)
80.0
Weak · 16.0 kg above median
Warranty (yrs)
5
Typical · median 5 yrs

The Deye SUN-SG01HP3-EU series are hybrid three-phase inverters designed for on-grid operation, with the option for backup power and flexible energy source switching. In practice, this means stable PV system operation even when you aim to increase self-consumption or protect your facility against power supply interruptions. A major advantage is the multi-string MPPT technology-facilitating the design of rooftop systems with different orientations and helping minimize yield losses even with partial shading, as each panel area can be optimized independently. High European efficiency translates into better energy production under real-world operating conditions, not just in the lab. Robust communication and monitoring options (WiFi, LAN, and wired integrations) are also beneficial for daily operation, providing parameter views and quick diagnostics. This series is also compatible with high-voltage energy storage systems, valued in larger homes, as well as in commercial and industrial installations where scalability, EU market certification, and specific warranty conditions matter.

Ranking

243 inverters from 30 to 100 kW
Metric This inverter Median Position in class Rank in class
European efficiency 97.0% 98.2% Weak · bottom 2% 161
MPPT trackers - 4 Not published -
Max DC input voltage 1000 V 1100 V Typical 125
Weight per kW 2.0 1.1 Weak · bottom 10% 202
Warranty 5 yrs 5 yrs Typical 17
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Price offers

1 from shops we track
Shop Country Price Per kW Stock Offer updated Link to shop
Sklep Soltech Poland 14 401.40 zł net 360.03 zł/kW Not stated 23h ago Visit shop

Specifications

Open datasheet PDF
Rated AC power 40 kW Continuous output
Max AC power 44.00 kW Short-term output above the rating
Phases Three-phase
Nominal AC voltage 400 V
Max AC current 66.7 A
Power factor 0.8 leading to 0.8 lagging
Harmonic distortion (THD) 3.0 %
Max DC input power 52.00 kW DC/AC ratio 1.30
Max DC voltage 1000 V Caps the string length
MPPT voltage range 150 to 850 V
Start-up voltage 180 V
Max input current per MPPT 36.0 A Must exceed the panel's Imp
Max short-circuit current per MPPT 55.0 A Must exceed the panel's Isc
European efficiency 97.0 % Weighted across part loads
Max efficiency 97.6 % Best single operating point
Battery port Yes
Battery voltage 160-800
Max charge current 100.0 A
Max discharge current 100.0 A
Grid-forming Yes
Dimensions 894 × 527 × 294 mm Height × width × depth
Weight 80.0 kg 2.0 kg per kW
Enclosure IP65
Cooling forced-air
Noise 65 dB
Operating temperature -40 to 60 °C
Protocols RS485CAN
Protection Surge protection
Warranty 5 years Standard manufacturer cover
Certifications VDE4105IEC61727/62116VDE0126AS4777.2CEI 0-21EN50549-1G98G99C10-11UNE217002NBR16149NBR16150IEC/EN 61000-6-1/2/3/4IEC/EN 62109-1IEC/EN 62109-2

Pros and cons

5 positive · 1 caution
What owners get
European efficiency ~97.0%

According to the official datasheet (AM2, July 2023), the European efficiency is approximately 97.0%, with a peak of around 97.6%. This is a competitive level compared to Sungrow SH-RT (approximately 97.3%) and Fronius Symo GEN24 (approximately 97.0%), which translates to a realistically higher annual yield under variable solar irradiation conditions typical for Poland.

Wide MPPT range: 150-850 V, with 2-4 trackers

The input voltage range of 150-850 V DC and at least 2 independent MPPTs (models 5-25 kW) or up to 4 MPPTs (models 30-50 kW) allow for the design of installations on roofs with various orientations and inclines, without significant performance losses due to partial shading. MPPT efficiency, according to the datasheet, is ≥99.9%.

Scalability: Up to 10 inverters can be connected in parallel.

The series supports the operation of up to 10 devices in a master-slave topology, both on-grid and off-grid. This allows for the creation of C&I installations ranging from 5 kW to approximately 500 kW with a unified ecosystem, without the need for an additional system controller, which reduces project complexity.

EU certifications required for connection

The series complies with CE, TÜV, EN 50549 conformity declaration, NC RfG requirements, and VDE-AR-N 4105, IEC 62116, and IEC 61727. This means that it avoids potential issues with obtaining grid connection permits from Polish grid operators and notification to the network operator, which can be a significant obstacle for less scrupulous manufacturers.

10-year warranty (5+5) and Tier 1 status

Deye offers a 5-year manufacturer's warranty in Europe, with the option to extend it to 10 years through the distributor. Furthermore, in 2024, Deye was included in the Tier 1 Cleantech Companies list by S&P Global Commodity Insights, which confirms the bankability required by investors financing PV projects.

Trade-offs
SolarmanPV Cloud Monitoring

The SolarmanPV (SOLARMAN Smart) platform is a Chinese cloud infrastructure. For commercial and industrial installations covered by GDPR or internal IT requirements, this can pose a challenge - data traffic passes through servers outside of the EU, and the options for data export and integration with local SCADA systems are limited compared to solutions offered by SMA (Sunny Portal in the EU) or Fronius (Solar.web, with the option for a local instance).

Alternatives

All Deye inverters
Inverter Power Euro eff. MPPT Weight Difference
Deye SUN-40K-SG01HP3-EU-BM4 40 kW 97.0% - 80.0 kg You are here
GW40K-ET-10 40 kW 97.8% - 62.0 kg +0.8 pp efficiency, 18.0 kg lighter
S6-EH3P40K-H 40 kW 97.4% - 73.0 kg +0.4 pp efficiency, 7.0 kg lighter
MID 40K-HU 40 kW 97.2% - 48.0 kg 32.0 kg lighter
WT 40K-H-US L2 / WT 40K-HU-US L2 40 kW - 2 140.0 kg 60.0 kg heavier
WIT 40K-A-US L2 / WIT 40K-AU-US L2 40 kW - - 120.0 kg 40.0 kg heavier
WIT 40K-XHU 40 kW - 4 90.0 kg 10.0 kg heavier
SOLXPOW X4-40K 40 kW - - 72.0 kg 8.0 kg lighter
MID 36K-HU 36 kW 97.2% - 48.0 kg -4.0 kW, 32.0 kg lighter

About the SUN-SG01HP3-EU series

6 answered

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

What power output is available for the Deye SUN-SG01HP3-EU series?
The SUN-SG01HP3-EU series is available in a wide range of power outputs: the AM2 variant includes models ranging from 5 kW to 25 kW (5, 6, 8, 10, 12, 15, 20, 25 kW), and the BM3/BM4 variant extends the offering to 29.9-50 kW. This makes the series suitable for both large single-family homes and commercial or industrial installations that require higher power outputs.
What is the warranty period for the Deye SUN-SG01HP3-EU inverter?
The manufacturer provides a 10-year warranty on the SUN-SG01HP3-EU series inverters. This is the standard warranty for this class of hybrid inverters from Deye. To maintain this warranty, the equipment must be installed by an authorized installer and the installation recommendations outlined in the manufacturer's documentation must be followed.
How many MPPT trackers does the Deye SUN-SG01HP3-EU inverter have, and why is this important?
AM2 models (5-25 kW) are equipped with 2 independent MPPT (Maximum Power Point Tracking) controllers with a DC voltage range of 150-850 V. The two separate MPPT controllers allow for connecting panels installed in different orientations or at different angles to separate inputs, ensuring that each section of the roof operates at its own maximum power point. This minimizes losses due to partial shading or different orientations of the panels.
Which energy storage systems are compatible with the Deye SUN-SG01HP3-EU series?
The SUN-SG01HP3-EU series supports high-voltage (HV) batteries that communicate using the CAN or RS485 protocol. Compatibility has been confirmed with devices such as Deye BOS-G, BYD Battery-Box Premium HV, Pylontech Phantom-S, and Dyness. Before purchasing the device, it is advisable to check the latest compatibility list from Deye, as the manufacturer regularly updates it.
How quickly does the Deye SUN-SG01HP3-EU inverter switch to backup power (EPS)?
The switching time to EPS (battery-backed emergency power) mode is less than 20 ms. In practice, this means that most sensitive devices - computers, refrigerators, air conditioners - will not experience any interruption in power supply. The EPS function operates automatically when the mains power fails, without requiring any manual intervention.
How can I monitor the performance of the Deye SUN-SG01HP3-EU inverter in real-time?
The inverter includes a built-in Wi-Fi module and a LAN port, which allows for monitoring of operating parameters via the SolarmanPV app or web portal. Wired RS485 and Modbus TCP communication is also available, which is useful for integration with energy management systems (EMS) or building automation systems. Data on production, battery status, and consumption are available in real-time.
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