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GoodWe GW5K-ETA-G20 ESA Series hybrid inverter

By GoodWeSKU not documented

Three-phase inverter
Evidence score15/100Missing details
No owner reviews yet · Write the first
Continuous output5 kWBattery only5.5 kWBattery voltage700 to 950 VSolar input10 kWMPPT trackers3MPPT range120 to 950 VAC outputThree-phaseWarrantyNot statedSize73.44 L*W: 800 × H: 340 × D: 270 mmWeight34 kg / 74.96 lb

Key specs

Units
Weight
34 kg75 lb converted
Official user manual
Sources

Printed as "34" in the GW5K-ETA-G20 column of the Weight (kg) row (General Data) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 286 (printed page 285); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 286 (printed page 285), 9.1 Inverter Parameters, General Data section, Weight (kg) row, GW5K-ETA-G20 column

Documented

MPPT trackers
3
Official user manual
Sources

Printed as "3" in the GW5K-ETA-G20 column of the Number of MPPTs row (PV Side) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 281 (printed page 280); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 281 (printed page 280), 9.1 Inverter Parameters, PV Side section, Number of MPPTs row, GW5K-ETA-G20 column

Documented

Peak output
Off-grid: 5.5 kVA, 10.0 kVA for 10 s; on-grid: 43.5 kVA
Official user manual
Sources

Printed as "Off-grid: 5.5 (10.0, 10s), on-grid: 43.5" in the GW5K-ETA-G20 column of the Max. Apparent Power (kVA) row (AC Side (Back-up Port)) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 283 (printed page 282); read from the rendered page and checked against the text layer. Back-up port maximum apparent power (kVA); the first figure is the continuous one and the bracket gives the 10-second figure. The table's footnote *7 says "Off grid" means the back-up output comes only from PV and battery and "On grid" that it includes energy from the grid or a generator side.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 283 (printed page 282), 9.1 Inverter Parameters, AC Side (Back-up Port) section, Max. Apparent Power (kVA) row, GW5K-ETA-G20 column

Documented

AC voltage
220/380 V, 230/400 V, 3L/N/PE
Official user manual
Sources

Printed as "220/380, 230/400, 3L/N/PE" in the GW5K-ETA-G20 column of the Nominal Voltage (V) row (AC Side (Grid Port)) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 282 (printed page 281); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 282 (printed page 281), 9.1 Inverter Parameters, AC Side (Grid Port) section, Nominal Voltage (V) row, GW5K-ETA-G20 column

Documented

Battery charging
6.7 A
Official user manual
Sources

Printed as "6.7" in the GW5K-ETA-G20 column of the Max. Continuous Charging Current (A) row (Battery Side) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 280 (printed page 279); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 280 (printed page 279), 9.1 Inverter Parameters, Battery Side section, Max. Continuous Charging Current (A) row, GW5K-ETA-G20 column

Documented

Dimensions
73.44 L
Calculated: Enclosure volume: W × H × D ÷ 1,000,000
W: 800 × H: 340 × D: 270 mmW: 31.5 × H: 13.4 × D: 10.6 in convertedOfficial user manual
Sources

Printed as "800*340*270" in the GW5K-ETA-G20 column of the Dimension (W×H×D mm) row (General Data) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 286 (printed page 285); read from the rendered page and checked against the text layer. The row is headed W×H×D.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 286 (printed page 285), 9.1 Inverter Parameters, General Data section, Dimension (W×H×D mm) row, GW5K-ETA-G20 column

Calculated

Efficiency
98 %
Official user manual
Sources

Printed as "98.00%" in the GW5K-ETA-G20 column of the Max. Efficiency row (Efficiency) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 284 (printed page 283); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 284 (printed page 283), 9.1 Inverter Parameters, Efficiency section, Max. Efficiency row, GW5K-ETA-G20 column

Documented

MPPT voltage range
120 to 950 V
Official user manual
Sources

Printed as "120~950" in the GW5K-ETA-G20 column of the MPPT Operating Voltage Range (V) row (PV Side) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 281 (printed page 280); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 281 (printed page 280), 9.1 Inverter Parameters, PV Side section, MPPT Operating Voltage Range (V) row, GW5K-ETA-G20 column

Documented

All specs28
Peak output
Off-grid: 5.5 kVA, 10.0 kVA for 10 s; on-grid: 43.5 kVA
Official user manual
Sources

Printed as "Off-grid: 5.5 (10.0, 10s), on-grid: 43.5" in the GW5K-ETA-G20 column of the Max. Apparent Power (kVA) row (AC Side (Back-up Port)) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 283 (printed page 282); read from the rendered page and checked against the text layer. Back-up port maximum apparent power (kVA); the first figure is the continuous one and the bracket gives the 10-second figure. The table's footnote *7 says "Off grid" means the back-up output comes only from PV and battery and "On grid" that it includes energy from the grid or a generator side.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 283 (printed page 282), 9.1 Inverter Parameters, AC Side (Back-up Port) section, Max. Apparent Power (kVA) row, GW5K-ETA-G20 column

Documented

AC voltage
220/380 V, 230/400 V, 3L/N/PE
Official user manual
Sources

Printed as "220/380, 230/400, 3L/N/PE" in the GW5K-ETA-G20 column of the Nominal Voltage (V) row (AC Side (Grid Port)) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 282 (printed page 281); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 282 (printed page 281), 9.1 Inverter Parameters, AC Side (Grid Port) section, Nominal Voltage (V) row, GW5K-ETA-G20 column

Documented

Battery charging
6.7 A
Official user manual
Sources

Printed as "6.7" in the GW5K-ETA-G20 column of the Max. Continuous Charging Current (A) row (Battery Side) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 280 (printed page 279); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 280 (printed page 279), 9.1 Inverter Parameters, Battery Side section, Max. Continuous Charging Current (A) row, GW5K-ETA-G20 column

Documented

Efficiency
98 %
Official user manual
Sources

Printed as "98.00%" in the GW5K-ETA-G20 column of the Max. Efficiency row (Efficiency) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 284 (printed page 283); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 284 (printed page 283), 9.1 Inverter Parameters, Efficiency section, Max. Efficiency row, GW5K-ETA-G20 column

Documented

AC frequency
50 / 60 Hz
Official user manual
Sources

Printed as "50/60" in the GW5K-ETA-G20 column of the Nominal Frequency (Hz) row (AC Side (Grid Port)) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 282 (printed page 281); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 282 (printed page 281), 9.1 Inverter Parameters, AC Side (Grid Port) section, Nominal Frequency (Hz) row, GW5K-ETA-G20 column

Documented

Battery discharge current
7.4 A
Official user manual
Sources

Printed as "7.4" in the GW5K-ETA-G20 column of the Max. Continuous Discharging Current (A) row (Battery Side) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 280 (printed page 279); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 280 (printed page 279), 9.1 Inverter Parameters, Battery Side section, Max. Continuous Discharging Current (A) row, GW5K-ETA-G20 column

Documented

AC output
Three-phase
Official user manual
Sources

Printed as "three phase" in the GW5K-ETA-G20 column of the Type of Electrical Supply System row (General Data) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 287 (printed page 286); read from the rendered page and checked against the text layer. From the Type of Electrical Supply System row.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 287 (printed page 286), 9.1 Inverter Parameters, General Data section, Type of Electrical Supply System row, GW5K-ETA-G20 column

Documented

Battery-only output
5.5 kW
Official user manual
Sources

Printed as "5.5" in the GW5K-ETA-G20 column of the Max. Discharging Power (kW) row (Battery Side) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 280 (printed page 279); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 280 (printed page 279), 9.1 Inverter Parameters, Battery Side section, Max. Discharging Power (kW) row, GW5K-ETA-G20 column

Documented

Battery voltage
750 V
Official user manual
Sources

Printed as "750" in the GW5K-ETA-G20 column of the Nominal Voltage (V) row (Battery Side) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 280 (printed page 279); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 280 (printed page 279), 9.1 Inverter Parameters, Battery Side section, Nominal Voltage (V) row, GW5K-ETA-G20 column

Documented

Max charge power
5 kW
Official user manual
Sources

Printed as "5" in the GW5K-ETA-G20 column of the Max. Charging Power (kW) row (Battery Side) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 280 (printed page 279); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 280 (printed page 279), 9.1 Inverter Parameters, Battery Side section, Max. Charging Power (kW) row, GW5K-ETA-G20 column

Documented

Night consumption
10 W
Official user manual
Sources

Printed as "≤10" in the GW5K-ETA-G20 column of the Self-consumption at Night (W) row (General Data) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 286 (printed page 285); read from the rendered page and checked against the text layer. Printed with a less-than-or-equal sign ("≤10"): the figure is an upper limit, recorded as 10 W.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 286 (printed page 285), 9.1 Inverter Parameters, General Data section, Self-consumption at Night (W) row, GW5K-ETA-G20 column

Documented

Continuous output
5 kW
Official user manual
Sources

Printed as "5" in the GW5K-ETA-G20 column of the Rated Power (kW) row (AC Side (Grid Port)) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 281 (printed page 280); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 281 (printed page 280), 9.1 Inverter Parameters, AC Side (Grid Port) section, Rated Power (kW) row, GW5K-ETA-G20 column

Documented

Battery conversion efficiency
98 %
Official user manual
Sources

Printed as "98.00%" in the GW5K-ETA-G20 column of the Max. Battery to AC Efficiency row (Efficiency) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 284 (printed page 283); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 284 (printed page 283), 9.1 Inverter Parameters, Efficiency section, Max. Battery to AC Efficiency row, GW5K-ETA-G20 column

Documented

Battery operating voltage
700 to 950 V
Official user manual
Sources

Printed as "700~950" in the GW5K-ETA-G20 column of the Voltage Range (V) row (Battery Side) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 280 (printed page 279); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 280 (printed page 279), 9.1 Inverter Parameters, Battery Side section, Voltage Range (V) row, GW5K-ETA-G20 column

Documented

Weighted efficiency
96.4 %
Official user manual
Sources

Printed as "96.40%" in the GW5K-ETA-G20 column of the European Efficiency row (Efficiency) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 284 (printed page 283); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Location: User manual PDF page 284 (printed page 283), 9.1 Inverter Parameters, Efficiency section, European Efficiency row, GW5K-ETA-G20 column

Documented

Published claims and calculations, not independent test results.

Documents

1 on file
  • WEB
    ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04)OfficialGoodWe Technologies Co., Ltd.Official user manualSeptember 4, 2026
    Source details
    Revision
    V1.5
    Revision date
    September 4, 2026

    Archived copy captured on 2026-09-29.

    Location: Applicable Products; Battery Technical Data

    Retrieved

    GoodWe's user manual for the three-phase ESA Series, linked as "User Manual" from the ESA 5-30kW page; the link resolves to en.goodwe.com/Ftp/EN/Downloads/User%20Manual/GW_ESA-5-30kW_User-Manual-EN.pdf. Captured September 29, 2026. It lists the six GW...-BAT-D-G20/G21 modules among its applicable products and prints their Battery Technical Data; it is the most recent manual covering them and is used as the primary source. Manufacturer claims, not independently verified.

    Archived copies

    Archived copy of a document published by GoodWe Technologies Co., Ltd.. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup V1.5-2026-09-04 · 29.69 MB

    Archived copy, unaltered, kept as a record of what GoodWe Technologies Co., Ltd. published. Original address: https://en.goodwe.com/Skippower/downloadFileF?id=3818&mid=60. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source

    Printed revision date: 2026-09-04

    Pages
    351
    Embedded creation date
    Sep 4, 2026
    Embedded modification date
    Sep 4, 2026

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: 67a7f715ca9db734edba1b4f15b50d1a29c866b172ffd1909759e0abc66c8d2a

    Open

Archive and older revisions

Archive and older revisions0

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Archived documents

ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04)

Archived copy of a document published by GoodWe Technologies Co., Ltd.. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup V1.5-2026-09-04 · 29.69 MB

Archived copy, unaltered, kept as a record of what GoodWe Technologies Co., Ltd. published. Original address: https://en.goodwe.com/Skippower/downloadFileF?id=3818&mid=60. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source

Printed revision date: 2026-09-04

Pages
351
Embedded creation date
Sep 4, 2026
Embedded modification date
Sep 4, 2026

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 67a7f715ca9db734edba1b4f15b50d1a29c866b172ffd1909759e0abc66c8d2a

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Evidence score

15/100Missing details15% documented

The Evidence score uses the priorities you choose. It counts published documents, such as certificates and warranty terms, and it compares a documented figure with the best documented figure of the same kind. It does not count owner reviews, and it is not a verdict on product quality or on how many people have reviewed it. A low score can mean little is documented, or that a documented figure is below the best of its kind. Undisclosed data scores 0.

Missing details. This number counts only the evidence recorded so far. The source review for this product is not finished, or the maker has not disclosed enough, so the number can only go up.

Missing for this product: Certificate evidence needed; Warranty term needed; Idle consumption needed.

Each input is scored against the best documented value for an inverter: warranty term and battery conversion efficiency against every published inverter, idle consumption (lower is better) against the inverters in the same output band, or against every published inverter when the output is not documented. A documented value always earns points; an undisclosed one earns 0 and is listed as missing. Researched products receive a score. Certificates earn points for the evidence itself. Size and weight do not affect scores.

Battery conversion efficiency98 %15.0 / 15.0

98 of 98.2 %, the best documented for an inverter (printed by the maker): GoodWe GW100K-ET-G10

Printed as "98.00%" in the GW5K-ETA-G20 column of the Max. Battery to AC Efficiency row (Efficiency) of the 9.1 Inverter Parameters table in GoodWe's ESA Series 5-30kW user manual (V1.5, 2026-09-04), PDF page 284 (printed page 283); read from the rendered page and checked against the text layer.

Official user manual: ESA Series 5-30kW user manual (GoodWe, V1.5, 2026-09-04) Rev V1.5 · September 4, 2026 · Checked · Earlier document

Research pending, 0 points: Certificates, Warranty term, Idle consumption.

Warranty term and battery conversion efficiency are compared with every published inverter; idle consumption with the inverters in the same 3.5 to 7 kW output band. · Method version 0.5

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Parts and accessories

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Model history

Model identity

Model
GW5K-ETA-G20

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