Description
99.99 kW continuous AC with 200 kW of solar across ten trackers.
The GW99.99K-ETR-G10 is a 99.99 kW three-phase hybrid inverter: 99.99 kW continuous AC with high-voltage multi-MPPT solar intake.
- Rated 99.99 kW / 99.99 kVA on-grid, 99.99 kW / 99.99 kVA max, 144.4 A rated and 144.4 A max at 400 V
- 200 kW PV input across 10 MPPTs, 2 strings each, 42 A / 55 A, 160 to 1000 V operating, 1100 V max
- One LFP battery port, 700 to 1000 V, 750 V nominal, 142.8 A, 99.99 kW charge and discharge
- Backup 99.99 kVA nominal / 99.99 kVA max with an STS Box or STS Cabinet
Backup needs an STS Box or STS Cabinet. On/off-grid switching is <10 ms on one unit.
99.99 kW continuous output (99.99 kW max) on 3L/N/PE.
200 kW PV on 10 MPPTs, 2 strings per tracker, 42 A / 55 A.
One 700–1000 V LFP port at 142.8 A / 99.99 kW; pairing with GW261.2-BAT-LCD-G10, Voc > 813 V.
Backup path needs an STS Box or STS Cabinet; switchover <10 ms on one unit.
Takes 99.99 kW on a 700 to 1000 V battery bus
The battery port operates from 700 to 1000 V with a 750 V nominal rating and 700 V start-up. Continuous charge and discharge current reaches 142.8 A. The Battery Compatibility Overview names GW261.2-BAT-LCD-G10 for ETR 80–125 kW; PV string Voc must sit above 813 V with that cabinet.
Fits 200 kW across 10 MPPT channels
10 MPPT trackers handle 42 A each with 2 strings per tracker. Operating voltage spans 160 to 1000 V with a 1100 V maximum input rating. Between 1000 V and 1100 V the inverter stands by and returns to work at 1000 V.
Holds 99.99 kVA backup with an external STS
Backup power provides 99.99 kVA nominal and 99.99 kVA max with an STS Box or STS Cabinet on the path. Peak without grid: 120% for 60 s; 150% for 10 s. Switchover time is under 10 ms on one unit.
IP66 wall unit, 96 kg
The wall-mounted unit measures 995 × 758 × 358 mm and weighs 96 kg. Intelligent air cooling, 60 dB noise emission and −35 to +60 °C operation. Remote shutdown is integrated.
Technical data
AC Output (On-Grid)
- Rated / max. power
- 99.99 kW rated / 99.99 kW max (GW99.99K-ETR-G10)
- Rated / max. apparent power
- 99.99 kVA / 99.99 kVA
- Rated / max. current at 400 V
- 144.4 A / 144.4 A
- Nominal voltage
- 220/380, 230/400, 240/415 V, 3L/N/PE, 50/60 Hz
- Power factor / THDi
- ~1, adjustable 0.8 leading – 0.8 lagging / THDi <3%
PV Input
- Max. PV input power
- 200 kW maximum PV input (GW99.99K-ETR-G10)
- Max. input voltage
- 1100 V (standby above 1000 V)
- MPPT operating voltage range
- 160–1000 V; start-up 200 V; nominal 620 V
- MPPTs / strings
- 10 MPPTs, 2 strings per MPPT
- Max. MPPT current / short-circuit current
- 42 A / 55 A per MPPT
Battery Interface
- Battery type / voltage window
- LFP700–1000 V, nominal 750 V, start-up 700 V, one battery connection port
- Max. charge / discharge power
- 99.99 kW
- Max. continuous charge / discharge current
- 142.8 A
- Compatible battery system
- ETR 80–125 kW: GW261.2-BAT-LCD-G10PV string Voc must exceed 813 V with that cabinet.
Backup (with STS)
- Nominal / max. backup apparent power
- 99.99 kVA / 99.99 kVA; STS Box or STS Cabinet required
- Peak output power without grid
- 120% for 60 s; 150% for 10 s
- On/off-grid switching time
- <10 ms (one unit)
Efficiency & General
- Max. / European efficiency
- 98.1% / 97.7%
- Max. battery-to-AC efficiency
- 98.2%
- Enclosure / environment
- IP66, -35 to +60 °C, 0–100% RH, max. 4,000 m, intelligent air cooling, noise 60 dB
- Dimensions / weight / mounting
- 995 × 758 × 358 mm / 96 kg / wall-mounted
- Communication
- RS485, Wi-Fi, LAN, Bluetooth, 4GModbus TCP (SunSpec compatible) · CAN to BMS · LED + optional LCD + app
- Inverter package
- Includes GM330 meter × 1, smart dongle × 1, 10 m meter cable, 5 m parallel cable, PV and battery connectors
Documents
GoodWe ETR Series 80–125 kW Datasheet (EMEA, EN) GoodWe ETR Series 80–125 kW Datasheet (EMEA, DE) GoodWe ETR 50–125 kW User Manual (EN) GoodWe ETR 50–125 kW User Manual (DE) GoodWe Battery Compatibility Overview (EMEA, EN) GoodWe Battery Compatibility Overview (EMEA, DE) GoodWe ETR-G10 EU Declaration of Conformity GoodWe ETR EN 50549-1 certificate GoodWe ETR EN 50549-2 certificate GoodWe ETR VDE-AR-N 4105 certificate GoodWe ETR IEC 61727 / IEC 62116 certificate GoodWe ETR quick installation guideProduct questions
Which BAT-C cabinet is listed for GW99.99K-ETR-G10?
The Battery Compatibility Overview lists GW261.2-BAT-LCD-G10 for ETR 80–125 kW. With that cabinet, PV string open-circuit voltage must exceed 813 V.
Is an external STS needed for the ETR backup path?
Yes. An STS Box or STS Cabinet is required for the backup path. The inverter alone does not provide a complete backup path.
Can PV strings operate in the 1000–1100 V band?
No. GW99.99K-ETR-G10 has 1100 V as the maximum PV input, but stands by from 1000 to 1100 V; operation resumes once voltage returns to 1000 V.
Compatibility records
GoodWe's Battery Compatibility Overview (p. 6) lists GW261.2-BAT-LCD-G10 in its ETR 80–125 kW column, and the GoodWe ETR 80–125 kW datasheet (EMEA, p. 2) names GW125K-ETR-G10 in that series. The GoodWe ETR 50–125 kW user manual (pp. 24–27) lists both models in its single-unit and parallel system tables; parallel systems require SEC3000C main program V7.8.19 or later. The datasheet (p. 3, footnote 4) requires a PV-string open-circuit input voltage above 813 V when this battery is connected.





