GoodWe GW99.99K-ET-G10
GoodWe GW99.99K-ET-G10 is a three-phase C&I hybrid inverter rated 99.99 kW with eight MPP trackers, 21 A per string and 200 percent PV oversizing.
- Backup output matches the inverter's full rated AC power, switchover under 10 ms; up to 98.1% max. efficiency (97.7% European weighted).
- GoodWe's signed compatibility statement (2025-04-07) names this exact trio — GW80K-ET-G10, GW99.99K-ET-G10, GW100K-ET-G10 — against the BAT-AC cabinet, stacking up to 4 units (450 kWh) per inverter.
- The GW125K-STS-G10 static transfer switch is the GoodWe-paired backup box for this tier specifically, with under 10 ms grid/off-grid transfer and diesel generator control.
- Three Phase
- Phase
- 98.1 %
- Max. efficiency
- 300 ~ 800 V
- Battery voltage
- IP66
- Ingress protection
- Manufacturer
- GoodWe
- Model code
- GW99.99K-ET-G10
- Item no.
- DLK-GOODWE-GW9999KETG10
- Delivery
- Germany delivery estimate: EUR 65–200 · The final delivery charge is included in your Proforma.
Plan with GW99.99K-ET-G10
New system, extension or replacement? Linker Advisor starts from this article and asks only for what is still open — existing model, quantity, postcode, installation date.
Figures transcribed from the manufacturer datasheet on file. Confirm your grid code and configuration with our engineers before ordering.
- GoodWe · SAJ · Pylontech · EcoFlow · Chint paired from the maker’s own lists
- Datasheets on file for every item
- Within 24 h engineering response
- MOQ 1 unit · EU delivery
- Engineering-checked configurations
Numbers that survive the bank's site audit.
Every figure below comes from the manufacturer datasheet on file — the same document your lender's technical advisor will request.
Nominal AC power
Max. apparent power
MPPTs
Max. efficiency
Store sun. Sell peak.
Charge through solar noon, discharge into evening tariffs - up to 99.99 kW shifted on your tariff schedule.
Eight MPP trackers
200 kW maximum PV input, 42 A per tracker, two strings per tracker, 200 percent oversizing.
Inspect it before you spec it.
Official renders, installation photos and system panels for this model line.
Manufacturer product image from the official datasheet.
GoodWe ET 80-100 kW inverter, official render from the GoodWe datasheet
Specifications
Every value exactly as published in the official GW99.99K-ET-G10 documentation.
Documents
Complete the system
Balance-of-system and accessories paired with this model. Every pairing follows the manufacturer's official compatibility list.
GoodWe GM3000 three-phase meter
- [1]GoodWe GM3000 three-phase meter
GoodWe GW61.4 / GW112.6-BAT-AC-G10 battery cabinet
- [1]GoodWe GW61.4 / GW112.6-BAT-AC-G10 battery cabinet
GoodWe GW125K-STS-G10 static transfer switch
GoodWe SEC3000C
- [1]GoodWe GW125K-STS-G10 static transfer switch
- [2]GoodWe SEC3000C
What this unit is approved to run with.
Every pairing below traces to a manufacturer compatibility list, by document version and date. A pairing only one maker lists is marked; we quote it, an engineer confirms it.
Pick the rating
GoodWe family. Same engineering, different size.
Every figure comes straight from the manufacturer's official datasheet.
Configuration 1
GoodWe pairs the BAT Series cabinets with this tier: up to four 112 kWh units per inverter, 448 kWh total per the datasheet.
- Compatibility evidence: GoodWe's Battery Compatibility Overview (ET 75-100K column) plus a signed compatibility statement dated 2025-04-07 name this exact trio against the BAT-AC cabinet (GW61.4 / GW112.6-BAT-AC-G10).
- Battery side: two inputs at 300 to 800 V; continuous current 100 A x 2 on the 80 kW model, 110 A x 2 on the 99.99 and 100 kW models.
- Charge and discharge power: 88, 99.99 or 110 kW by model.
Installation & wiring 2
The GW125K-STS-G10 static transfer switch, and only when the backup or generator ports are used. On-grid operation does not require it.
- Exact pairing: GoodWe's own product data names the ET 80 / 99.99 / 100 kW trio as the GW125K-STS-G10's paired inverters.
- Not interchangeable: the STS200-80-10 is a physically different box for the ET50 series and does not substitute here.
- Switching: on / off-grid transfer under 10 ms with the STS box, which also provides diesel generator control.
A wall-mounted unit rated IP66 with C4 anti-corrosion class, 995 x 758 x 358 mm at 97 kg, operating from -35 to +60 C.
- AC voltages: 220 / 380, 230 / 400 or 240 / 415 V three-phase (3L / N / PE) at 50 / 60 Hz.
- Cable sizing at 400 V: maximum grid current 127.1 A (80 kW), 144.4 A (99.99 kW) or 158.8 A (100 kW), per GoodWe's datasheet.
- Metering: the GoodWe GM3000 three-phase meter is the required export-control meter on this tier.
- Noise: below 60 dB with smart fan cooling.
Operation & warranty 1
Between 950 V and 1000 V the inverter enters standby and resumes normal operation when the voltage returns to 950 V. Keep cold-condition string voltage inside the 160 to 950 V MPPT window when designing strings.
- Absolute limit: maximum input voltage is 1000 V.
- Protections: DC switch, anti-islanding and remote shutdown are integrated; DC surge protection Type II (Type I + II optional), AC surge protection Type II, AFCI and rapid shutdown optional.
- Efficiency: 98.1 percent maximum, 97.7 percent European weighted, 98.2 percent battery to AC per GoodWe's datasheet.
Availability & compliance 1
The fact set on file for this family does not include a grid-code certificate list, so confirm the certificate set for your target grid operator with the quote.
- Documents: the GoodWe ET series 80-100 kW datasheet (EMEA, EN) is on file, plus GoodWe's signed battery compatibility statement dated 2025-04-07.
- Ordering: name the country and grid operator in the project inquiry and we confirm the applicable certificates before the order.
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Loads, tariff, site constraints - our engineers reply with a compatibility check and a sizing recommendation.
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