m. Сміла, Незалежності, 67г. оф, 406/6
GoodWe GW40K-SDT-P30 - three-phase grid-tied inverter 40 kW.
Description GoodWe GW40K-SDT-P30
GoodWe GW40K-SDT-P30 is a three-phase grid-tied inverter rated at 40 kW with two MPPT inputs, a maximum input voltage of 1100 V and intelligent cooling. Efficiency 98.5%, nominal output current 57.7 A per phase. IP66, 5-year warranty.
Forty kilowatts: a move into a new size class
Unlike the smaller models in the SDT series, which differ only in internal components within an identical enclosure, the GW40K-SDT-P30 gets a physically larger enclosure — 483 × 585 × 230 millimetres against 392 × 491 × 210 on the models up to 30 kilowatts.
This is not a cosmetic difference. A larger volume means greater heat-dissipation surface and space for more powerful power components able to carry 57.7 amperes on each of three phases continuously without overloading the cooling.
For a site of this scale this is no longer 'a bigger version of the same model' but a separate equipment class with its own installation requirements: greater mass, larger dimensions, and the need for clear space on all sides for servicing.
Technical specifications
rated power 40 kW, apparent power 40000 VA, three phases 380/400 V;
two MPPT inputs, tracking efficiency above 99%;
MPP range 140–1000 V, maximum input voltage 1100 V;
efficiency 98.5% peak, 98.2% European weighted;
output current 57.7 A nominal, 63.5 A maximum;
IP66, intelligent cooling, up to 4000 m, -25 to +60 °C;
mass 34 kg, dimensions 483 × 585 × 230 mm, 5-year warranty.
Selling surplus as part of the economics
At forty kilowatts, generation on a sunny day almost certainly exceeds the daytime self-consumption of a typical small or medium business site. The project is therefore worth costing from the outset with the terms of selling surplus to the grid in mind — tariff, contract with the operator, commercial metering requirements.
We support this part of the process alongside the technical calculation of the station itself, so the project's economics are clear before equipment is procured.
Long strings at 1100 volts
The high maximum input voltage allows long series strings of panels to be formed, reducing operating current at the same array power. For a site with a large roof area this is a noticeable saving on DC cable cross-section across the whole run to the inverter.
In winter this voltage headroom keeps the system safely under the inverter's limit on a frosty, sunny morning, when cold weather raises the panels' open-circuit voltage.
Monitoring and scalability
The standard SEMS Portal app shows generation from each MPPT input separately, history over any period and current efficiency. Modbus TCP and RTU are available for integration with external metering systems.
When more capacity is needed, units in this series connect in parallel, scaling the station without stepping up to heavier industrial equipment and without dismantling what is already installed.
Forty kilowatts of grid-tied generation is the level of a full commercial energy project. Send us the roof plan and your consumption parameters: we will calculate the string configuration and the terms for selling surplus to the grid.
Characteristics GoodWe GW40K-SDT-P30
Reviews about GoodWe GW40K-SDT-P30 from real users
No reviews found
