Growatt MID 25/30/40KTL3 On Grid Inverter
Growatt MID 25/30/40KTL3 On Grid Inverter is a grid-tied string inverter rated at the rating listed in the specification table, built for rooftop and ground mount PV plants that export directly to the utility with no storage stage.
What This Product Changes On Your Project
- Multiple MPP trackers, so roof sections at different pitches and orientations do not have to share one string
- Transformerless topology keeps conversion loss and unit weight down at this power class
- Grid protection built in - anti-islanding, insulation monitoring, residual-current monitoring and surge protection
- Outdoor-rated enclosure that can be wall-mounted next to the array instead of inside a plant room
- Standard monitoring interfaces so the plant reports into existing supervisory software
Application Scenarios
- Off-grid and weak-grid sites running PV, battery and generator together
- Industrial microgrids switching between grid-tied and island operation
- Commercial rooftop PV exporting to the utility under a net-metering or feed-in scheme
- Ground-mount arrays where several sub-arrays share one inverter station
- Solar-plus-storage retrofits on sites that already have PV
Who It Is For
- PV installers and EPC contractors specifying inverters for grid connection approval
- Distributors carrying inverter lines for commercial rooftop work
- System integrators building solar-plus-storage and microgrid systems
- Asset owners standardising on one inverter platform across a portfolio
Problems It Solves
- Roof geometry that forces strings of different lengths and orientations onto one inverter
- Grid codes that reject an installation without export limitation and reactive power control
- Conversion loss and heat derating that quietly erode plant yield in summer
- Separate PV and storage conversion stages that double the failure points and the commissioning time
Technical Features
- Smart cooling with temperature-based derating rather than abrupt shutdown
- RS485 and wireless monitoring interfaces
- Independent MPP trackers, each tracking its own string set
- Transformerless conversion topology
- DC switch, DC reverse-polarity protection and surge protection on both DC and AC sides
Published Specification Data
These figures come from the manufacturer datasheet for this model. Where a value you need is not listed, ask for the full datasheet rather than assuming a typical figure.
| Brand | Growatt |
|---|
Quality Control
- Serialised traceability from cell batch to finished unit
- Packing inspection and photo record before container loading
- Incoming inspection of cells, power electronics and structural parts before assembly
- Capacity and internal-resistance grading so cells within a pack are matched
- Full-function test on every finished unit, not a sample from the batch
Customization Options
- Customer branding on packaging and documentation
- Grid code and AC voltage configuration for the destination market
- Monitoring accessory selection - Wi-Fi, GPRS or RS485 to an existing logger
- DC connector type to match the array already specified
How It Compares With The Alternatives
| Separate PV inverter plus battery inverter | One conversion stage means one set of wiring, one monitoring platform and one warranty, at the cost of less freedom to mix brands later. |
|---|---|
| A microinverter array | String conversion costs less per kW at commercial scale; microinverters win on complex shading and per-module monitoring. |
| An oversized single inverter | Several MPP trackers serve differently oriented roof sections without splitting the array, so one unit covers what would otherwise need two. |
Getting This Product Right On Site
- 1
Verify the array string voltage against the MPPT window at the site's record low temperature
- 2
Select the grid code for the destination market before energising
- 3
Mount out of direct afternoon sun and leave the clearance the manual specifies for airflow
- 4
Commission the monitoring interface at the same visit, not as a follow-up trip
- 5
Record the firmware version so a later fleet update can be planned
Growatt MID 25/30/40KTL3 On Grid Inverter - Buyer Questions
Does the inverter support export limitation
What monitoring is included
What is the warranty term
How is the inverter packed and shipped
Which grid codes can this inverter be set to
Can this inverter work with batteries from another brand
Other Solar Inverters and PCS Models
Background For This Specification Decision
What each inverter type does, what it cannot do, and which one a grid connection application will accept.
Read the guide →Design GuideHigh Voltage vs Low Voltage Battery SystemsWhy the DC bus voltage choice shows up in your cable schedule, your inverter options and your installation labour.
Read the guide →ChecklistCommissioning Checklist For Commercial Solar and StorageThe checks that separate a system that works on the day from one that is still being argued about three months later.
Read the guide →Factories, warehouses, cold stores and commercial campuses where the electricity bill is driven as much by demand charges as by consumption.
See the application →Utility Scale and Grid Side ProjectsGrid-connected storage and generation projects where the equipment is assessed on certification, dispatch behaviour and long-term degradation.
See the application →Residential and Villa InstallationsHomes and villas adding solar self-consumption and backup, where the installer needs a kit that works the same way on every job.
See the application →Request A Quote For Growatt MID 25/30/40KTL3 On Grid Inverter
Tell us the quantity, the destination market and the application. We reply within 12 hours with lead time, certification and pricing.