Growatt 40 Kwatt, 3 Phase On-Grid Solar Power Inverter

The Growatt 40kW 3-Phase On-Grid Solar Inverter is a commercial-grade grid-tied unit with dual MPP tracking, an IP65 industrial protection rating, and integrated DC and AC surge protection, built for commercial and industrial rooftops.

An on grid solar system is the simplest configuration in solar and the shortest payback. No batteries, nothing to replace in five years, nothing to maintain. This growatt solar inverter converts the DC from your panels into AC, powers your load through the day, and exports the surplus through net metering so your meter runs backward the credit offsets your night and weekend consumption. For a factory, warehouse, school, or office block with strong daytime load, a grid-tied system at 40kW turns a large roof into the shortest-payback asset on the balance sheet.

Built for commercial installation conditions. This is a transformerless, compact unit rated to IP65 the industrial protection class that lets it mount outdoors, exposed to dust and rain, without an enclosure. It carries Type II DC and AC surge protection devices (SPDs) built in, along with string fuses and string-level monitoring, so a fault in one string is isolated and flagged rather than silently dragging down the array. For a commercial operator, that string monitoring is what turns a rooftop into a managed asset instead of a black box.

Dual MPP tracking and grid support. Two independent MPP trackers let each string generate at its own maximum across a roof that faces multiple directions or catches partial shade through the day. The unit synchronises across a wide voltage and frequency range, supports export limitation for sites that need to cap what they feed back to the grid, and includes an anti-PID function that protects long-term panel performance. Optional GPRS/Wi-Fi remote monitoring and weather monitoring are available for operators who want live plant data.

Efficiency. MPPT tracking efficiency exceeds 99.5%, meaning the inverter finds and holds the optimal power point of your array almost perfectly. 

Sizing it correctly. A 40kW inverter suits roughly a 40–52kW panel array depending on your DC-to-AC ratio and roof orientation. Undersize it and you clip generation on peak days. Oversize it and you have paid for headroom you never use. Send our team your panel count, wattage and roof layout and we will confirm 40kW is right, or point you to the 25kW or 50kW.

SolarClue is India's managed solar marketplace. Our team confirms this inverter matches your panel array, your three-phase supply and your DISCOM's net metering requirements before you order. Compare it against Deye's 40kW on our platform we will tell you which suits your roof, not which we are holding. You book with a token payment rather than the full amount upfront. Supply and installation are coordinated through verified partners, and we handle Growatt warranty support afterwards. Check the current growatt inverter price and on grid solar system price, and talk to our team for a specification review and installation timeline in your city.