String Solar Inverter (On-Grid)

Grid-tied inverters that convert DC from several PV strings into AC for the building and the grid.

Rating: 1.5–15 kW
Versions: Single-phase 1.5–6 kW · three-phase 4–15 kW

Best for: Grid-connected rooftop systems without batteries, or with AC-coupled storage.

Single- and three-phase versions
Multiple MPPT inputs for mixed roof faces
Wi-Fi monitoring
Can be AC-coupled to a battery system later

String inverters are the standard choice for grid-connected rooftops. Each one takes several strings of modules, tracks their maximum power point and feeds AC into the building.

Our on-grid range

Single-phase, 1.5 to 6 kW — homes and small shops.
Three-phase, 4 to 15 kW — larger homes, offices and small commercial roofs.

For bigger roofs several inverters run in parallel. If you want backup power during outages, a hybrid inverter is the better choice; a string inverter shuts down when the grid fails, as grid codes require.

Grid compliance

Utilities set their own connection rules. Tell us the country and utility and we confirm the inverter’s grid settings and certificates before you order.

Common configurations

Single-phase
Three-phase
Multiple MPPT inputs

What we confirm before quoting

Our engineers check these points with you, so the quotation fits your site rather than a catalogue default.

1Rated AC power
2MPPT voltage range and number of inputs
3String voltage and current
4Grid code of your utility
5Ingress protection for the mounting location

Frequently asked questions

Can I add a battery later?

Yes — either by AC-coupling a battery system with its own inverter, or by replacing the string inverter with a hybrid unit. We can plan for it from the start.

How many inverters does my roof need?

Divide the array power by a sensible inverter rating, then check that each MPPT input gets strings of the right voltage. Mixed roof directions usually go on separate MPPT inputs.

Can I monitor the inverter on my phone?

Yes, through Wi-Fi monitoring and the app. Installers can also see the system to help with faults.

What documents come with a solar equipment order?

Commercial invoice, packing list, bill of lading, the datasheet of each item and the certificates you asked for at quotation stage. Certificates of origin or inspection reports can be added when your importer needs them.

How is warranty handled for buyers outside China?

Warranty terms are written into the quotation for each product. Claims start with photos, serial numbers and monitoring data; replacement parts are shipped from China, so we recommend keeping a small spares stock on larger projects.

Get a quote for the String Solar Inverter (On-Grid)

Tell us the application, location and target power or energy. Our engineers reply with a matched configuration and quotation.

sales@greenxpower.com

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