Solar Panel Swiss

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Definition · Equipment

MicroinverterIndividual inverter per panel — AC architecture

TL;DR

A microinverter converts DC to AC directly at each panel. Major advantage: shading one panel does not affect the others. Ideal for complex roofs. More expensive (+15-25%) but monitoring panel by panel. Leader: Enphase IQ8.

Definition

A microinverter is a small power inverter (200-600 W) installed under each solar panel. It converts direct current (DC) from the panel into alternating current (AC) directly, unlike the string inverter which manages an entire string of panels.

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CH market leader

Enphase IQ8

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Yield / module

95–96.5%

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Additional cost vs string

+15–25%

🛡️

Warranty

25 years

Technical explanation

In a microinverter architecture, each panel operates independently with its own MPPT. Shading a panel (chimney, tree, dirt) no longer reduces the production of other panels in the same string — each is optimized separately. DC→AC conversion at module level simplifies wiring (roof AC cables, simpler and less dangerous than high voltage DC cables). The efficiency per module is 95-96.5%, slightly lower than large string inverters (97-98.5%). Enphase Enlighten monitoring allows you to see the production of each panel individually — a powerful tool for detecting a failing panel.

Swiss context

In French-speaking Switzerland, Enphase is the undisputed leader in microinverters. Swiss roofs, often complex with dormer windows, chimneys and multiple orientations, are particularly suited to microinverters. For a simple south-facing roof without shading, a quality string inverter (Huawei, Fronius) remains more profitable in terms of gross ROI.

Related terms

String inverterPower OptimizerStringMPPT

Related guides

Enphase IQ8 Guide →

FAQs — Microinverter

Microinverter or power optimizer — which one to choose?+

Microinverter: DC→AC conversion at panel level, AC wiring on the roof, total panel independence. Optimizer: remains in DC up to the central inverter, individual optimization but still dependent on the string inverter. Both give good results on complex roofs.

Does the Enphase IQ8 work without a power grid?+

Yes, with IQ Battery batteries — the IQ8D (Enphase Secure Power) can create a self-contained power island. Without batteries, the IQ8 shuts down like any inverter in the event of a grid outage.

Sources & method

Check equipment values in the offered model’s datasheet and warranty terms. Confirm grant, permit and connection requirements with the responsible programme, municipality and grid operator.

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