One inverter per panel, and one shaded panel stops costing the others
A micro-inverter sits behind one or two panels and turns their direct current into mains alternating current on the spot, instead of sending everything to a single large inverter. The advantage is written into its architecture: with independent MPPT channels, a panel in shade drops only its own output, where a string wired through one tracker drags its neighbours down with it. Rated output in watts is the cap, and in several markets it is also the legal limit for a plug-in installation, which is why so many units on this shelf are rated at the same figure. Each input publishes a maximum panel wattage and a voltage window; panels above the window are refused, panels below it waste the channel. Grid standards are not decoration here — an inverter has to be certified for the grid it is plugged into, and the norms differ between countries; the certification a maker lists is a specification like any other. Monitoring comes by power-line signalling, Wi-Fi or a separate gateway, and whether it costs extra is part of the price. Then the ingress rating, because this device lives outdoors under a panel, and the warranty length, which on this shelf is measured in years and sometimes reaches a decade. We compare rated output, inputs and their limits, MPPT channels, certified grid standards, monitoring, ingress rating and warranty.
800 W rated AC · 2 inputs · limits not published · 2 independent MPPT · grid standard not named · WiFi 2.4 GHz · IP67 · warranty not stated
An 800 W micro-inverter with two independent MPPT inputs, a stated peak efficiency of 96.5 % and MPPT efficiency above 99 %, in an IP67 fanless housing.
Best for: A buyer who already knows their panels suit the unit and wants the DEYE at the lowest price.
≈ €64
800 W · 2 independent MPPT at 400 W each · limits not published · 2 MPPT · VDE and EMC certified · app monitoring · IP67 · warranty not stated
An 800 W grid-tied micro-inverter with two 400 W MPPT channels, VDE and EMC certification, lightning protection and an 800 V supercapacitor, at a stated 96 % conversion efficiency.
Best for: A two-panel installation where each panel is around 400 W and the per-channel limit is the deciding figure.
800 W · 2 MPPT inputs · limits not published · MPPT efficiency 99.8 %, peak 96.5 % · grid standard not named · monitoring not described · IP67 · MC4 plug and play
An 800 W micro-inverter with two independent MPPT channels quoted at 99.8 % tracking efficiency and 96.5 % peak conversion, with MC4 connectors and IP67 protection.
Best for: A straightforward two-panel balcony where monitoring is not wanted and MC4 is what the panels have.
≈ €90
800 W maximum output at 230 V · 2 inputs · limits not published · 2 MPPT · grid standard not named · Bluetooth and WiFi · IP67 · warranty not stated
An 800 W micro-inverter supplied with a 5 m Schuko lead, rated IP67, with two MPPT inputs and both Bluetooth and WiFi monitoring.
Best for: A buyer who wants the lead in the box and will get the datasheet from Marstek separately.
≈ €87
800 W · 2 panel inputs · limits not published · 2 MPPT · grid standard not named · WiFi with the EcoFlow app · ingress rating not published · 15-year manufacturer warranty
An 800 W EcoFlow Stream micro-inverter for two panels with WiFi monitoring through the EcoFlow application and a stated fifteen-year manufacturer warranty.
Best for: A balcony already using EcoFlow equipment, where one application covers the inverter and the battery.
≈ €110
800 W · 2 PV modules · 6000 V surge protection · 2 MPPT at 99.8 % · VDE conform · integrated WiFi DTU · IP67 (NEMA 6) · warranty not stated
An 800 W Hoymiles micro-inverter for two modules with an integrated WiFi data unit, 6000 V surge protection, an IP67 NEMA 6 housing and stated VDE conformity.
Best for: A German or Austrian balcony where VDE conformity is the deciding line, and the 5 m cable is wanted in the box.
≈ €120
800 W maximum output · 2 input channels · 16–60 V operating, 60 V maximum, 2 × 20 A maximum input · 2 independent MPPT · VDE certified with an integrated relay · WiFi and Bluetooth · ingress rating not published · warranty not stated
An 800 W APsystems micro-inverter and the only one in this family to publish its input window: 28 to 45 V at the maximum power point, 16 to 60 V operating, 60 V maximum.
Best for: Anyone who wants to check their panels against the inverter before buying either.
≈ €126
A price quoted in the text of a PowerVerdict page dates from the day that page was written; the live figure beside each product is fetched while you read and replaces it.
