FoxESS Community - Owners & Installers Forum

My installation comprises 12 Hengdian 450 PV panels, Fox inverter and Fox IP12 battery.

Non-ideally (IMHO) the panels are split across two roof sections - 10 are situated on the main roof of our dwelling and 2 more on the roof out our garage. The garage roof is considerably lower than the main roof and hence subject to quite a bit of shading during the late afternoon, especially in the winter months. All of these panels are connected in one string which is connected to the inverter.

As stated above, there are times late in the day when the garage panels, due to their lower aspect, become shaded while the main roof panels are still well lit with the result that the overall output is dragged down (the effect on the real-time curve is like it falls off a cliff when this happens) so I am beginning to wonder if I could improve the situation by attaching optimizers to the two garage roof panels.

Is there any experience in the community with the use of partial fitments of optimizers? And more particularly which manufacturers? I'm wondering about TIGO optimizers.

Stupid idea? Genius at work? Do some homework? I'd would appreciate some feedback on this please.

Best regards,

Derrick.

Hi Derrick,

My 2p worth says that the cost of having scaffolding put up, panels removed to fit optimisers etc and refitted, would outweigh your savings.

Maybe see how it performs on a day of full sunshine at this time of year, and compare to others with similar output, or make adjustments. We have 14th Feb looking like a good candidate.