I advise wanting to trim the trees if possible, but if not Microinverters or S/E with Optimisers function wonderful with some overshadowing. Solar panels operate by utilsing the ‘photovoltaic result’. This is certainly the method by which photons through the Sunlight project onto the solar panel, releasing electrons from atoms, https://citypointsolar.com.au/5-qualities-of-the-best-solar-installers-in-perth/