North-facing rooftop solar panels rarely best for consumers – or for the grid

RENEW ECONOMY | A University of South Australia study has found that the nation-wide habit of facing rooftop PV panels to the north could be short-changing solar households – and adding to the “duck-curve” shaped problems of Australia’s increasingly solar saturated grids.


The study, by UniSA solar researcher Kirrilie Rowe and Associate Professor Peter Pudney, calculated the optimal self-consumption panel orientations for a community of 29 individual dwellings and a residential building with 42 apartments in Australia.


And what it revealed is that when it comes to solar self-consumption, optimal panel placement is rarely towards the equator.


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