North slope is worthwhile if you want electricity in the summer. So long has you have enough area completely unshaded for enough hours.
Maybe one long row of panels tilted South, uphill.
I plan to put PV panels on a north facing roof slope. At my latitude, sun goes well past overhead in Summer.
Cost of PV panels and MPPT SCC channel is not high, compared to balance of system. An inverter/charger with batteries and generator would provide power in winter, more pleasant than operating generator 24/7, and PV saves you running generator when there is sun.
Is there flowing water? Even seasonal?