Solar columns are now a viable option. Priess columns have been tested and installed in northern countries with limited day light sun.
They are especially successful when combined with motion detection sensors and dimming.
Oxford city council installed columns at two locations. A country bus stop and a ramblers right of way above a series of steps.
These Priess columns contain a sim card through which the columns can be activated and read.
Priess solar columns can be with battery and cabling or without cables. An optional centrifugal fan is available.
Full details on request.