Solar power assemblies are installed all over the world for lighting and power configurations. Solar sized properly can be installed in almost any location. Solar installations inside the Sun Belt are more efficient and require much less power since there is more available sun as well as shorter nights, but that does not mean that solar cannot be used outside the Sun Belt.
Inside and outside the Sun Belt, solar lighting and power systems should always be sized accordingly. Inside the Sun Belt, more power can be achieved using the same solar power assembly northern areas would need for a much lower power draw.
For example, in the Sun Belt, a 50 Watt power draw would only need a single 200 Watt solar give or take to operate all night, whereas in the norther areas, this same system would be almost twice that size. The reason behind this is the nights are longer and the sun is less.
If more power is required, alternative methods of operation are looked into such as adaptive lighting, where the systems operate a full for a set period of time and then reduce when the area is no longer active. Another great way to reduce power is to operate using split time or just dusk activated for a set number of hours.
Solar operation profiles are a great way to narrow down how the lights can operate in different locations. Solar lighting systems have many ways to adapt to each individual project and power applications can operate up to 24/7/365 depending on the needs of the device. One of the best things about solar is the ability to adapt to the project and location, even in locations far outside the Sun Belt.