Spiral Solar Thermal

Traditionally Solar Thermal is trough about 100 yards long with a Fresnel lens focusing light to super heat a liquid. This heated liquid is stored and then used to heat water, creating stem and turning a generator to produce electricity.
The holding take holds the liquad through the night providing 24/7 power. There are also concentrated mirror types.

No imagine the top 10 floors of a high rise dedicated to solar thermal. Use a spiral design, the windows would be your lenses. Put the steam generator in the middle, even without an holding tank it would go a long way to offset energy costs.

Actually with the much smaller foot print, they could be used anywhere there is a little open space.