HOW is the lighting on the Silica to be powered? If not sustainably, is it not an outdated symbol of profligate power use before it is even built? A HEATH - Shrubbery Walk, Weston

HOW is the lighting on the Silica to be powered? If not sustainably, is it not an outdated symbol of profligate power use before it is even built?A HEATH - Shrubbery Walk, Weston