Julia Bryan-Wilson at Cabinet Magazine:
The heliostats will reflect the sun’s rays onto a tall, mirror-covered tower to be set in the center of town. In turn, the tower will deflect the light onto other mirrors mounted on building facades, diffusing the beams to prevent dangerously focused, scorching rays. The mirrors will not drench the town in an even, blinding glare; this is no movie set where, with the flip of a switch and a dozen flood bulbs, night dazzlingly becomes day. (Such broad, total illumination would require impossibly enormous mirrors.) Instead, light will cascade down to create areas of illumination, or “hotspots.” Preliminary sketches reveal a pleasantly dappled effect, not unlike the sun-speckled lanes of Thomas Kinkade paintings. These bright spots, however, will be about “lawn size,” large enough for people to cluster inside, like fish schooling in shimmering pools of sunshine.
more here.