The apartments in the Met are in effect houses in the sky with breezeway, full exposure to light and views, outdoor living areas, planters and high-rise gardens, and open-air communal terraces with barbeques, libraries, spas and other facilities
a daylighting-optimized fenestration design will increase system performance
to sense the available light and dim or turn off the electric lighting in response
light shelves, overhangs, horizontal louvers, vertical louvers, and dynamic tracking of reflecting systems.
Aperture location. Simple sidelighting strategies allow daylight to enter a space and can also serve to facilitate views and ventilation. Typically, the depth of daylight penetration is about two and one-half times the distance between the top of a window and the sill.
Integration with electric lighting controls. A successful daylighting design not only optimizes architectural features, but is also integrated with the electric lighting system. With advanced lighting controls, it is now possible to adjust the level of electric light when sufficient daylight is available. Three types of controls are commercially available:
Switching controls: on-and-off controls that simply turn the electric lights off when there is ample daylight.
Stepped controls: control individual lamps within a luminary to provide intermediate levels of electric lighting.
Dimming controls: continuously adjust electric lighting by modulating the power input to lamps to complement the illumination level provided by daylight.
Any of these control strategies can, and should, be integrated with a building management system to take advantage of the system's built-in control capacity. To take full advantage of available daylight and avoid dark zones, it is critical that the lighting designer plan lighting circuits and switching schemes in relation to fenestration. The following figure shows control scheme types.