Our analysis finds that 114 million square feet of New York City office space can easily accommodate comprehensive daylighting control retrofits to achieve electric peak demand reduction equivalent to 160 megawatts, as well as 340 gigawatt hours of electricity savings. Deployment of daylighting systems is an opportunity for New York City building owners and tenants to benefit from $70 million in energy cost savings each year.
“Peak demand” is the time during the day when the most energy is being used. It is also when energy costs the most to produce. Coincidentally, peak demand hours coincide with the times of day when sunlight is most readily available. Therefore, daylighting systems not only have the potential to save energy, but to also cut back on the dirtiest, least efficient energy being produced.