Watts per square foot

Watts per square foot

A shorthand measure of the energy use of a building, often applied to indoor lighting. Energy codes often limit the watts per square foot based on building type and function.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
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Cyberverse's data center infrastructure efficiently handles both its clients' standard and dynamic workloads with flexible rack densities of up to 50 kW, or 1000 watts per square foot, enabling customers to deploy computational applications without latency or disruption.
ViaWest offers super high power density capabilities exceeding 1,500 watts per square foot and Power Usage Effectiveness ratings of 1.3 at its newest data centers, including the Brookwood Data Center.
The complete building method covers the entire facility and assigns allowed lighting power density by building type; many retain the same LPD assigned in the 2013 version, but some (including auditoriums, convention centers and libraries) lost 0.10.2 watts per square foot.
Monocrystalline PV modules were the first on the market and are still the most efficient--more Watts per square foot.
Load was typically classified on a "watts per square foot basis," but that could be very misleading due to a great variation in IT equipment footprint and equipment density within a given space.
This is largely due to the density in terms of watts per square foot generated by the 1,184 solar panels.
An initial laboratory equipment estimate of 1.5 watts per square foot was calculated and in collaboration with the mechanical consultant and owner, the design team decided to both double the load and add a safety factor on top to come up with a final equipment load of 3.5 watts per square foot, which was then used in the preliminary analysis.
Lumens per watt and watts per square foot are now extensively employed in lighting related public policies.
The property can accommodate approximately 31,500 s/f of raised data floor space with more than 150 watts per square foot, 7,440 s/f of segregated office space and in excess of 150 parking spots.
HPS power draw for 400-watt bulbs amounts to 464 watts, or .58 watts per square foot, whereas the draw for 100-watt LEDs will be only.
<p>To meet increasing demand for power in data centers, the facility is designed to provide 150 Watts per square foot average, a significant boost to the 60 Watts per square foot specification widely used a few years ago.
However, if you intend to use most of the surface area of the shelves, two lights are required to provide the recommended 25-30 watts per square foot.