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The new 14-story, 221,830-square-foot administration building of
the San Francisco Public Utilities Commission (SF PUC) will be built
at 525 Golden Gate Avenue in the city's Civic Center area. The SF
PUC has made a commitment to incorporate the principles of sustainable
design in its building, one of the City's first LEED projects, and
the project has been designed to achieve LEED Platinum, the highest
rating. This project will set a precedent for all future municipal
design and construction projects in San Francisco.
The project's design features include a highly efficient exterior
building enclosure including exterior sun shades, natural ventilation
with the use of operable windows, reduced lighting power densities
through space planning, and solar and wind harvesting to meet a
significant portion of the building's energy demand. A photovoltaic
system is integrated into the building design to provide power,
reduce heat loads on the higher floors, and serve as a work of art.
Solar panels will be embedded in portions of the façade,
and solar greenhouses are included on every floor to represent San
Francisco's natural soil and vegetation conditions at the corresponding
elevation. Wind turbines will be stacked behind glass along part
of the façade and on the roof. Great emphasis was also placed
on harnessing natural daylight, where appropriate, to reduce the
electrical lighting load needed for the building. To maximize daylight
from the perimeter glazing, light shelves were integrated into the
window walls. In addition, waterless urinals, faucet sensors, and
on-demand water heaters will be used so that each occupant's water
usage should only be five gallons per day; and wastewater will be
recycled through basement filters, then put to use in toilets and
the cooling system.
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