ASHRAE Journal - June 2019 - 65

2019 ASHRAE TECHNOLOGY AWARD CASE STUDIES

well as VAV boxes and hundreds of control points.

Environmental Impact

Photo 1. Adjusting for real-time conditions in June, the shading system maximized
available daylight on the building's west side while preventing thermal discomfort at
south-facing windows.

much more often, as research has shown that occupants
do not open shades as readily as they close them, once
glare or thermal discomfort conditions cease.

Iterative energy analysis was used throughout the
project design phases to optimize the envelope, lighting
and mechanical systems to cost effectively reduce fossil fuel consumption and carbon footprint. The 385 kW
PV system on the roof offsets 24% of the building's
annual energy consumption and achieved all LEED EAc1
and EAc2 points, contributing to the building's LEED
Platinum certiﬁcation, Intuit's ﬁrst building to achieve
this certiﬁcation. The building achieves an Energy Star
rating of 96, resulting in a greenhouse gas emissions
reduction of 888 metric tons of CO2 over the average
peer building. This equates to removing 190 passenger
vehicles from the road or to planting 23,000 trees growing for 10 years.
Furthermore, the project achieved the Enhanced
Refrigerant Management credit (EAc4) by using R-134a
and R-410A refrigerants with zero ozone depletion
potential (ODP).

Operations and Maintenance
The project design team coordinated closely with
Intuit's facilities management team to weigh in on
important O&M factors. While the project does employ
several cutting-edge technologies, traditional boilers,
chillers, and air handlers are used for building conditioning. Very little special training or maintenance
routines are required, and throughout the M&V process, the facilities staff reports that the building is easily
maintainable.

Cost-Effectiveness
As cost is one of the primary drivers for any new
construction project, the design team worked
together to ﬁnd synergies in the design to meet the
owner's goals for the project while also delivering a
truly high-performance building. One of the most
prominent examples is the UFAD system. The owner
required the open ofﬁce spaces to be provided with
a raised ﬂooring system to allow ﬂexibility with
respect to space conﬁguration and routing of utilities
throughout the ﬂoor plate. This presented an opportunity to increase the depth of the raised ﬂoor to also
accommodate the air distribution system with only a
small increase in ﬁrst cost. This allowed the elimination of steel ductwork throughout the building, as
J U N E 2 0 19

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ASHRAE Journal - June 2019

Table of Contents for the Digital Edition of ASHRAE Journal - June 2019

Contents
ASHRAE Journal - June 2019 - Intro
ASHRAE Journal - June 2019 - Cover1
ASHRAE Journal - June 2019 - Cover2
ASHRAE Journal - June 2019 - 1
ASHRAE Journal - June 2019 - Contents
ASHRAE Journal - June 2019 - 3
ASHRAE Journal - June 2019 - 4
ASHRAE Journal - June 2019 - 5
ASHRAE Journal - June 2019 - 6
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ASHRAE Journal - June 2019 - Cover3
ASHRAE Journal - June 2019 - Cover4
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