ASHRAE Journal - July 2019 - 44

2019

ASHRAE TECHNOLOGY AWARD CASE STUDIES

TABLE 1 Impacts of the project on the energy consumption profile.

Adjusted
Reference
Year*

July 2017-June 2018
Performance Year

%
Reduction

Electricity Consumption

59,786,333 kWh

45,730,559 kWh

23.5%

Average Monthly Peak Demand

10,556 kW

7,431 kW

29.6%

Natural Gas

3 852 813 m3

1 900 062 m3

50.6%

Combined Electricity and Gas

360 804 GJ

236 617 GJ

34.6%

*According to Cooling/Heating Degree-Days

$600,000

Reference Year

2017 - 2018

$500,000
$400,000
$300,000
$200,000
$100,000
$0

Results-Driven Approach
Jan

Feb

Mar

Apr

May

Jun

FIGURE 2 Energy bill reduction.

44

boilers were converted to hot water
boilers, rather than replaced, and
over 5,000 ft (1524 m) of 6 in. to 12
in. (152 mm to 305 mm) steam piping was reused for hot water after
careful inspection.
Major water savings were achieved
through the modernization of the
chilled water plant and cooling
towers, which reduced the amount
of water in the tanks by 99%. The
older cooling tower was designed
for 730,000 gallons (2.8 million L)
of water storage, while the new
system requires only 6,700 gallons
(25 362 L).

ASHRAE JOURNAL

ashrae.org

J U LY 2 0 19

Jul

Aug

Sep

Oct

Nov

Dec

The Olympic Park's decision to
address their retrofit needs through
a single integrated project effectively
turned their asset renewal backlog into an investment opportunity for cost-effective upgrades with farreaching effects on sustainability, operability and user
experience.
The project not only met the Olympic Park's pressing
need for modernized equipment, it did so in less than
half the time they had initially forecasted for conventional equipment replacement projects.
The total project cost of $22.7 million is paid for
with $3.3 million of guaranteed financial incentives,
$6.5 million from the Olympic Park's asset renewal
budget (instead of $20 million to implement separate
one-for-one equipment replacement projects), and
$1.3 million in guaranteed annual savings. The first
year of performance monitoring has shown the annual
savings are well above target, reaching $1.55 million.
Combined with higher financial incentives than were
contractually guaranteed, this is expected to bring the
project's simple payback period from 11 years down to
only eight years.
Choosing a performance contracting approach with
guaranteed results ensured the Olympic Park's outcomes
would be achieved on time and on-budget. The selected
design-build firm and the Olympic Park formed a highly
collaborative relationship to meet, and even exceed, the
project's performance targets.



http://www.shortridge.com https://www.ashrae.org/

ASHRAE Journal - July 2019

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

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