ASHRAE Journal - October 2024 - 51
2024 ASHRAE TECHNOLOGY AWARDS CASE STUDY
From 2014-2022, the owner reduced the total annual
energy consumption by an impressive 60.7%, from an
EUI of 89 kBtu/ft2·yr (1011 MJ/m2·yr) to 35 kBtu/ft2·yr
(397.5 MJ/m2·yr) (Figure 1). The reduction in consumption
has saved the owner $4.5 million in utility costs
since 2014. In addition, planning operational tweaks
and retrofits well before equipment end-of-life or
emergencies allowed those costs to be built into the
capital budget.
ENVIRONMENTAL IMPACT
After a commercial building is constructed, its most
significant environmental impact is its operational
carbon footprint. On average, the Tower's energy
consumption has been 58% natural gas and 42%
electricity. While many new buildings attempt to
minimize this footprint by going all-electric and
installing solar panels to generate clean electricity, in an
existing building like 157 Berkeley Tower, the original
design was not all-electric.
In cases where the equipment is reaching its end of
FIGURE 1 Building EUI comparison.
100
80
60
40
20
89
35
2014
2022
life, it makes sense to retrofit to all electric. However,
at just ten years old, this equipment is not yet at the
end of its life.
Instead, Liberty Mutual has focused on reducing
overall energy consumption to reduce operational
carbon, with a consistent downward trend from
2014-2021. During 2020-2021, there was decreased
occupancy due to COVID-19, which explains why
the 2022 footprint, at 1,697 tons of carbon dioxide
equivalent (MTCO2e), is slightly higher than 2021's
1,378 MTCO2e footprint. However, all three years are still
consistently lower than 2013-2019.
Standard and Custom Rotors
with Energy Recovery
Technology
info@rotorsource.com | www.rotorsource.com
Call or email us for a quote today!
877-768-6771
O CTO B E R 2 0 2 4 ashrae.org ASHRAE JOURNAL
51
EUI (kBtu/ft2·yr)
http://www.schortridge.com
http://www.rotorsource.com
http://www.ashrae.org
ASHRAE Journal - October 2024
Table of Contents for the Digital Edition of ASHRAE Journal - October 2024
Contents
ASHRAE Journal - October 2024 - Intro
ASHRAE Journal - October 2024 - Cover1
ASHRAE Journal - October 2024 - Cover2
ASHRAE Journal - October 2024 - 1
ASHRAE Journal - October 2024 - Contents
ASHRAE Journal - October 2024 - 3
ASHRAE Journal - October 2024 - 4
ASHRAE Journal - October 2024 - 5
ASHRAE Journal - October 2024 - 6
ASHRAE Journal - October 2024 - 7
ASHRAE Journal - October 2024 - 8
ASHRAE Journal - October 2024 - 9
ASHRAE Journal - October 2024 - 10
ASHRAE Journal - October 2024 - 11
ASHRAE Journal - October 2024 - 12
ASHRAE Journal - October 2024 - 13
ASHRAE Journal - October 2024 - 14
ASHRAE Journal - October 2024 - 15
ASHRAE Journal - October 2024 - 16
ASHRAE Journal - October 2024 - 17
ASHRAE Journal - October 2024 - 18
ASHRAE Journal - October 2024 - 19
ASHRAE Journal - October 2024 - 20
ASHRAE Journal - October 2024 - 21
ASHRAE Journal - October 2024 - 22
ASHRAE Journal - October 2024 - 23
ASHRAE Journal - October 2024 - 24
ASHRAE Journal - October 2024 - 25
ASHRAE Journal - October 2024 - 26
ASHRAE Journal - October 2024 - 27
ASHRAE Journal - October 2024 - 28
ASHRAE Journal - October 2024 - 29
ASHRAE Journal - October 2024 - 30
ASHRAE Journal - October 2024 - 31
ASHRAE Journal - October 2024 - 32
ASHRAE Journal - October 2024 - 33
ASHRAE Journal - October 2024 - 34
ASHRAE Journal - October 2024 - 35
ASHRAE Journal - October 2024 - 36
ASHRAE Journal - October 2024 - 37
ASHRAE Journal - October 2024 - 38
ASHRAE Journal - October 2024 - 39
ASHRAE Journal - October 2024 - 40
ASHRAE Journal - October 2024 - 41
ASHRAE Journal - October 2024 - 42
ASHRAE Journal - October 2024 - 43
ASHRAE Journal - October 2024 - 44
ASHRAE Journal - October 2024 - 45
ASHRAE Journal - October 2024 - 46
ASHRAE Journal - October 2024 - 47
ASHRAE Journal - October 2024 - 48
ASHRAE Journal - October 2024 - 49
ASHRAE Journal - October 2024 - 50
ASHRAE Journal - October 2024 - 51
ASHRAE Journal - October 2024 - 52
ASHRAE Journal - October 2024 - 53
ASHRAE Journal - October 2024 - 54
ASHRAE Journal - October 2024 - 55
ASHRAE Journal - October 2024 - 56
ASHRAE Journal - October 2024 - HR1
ASHRAE Journal - October 2024 - HR2
ASHRAE Journal - October 2024 - HR3
ASHRAE Journal - October 2024 - HR4
ASHRAE Journal - October 2024 - HR5
ASHRAE Journal - October 2024 - HR6
ASHRAE Journal - October 2024 - HR7
ASHRAE Journal - October 2024 - HR8
ASHRAE Journal - October 2024 - HR9
ASHRAE Journal - October 2024 - HR10
ASHRAE Journal - October 2024 - HR11
ASHRAE Journal - October 2024 - HR12
ASHRAE Journal - October 2024 - HR13
ASHRAE Journal - October 2024 - HR14
ASHRAE Journal - October 2024 - HR15
ASHRAE Journal - October 2024 - HR16
ASHRAE Journal - October 2024 - HR17
ASHRAE Journal - October 2024 - HR18
ASHRAE Journal - October 2024 - HR19
ASHRAE Journal - October 2024 - HR20
ASHRAE Journal - October 2024 - 57
ASHRAE Journal - October 2024 - 58
ASHRAE Journal - October 2024 - 59
ASHRAE Journal - October 2024 - 60
ASHRAE Journal - October 2024 - 61
ASHRAE Journal - October 2024 - 62
ASHRAE Journal - October 2024 - 63
ASHRAE Journal - October 2024 - 64
ASHRAE Journal - October 2024 - 65
ASHRAE Journal - October 2024 - 66
ASHRAE Journal - October 2024 - 67
ASHRAE Journal - October 2024 - 68
ASHRAE Journal - October 2024 - 69
ASHRAE Journal - October 2024 - 70
ASHRAE Journal - October 2024 - 71
ASHRAE Journal - October 2024 - 72
ASHRAE Journal - October 2024 - Cover3
ASHRAE Journal - October 2024 - Cover4
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2024november_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2024november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_BDMHLG
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_WJDGRY
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ATMAHK
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_VHQRAW
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XGMDXI
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_YELQLJ
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QJLWMC
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_MCDEBX
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_WNYSQY
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XATVOD
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_FJSHSS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_CCBZDS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XDEFVG
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2023november_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2023november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_VHGNBL
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_WPKBNJ
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_UUVCDE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RTGDEW
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2023
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_LKRFXS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_AZSOFG
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ERCDBH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QWDFRV
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JHGVDF
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OPUYHG
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SREIBM
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_LRTGLK
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OKRFGH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2022november_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2022november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_TZSERA
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_LVRUIX
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RPTVYZ
https://www.nxtbook.com/nxtbooks/ashrae/mini_pub_catalog
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XIYTGD
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2022
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RFGDOB
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_PABXNU
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_REMKLS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_PICVBT
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_AOYTVW
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JQOPLS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_IOYTBC
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SGAJJF
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_IGHYER
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_PDRKLS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2021november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2021november_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XCODFR
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QSLFGO
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ILKVNM
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2021
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OPDJKD
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_VJKSRY
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SDHUTC
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JPPKRR
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SDLTTH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_CKLLES
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SLDOX
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_HJETUK
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OLUHGE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2020october
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2020october_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ZERDGH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QVMNEO
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RTPOKE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_BBATRE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_STUBMW
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_TPEMPE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JNMKDS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_FBTTPA
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_WQMMNE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_TVBRYN
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_showguide2020
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_KTUZMA
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ABEDGD
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201910
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201909
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2019septmeber_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2019september
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201908
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201907
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201906
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201905
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201904
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2019april
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201903
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2019march
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201902
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201901
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_showguide2019
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2018december
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2018november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2018fall_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2018fall
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2018october
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2018
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201810
https://www.nxtbook.com/nxtbooks/ashrae/ashraeinsights_201806
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201805
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201804
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201803
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201712
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201711
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201710
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2017fall_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2017fall
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201709
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201705
https://www.nxtbook.com/nxtbooks/ashrae/ashrae_meetinginsert_201610
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2016fall_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2016fall
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_acrexindia
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2015summer_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2015summer
https://www.nxtbook.com/nxtbooks/amca/2014summer2
https://www.nxtbook.com/nxtbooks/amca/2014summer
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_acma_2014summer
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201311
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201309
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_acmasupp_2013fall
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201305
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201303
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2013winter
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201211
https://www.nxtbook.com/nxtbooks/ashrae/achr_expo_mexico2012
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201209
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201208_v3
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201208_v2
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2012summer
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201205
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201203
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2012winter
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201111_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201109_v2
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2011summer
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201105
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201103
https://www.nxtbookmedia.com