Xymax Reall Estate Instiitute

RESEARCCH REPOORTEnergy C
Consumpption andd Energyy Cost in Office Buuildings(March 22016)
The consumption is sligh
htly down. Th
he cost and tthe price per unit continue to decreasse.

Junne 3, 2016
6

Xymax Real Estate Institu
ute has beenn studying th
he energy coonsumption anda energy ccost of officee buildings inn
the Greater Tokyo area on a continuous basis. TThe report, which covers the resultss for the perriod between
nJanuary 2010
0 and Decem
mber 2015, wasw released in March this year. The latest report,, which coveers the results
for the perio
od ending Maarch 2016, is available noow.

Finding
gs from Reesearch■ Energy Consumptio
onon-year; a reccord low andd slightly belo
ow the level continued siince 2011.
2.8% down year-onit■ Energy Price per Un
nts down fro
om previous studys(Dec. 22015). The prrice started too fall in Marcch 2015.
5 poin■ Energy Cost
6 poin
nts down fro
om previous studys(Dec. 22015), decrea
ased in line withw the fallinng consumption and pricee.

1. Officee Buildin
ng Energy Consum
mption & Cost 122-Monthh Average
Figure 1 shoows the 12-m
month moving average off the energy consumption, price per uunit and cost. The energyy
price per unnit (dotted linne) kept falling since Ma rch 2015. Th
he energy consumption ((dashed line)) had a slightdecrease quarter-on-quaarter. The energy cost (soolid line) alsoo continued tot decrease rreflecting thee decrease ofothe price perr unit and coonsumption volume.
vFiggure 1: 12--Month Aveerage Energyy Consumption / Price / CostEnergy Consum
mption and Eneergy Cost in Offfice Buildings (March 2016)
All rights reserved. All the contents are as of the date of th
his report. Xymax Coorporation does not guaranteegthe accura
acy or completenesss of the information herein.
Copying, quoting, foorwarding, distributing, reprinting or any otherouse of this repo
ort is not allowed witthout prior permission from Xymax Corpooration.
Copyright © 2016 Xyymax Real Estate Insttitute Corporation. Alll rights reserved.

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RESEARCH
H REPORT
T｜Xymax Reeal Estate Innstitute

2. Montthly Enerrgy Consumptionn, Price perp Unit & Cost
Figure 2 shoows changes in energy coonsumption volume. Thee period betw
ween Januarry and Marchh 2016 was a
year-on-year decrease of 4.0 MJ/sqm
m. The consu mption volume is decrea
asing since 22014. This quarter marked
dthe record loow. This is likkely to have beenb
caused by the warmm winter arou
und the turn of the year from 2015 too2016.
Figuree 2: Energy C
Consumptioon (MJ/sqm//month)es in energy
y price per unit. The peeriod between January and March 2016 was a
Figure 3 shows change
MJ. This is con
nsidered larg
gely due to th
he decreasedd fuel adjustm
ment charges
year-on-year decrease of 0.35 yen/Mof electricity and gas starrted in April 2015.
er Unit (yen//MJ)
Fiigure 3: Eneergy Price pe

Energy Consum
mption and Eneergy Cost in Offfice Buildings (March 2016)
All rights reserved. All the contents are as of the date of th
his report. Xymax Co
orporation does not guaranteegthe accura
acy or completenesss of the information herein.
Copying, quoting, foorwarding, distributing, reprinting or any otherouse of this repo
ort is not allowed witthout prior permission from Xymax Corpooration.
Copyright © 2016 Xyymax Real Estate Insttitute Corporation. Alll rights reserved.

2RESEARCH
H REPORT
T｜Xymax Reeal Estate Innstitute

Figure 4 shoows changess in energy cost. The peeriod betwee
en January andaMarch 22016 was a year-on-year
decrease of 59.0 yen/sq
qm/month. TheT
cost starrted decreassing reflectinng the decreease of the consumption
nvolume and price per unit.
en/sqm/month)Figure 4: Eneergy Cost (yeEnergy Consum
mption and Eneergy Cost in Offfice Buildings (March 2016)
All rights reserved. All the contents are as of the date of thhis report. Xymax Coorporation does not guarantee
gthe accura
acy or completenesss of the information herein.
Copying, quoting, foorwarding, distributing, reprinting or any otherouse of this repo
ort is not allowed witthout prior permission from Xymax Corpooration.
Copyright © 2016 Xyymax Real Estate Insttitute Corporation. Alll rights reserved.

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RESEARCH REPORT｜Xymax Real Estate InstituteResearch Overview
PeriodApril 2009 – March 2016 (84 months)

Subject
Data

Of typical tenant-occupied office buildings in Greater Tokyo managed by Xymax Group, we obtained
valid data from approx. 100 buildings.
A. Monthly energy consumption, price per unit and cost
1) Gather the amount of consumption of and cost paid for (excl. tax) the electricity, gas, heat and oilin each building.
2) Convert the amounts of consumption in 1 to mega joule (MJ) (amount of primary energy) basedon the following coefficients, and add all the results.
Electricity: 9.76 MJ/kWhOpen Steam: 2.68 MJ/kg|

City Gas: 45 MJ/m3||

Cool/hot water, steam: 1.36 MJ/MJ

Bunker A: 39.1 MJ/L3)

Energy Consumption (MJ/sqm/month) Divide the total consumption calculated in 2 by the gross floor area (excluding vacant space).
Energy Price per Unit (Japanese yen/MJ)
 Divide the total cost calculated in 1 by the total consumption calculated in 2.
Energy Cost (Japanese yen/sqm/month) Divide the total cost calculated in 1 by the gross floor area (excluding vacant space)
4) Calculate the average of the three estimates in the preceding step.

How toCalculate

B. 12-month moving average
1) The figures for each month are the average consumption, price per unit and cost estimated in A forthe past 12 months.
2) Indexed based on December 2010 = 100
•

Notes

•

"Month" in this study is based on the date of the meter reading, which differs by building and by
the energy supplier.
To represent the continuity and accuracy of the data, the gross floor area excluding the vacant
space is applied in this study.

• For the previous report, please refer to Energy Consumption and Energy Cost in Office Building (December 2015) releasedon March 4, 2016.
• We reviewed the data and corrected some numbers in the previous release.

For questions on this report, please contact us.
Xymax Real Estate Institute
PHONE: +81 3 3596 1477 FAX: +81 3 3596 1478 info-rei@xymax.co.jp

Energy Consumption and Energy Cost in Office Buildings (March 2016)
All rights reserved. All the contents are as of the date of this report. Xymax Corporation does not guarantee the accuracy or completeness of the information herein.
Copying, quoting, forwarding, distributing, reprinting or any other use of this report is not allowed without prior permission from Xymax Corporation.
Copyright © 2016 Xymax Real Estate Institute Corporation. All rights reserved.

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