UNIVERSITY COLLEGE CORK
ANNUAL ENERGY REPORT
2010-2011
Buildings & Estates Office, UCC
Date: April 2012
CONTENTS
Executive Summary.........................................................................................3
Total Energy Breakdown..................................................................................5
Overview ............................................................................................................................5
Total Electricity Breakdown ..................................................................................................8
Total Natural Gas Breakdown............................................................................................. 11
Water Consumption ...................................................................................... 13
Energy Benchmarking ................................................................................... 14
Appendix A Energy Usage Analysis .............................................................. 15
2
Executive Summary
Total utilities cost (energy and water) for 10/11 is €4.877M, which is an increase of
1.7% on the previous year, driven primarily by the price increase of gas. There is a
reduction in electricity usage of 1.35% in comparison to 2009/10 with both Main
Campus and Lee Maltings showing volume and cost decreases in electricity. Gas prices
increase have been the dominant reason for an increase of 17% in the price paid for gas
usage. This is despite an increase in usage of less than 0.1%.
Total Utilities Cost
7,000,000
6,000,000
Cost (€)
5,000,000
4,000,000
3,000,000
2,000,000
1,000,000
0
cost (€)
08/09
09/10
10/11
5,743,696
4,794,945
4,877,583
(Analysis inc Western Gateway exc Mardyke Arena, Campus Accomm and CUH)
3
Energy usage and cost:

The total energy cost for 2010/11 was €4.6m which is a 1.9% increase on the
2009/10 cost, while the energy consumption has decreased by about 0.7% when
compared to the previous year.
Electricity usage decreased by 1.35% whilst gas usage increased by 0.1%
compared to 2009/10 but when degree day corrected for gas consumption this
increase becomes an increase of 4.1% despite the heating period in year
2010/11 being on average 0.5% slightly warmer than 2009/10 for the equivalent
period.
Total Energy Usage and Cost
60,000
6,000,000
50,000
5,000,000
40,000
4,000,000
30,000
3,000,000
20,000
2,000,000
10,000
1,000,000
0
Usage (MWh)
cost (€)
Cost (€)
Usage (MWh)

08/09
09/10
10/11
56,306
56,991
56,605
5,366,385
4,520,730
4,605,245
0
4
Total Energy Breakdown
Overview
The following graphs highlight the total usage & cost for both electricity & gas and also
the associated related CO2 emissions over the past 3 years at UCC.
Electricity cost at approximately €3.3m is a 3.2% decrease on 2009/10. This presents
a large 20% decrease in cost versus the 2008/09 total electricity cost with an associated
decrease in overall consumption of 2.0%.
Electricity Usage and Cost
35,000
4,500,000
4,000,000
30,000
3,500,000
25,000
20,000
2,500,000
15,000
2,000,000
Cost (€)
Usage (MWh)
3,000,000
1,500,000
10,000
1,000,000
5,000
0
Usage (MWh)
cost (€)
500,000
08/09
09/10
10/11
30,435
30,275
29,867
4,110,907
3,405,245
3,298,083
0
(Incl Western Gateway)
The above bar chart highlights that both usage and cost have decreased for 2010/2011
when compared to previous year.
5
Natural gas cost at approximately €1.307m is a 17% increase on the previous year’s
total with an increase in overall consumption of just 0.1%. The increase in consumption
is despite a warmer winter and decrease in degree days and driven mainly by an
increased consumption in Other Properties.
Natural Gas Usage and Cost
30,000
1,400,000
1,200,000
25,000
1,000,000
800,000
15,000
600,000
Cost (€)
Usage (MWh)
20,000
10,000
400,000
5,000
0
Usage (MWh)
cost (€)
200,000
08/09
09/10
10/11
25,871
26,716
26,738
1,255,478
1,115,485
1,307,162
0
(Incl Western Gateway)
The previous bar chart highlights that gas usage has increased slightly for 2010/2011
compared to the previous year
6
UCC Carbon Footprint for 2010/2011 amounted to 17,503t CO2. This highlights a
0.4% increase in total carbon emissions with respect to electricity and gas usage.
Overall, electricity emissions increased by 0.5% while gas emissions increased over the
year by 0.1%.The electricity from green suppliers is provides a substantial reduction in
UCC’s carbon footprint
Related CO2 Emissions
20,000
18,000
16,000
CO2 (t)
14,000
12,000
10,000
8,000
6,000
4,000
2,000
0
Electricity
08/09
09/10
10/11
12,215
12,495
12,556
Gas
4,786
4,942
4,947
Total Emission
17,002
17,438
17,503
Year
The above bar chart highlights that related CO2 emissions1 follow the patterns displayed
by both electricity and gas consumption.
1
Note: The CO2 emissions were calculated using emission factors of 185gCO2/kWh for natural gas,
538gCO2/kWh for grid sourced electricity and 70% of grid emissions for CHP power
7
Total Electricity Breakdown
The following graphs highlight the usage & cost breakdown for electricity and also the
associated electricity related CO2 emissions over the past 6 years at UCC.
Electricity Usage Breakdown
16,000
14,000
Usage (MWh)
12,000
10,000
8,000
6,000
4,000
2,000
0
Main Campus
Lee Maltings
Western
Gateway
Other Buildings
08/09
14,628
9,120
1,243
5,444
09/10
14,469
9,487
1,402
4,906
10/11
14,206
9,090
2,126
4,446
As can be seen from the above bar chart, all areas with the exception of Western
Gateway (note increased activity and floor area) recorded a decrease in electricity
consumption for 2010/2011 compared to the previous year.
8
Electricity Cost Breakdown
2,500,000
Cost (€)
2,000,000
1,500,000
1,000,000
500,000
0
Main Campus
Lee Maltings
Western
Gateway
Other Buildings
08/09
1,921,499
1,176,998
178,578
833,831
09/10
1,722,762
884,783
154,111
643,589
10/11
1,543,243
801,527
256,403
696,910
As can be seen from the above bar chart, electricity costs have increased both for
Western Gateway based on increased electricity consumption; and also due to Other
Buildings. Overall, total electricity costs reduced by 3.15%.
9
Main Campus electricity consumption (kWhrs/m2/annum) during 2010/11 decreased
by 1.5% despite a target of 5% against 2009/10.
Savings of 2% were achieved the previous year 2010/11 versus the base year 2009/10.
This builds on the cumulative savings of 5.1% that had been achieved by end 2009/10
against the base year 2007/08 as shown graphically below.
10
Total Natural Gas Breakdown
The following graphs highlight the usage & cost breakdown for natural gas and also the
associated gas related CO2 emissions over the past 3 years at UCC.
Gas Usage Breakdown
18,000
16,000
Usage (MWh)
14,000
12,000
10,000
8,000
6,000
4,000
2,000
0
Main Campus
Lee Maltings
Western
Gateway
Other Buildings
08/09
14,814
2,823
740
7,494
09/10
15,235
3,510
603
7,368
10/11
15,251
3,295
676
7,516
The above bar chart highlights that gas usage has increased for 2010/2011 for Other
Buidlings and Western Gateway compared to the previous year. Lee Maltings has seen a
large decrease. The consumption figures above are not degree day corrected.
11
Gas Cost Breakdown
900,000
800,000
700,000
Cost (€)
600,000
500,000
400,000
300,000
200,000
100,000
0
Main Campus
Lee Maltings
Western
Gateway
Other Buildings
08/09
681,921
134,652
36,155
402,751
09/10
665,198
119,464
21,145
309,679
10/11
765,999
162,247
29,273
349,643
As can be seen from the above bar chart, gas costs for 2010/11 have shown the effects
of increasing gas tariffs.
12
Water Consumption
Water usage decreased by 20% compared to previous year’s figures. This was
achieved due to continued monitoring usage and further implementation of water
conservation measures. Water cost has slightly decreased compared to previous year’s
figures.
Total Water (Main Campus & Other) Usage and Cost
180,000
500,000
160,000
400,000
120,000
Cost (€)
Usage (m3)
140,000
300,000
100,000
80,000
200,000
60,000
40,000
100,000
20,000
0
08/09
09/10
10/11
Total Water Usage (m3)
155,037
111,685
113,626
Total Water Cost (€)
377,311
274,215
272,338
0
13
Energy Benchmarking
Energy Benchmark (kWh/student)
The energy usage per student benchmark for UCC for this year stands at
3,304kWh/student. Degree day correcting this to compare against the base year gives a
DD corrected figure of 3,031kWh/student. This is in comparison to a degree day
corrected figure of 3,014kWh/student for 2009/10. UCC minus the Maltings gives
2,342kWh/student for 2010/11 as compared to 2,295kWh/student the previous year. A
summary of the benchmarking is given in the table below.
DDC Total UCC (excl
Maltings) (v base yr)
Total UCC
DDC Total UCC (v base yr)
Benchmark
kWh/pp
kWh/pp
kWh/pp
2010/11
2009/10
2008/09
3,304
3,339
3,493
3,031
3,014
3,248
2,342
2,295
2,534
14
Appendix A
Energy Usage Analysis
The graph below highlights the effective usage (per student) of electricity across the
campus and highlights the comparison of total electricity usage per student over the
past 3 years. These figures include the Maltings consumption which is very high in
comparison to other college areas. The trend indicates this key performance indicator
(KPI) is reducing year on year.
Electricity Usage per student 2008/09 - 2010/11
2,000.00
Total Electricity (kWh/FTE)
1,800.00
1,600.00
1,400.00
1,200.00
1,000.00
800.00
600.00
400.00
200.00
0.00
Main Campus
2008/2009
1,888.26
2009/2010
1,773.56
2010/2011
1,743.61
Diff 0910 v 1011
-1.69%
15
Electricity Usage per student 2008/09 - 2010/11
(Excluding The Maltings)
Total Electricity (kWh/FTE)
1,400.00
1,200.00
1,000.00
800.00
600.00
400.00
200.00
0.00
Main Campus
2008/2009
1,322.43
2009/2010
1,217.59
2010/2011
1,212.96
Diff 0910 v 1011
-0.38%
The above graph highlights the effective usage (per student) of electricity across the
campus exc. the Maltings.
16
The graph below highlights the effective usage (per student) of gas across the campus
and highlights the comparison of total gas usage per student over the past 3 years.
These figures include the Maltings consumption which is very high in comparison to
other college areas.
Gas Usage per student 2008/09 - 2010/11
1,800.00
Total Gas (kWh/FTE)
1,600.00
1,400.00
1,200.00
1,000.00
800.00
600.00
400.00
200.00
0.00
TOTAL GAS
2008/2009
1,605.08
2009/2010
1,565.64
2010/2011
1,560.89
Diff 0910 v 1011
-0.30%
Degree Day Corrected Gas Usage per student 2009/10 - 2010/11
1,600.00
Total Gas (kWh/FTE)
1,400.00
1,200.00
1,000.00
800.00
600.00
400.00
200.00
0.00
1
2008/2009 DDC
1,359.82
2009/2010 DDC
1,240.81
2010/2011 DDC
1,287.42
Diff 0910 v 1011
3.76%
Note: above years have been degree day corrected against base year 2006/07 for
comparative purposes.
The graph above highlights the effective usage (per student) of gas across the campus
and highlights the comparison of total gas usage over the past 2 years.
17
Gas Usage per student 2008/09 - 2010/11
(Excluding The Maltings)
1,600.00
Total Gas (kWh/FTE)
1,400.00
1,200.00
1,000.00
800.00
600.00
400.00
200.00
0.00
TOTAL GAS
2008/2009
1,429.93
2009/2010
1,359.94
2010/2011
1,368.53
Diff 0910 v 1011
0.63%
The above graph highlights the effective usage (per student) of gas across the campus
when removing the Maltings.
18