Heritage Motor Centre
Sustainability
Assessments
Total Energy Costs
3
1
5
Introduction
Purchase of new LED lights will
also have a direct effect on the kWh
usage for the HMC. Even though
the change is fairly obvious when
considering that during the new
lights will only be operating at
100W. Having said that, the graph
below shows the effect on the total
kWh usage of the site.
After the first 4 years (recouping outlay) it
is estimated that the total energy costs for
the HMC will be reduced significantly as it is
shown in the graph below.
The Heritage Motor Centre is keen to, and has the
potential to, engage in a variety of more sustainable
and cost-saving changes in the near future. These
range from low to high cost infrastructural changes.
One of larger changes recommended by the recent
Ecological Assessments would be the replacement of
current lighting with more environmentally friendly
lights which operate at lower wattage.
8000.0
119160
7000.0
Currently the lights under consideration are operating
at 400W whilst the proposed lights only use 100W
Here is an estimate of the accumulated savings for
the HMC for 11.2 years which is the expected
installation lifetime, the kWh usage and energy
costs for the site per year. Capital expenses and
maintenance costs have also been considered in the
calculations.
6000.0
5000.0
120000
101388
4000.0
100000
3000.0
117640
2000.0
80000
1000.0
60000
0.0
2
Usage in kWh
Accumulated Savings
over 11 years
Current energy cost per
annum (£)
40000
Proposed energy cost per
annum (£)
Energy Costs
20000
50000.0
0
45736.1
39525.7
25347
Base Year
4
CO2 Emissions
After Changes
kWh
40000.0
33315.3
30000.0
27105.0
CO2 emissions follow a similar pattern as
energy costs.
It is estimated that the new lights which will
operate at significantly lower kWh will
manage to reduce the emissions by more
than
39 tonnes per year.
20894.6
20000.0
14684.2
8473.9
10000.0
2263.5
0.0
Year 1
Year 2
Year 3
Year 4
Year 5
Year 6
Year 7
Year 8
Year 9 Year 10 Year 11
60000.0
53190.2
-3946.9
50000.0
-10000.0
-10157.3
40000.0
6
Comments
The figures are based on estimates
provided by the Edmudson Electrical
and Harry Smith. They calculated that
the purchase of the new lights will
cost £22587 and it will save 75% of
energy usage per year. As a result,
these numbers should be considered
with caution.
-16367.6
30000.0
-20000.0
Expected whole-of-life savings
13297.5
20000.0
10000.0
Repayment on capital outlay will take appx 3.6
years with overall savings of appx £45,736 on
energy bills (at current rate) over an 11 year
period.
0.0
This is only one change out of
numerous other potential projects
HMC could be involved with.
Combining all of them would make a
truly significant change.
Base Year
After Changes
CO2 Emissions
This figure is a good estimate of the investment’s
rate of return and projected savings but will of
course vary according to the many other
variables involved in such a large project.
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