WoolWorths holdings limited 2013 good BUsiness JoUrneY report

Case Study:
Solar Installation
At head office
This year, we installed 30 kWh
solar PV panels on the roof of
one of our Head Office buildings.
Consisting of 120 x 250 w
surface mounted solar PV panels,
manufactured by a South African
company based in Bellville, the
project comes on the back of
a number of energy efficiency
interventions we have tested
over the past few years. The
installation is estimated to save
48 000 kWh of energy per year
(enough energy to light up
3.2 million 15 w energy saving
light bulbs for one hour or power
8 average households each per
year) and reduce the buildings
emissions from electricity by
an estimated 49 tCO 2
annually.
It is closely monitored using our
metering online (MOL) system
and a screen has been mounted
at the building's entrance so staff
can see the amount of electricity
going through our system.
Even with the increasing cost
of electricity, we have seen the
return on investment period drop
significantly since the project
began. The installation currently
provides around 10% of the
building’s electricity needs.
This installation serves as a trial
for us. We have identified our
distribution centres as a medium
to long term opportunity for us
for bigger installations, but we
are busy looking at the right
opportunities within that space.