68 / 148
66
Hyprop Investments Limited
Integrated annual report and consolidated financial statements
2017
Natural capital:
Environmental impact
continued
We monitor bulk water consumption daily at centres to identify unusual
patterns that might indicate leaks.
Water measures
2017
2016 % change
Total consumption (kilolitres (k
ℓ
))
1 028 094
1 037 011
(0,85)
Average volume consumed per
hour worked (
ℓ
/h)
2 236
2 349
(4,8)
Target for consumption, or
reduction, against specific
denominator (
ℓ
/h)
2 350
2 398
(2,0)
Retail: k
ℓ
per occupied space (m
2
)
1,36
1,35
0,7
Office: k
ℓ
per occupied space (m
2
)
1,01
0,97
4,1
Total: k
ℓ
per occupied space (m
2
)
1,36
1,31
0,7
Water intensity
2017
2016
2015
Water use intensity
(k
ℓ
per occupied space (m
2
))
1,3
1,3
1,6
Recycling
Our approach to waste management aims to maximise recycling, minimise
disposal to land ll and comply with legislation. Tenants are regularly
informed of on-site waste management systems, and Canal Walk and
Clearwater Mall have public recycling stations. All centres have suitable
waste-segregation facilities.
For development projects, we adhere to applicable regulations and
consider best practice to optimise the environmental quality of our
construction sites. Waste generated by construction is disposed of
in line with responsible management plans.
In 2017, Hyprop recycled 79% (by volume) of total waste, up from 78% (by
volume) in 2016. While higher in percentage terms, lower group volumes
re ect greater individual recycling efforts from our tenants.
Waste
2017
2016
2015
Total non-hazardous waste
disposed (t)
3 963
5 646
6 165
Total hazardous waste disposed (t)
51
43
34
Total waste sent for recycling (t)
2 851
2 998
2 757
Waste sent for recycling (% t)
40,6
34,5
30,8
Recycling
2017
2016
2015
Number of loads ordered
7 689
7 293
6 790
Quantity of units collected (t)
64 769
68 166 64 240
Recycled (volume) (%)
79
78
75
Recycled (m
3
)
55 692
64 861
60 033
Current energy and carbon emission savings update
Initiative
Objective
Progress/current activities
At Clearwater Mall, phase 3 of the photovoltaic
plant increased capacity to 2 914kWp and is to be
commissioned September 2017 (kilowatt peak)
Reduce carbon emissions and reliance on the grid Total energy produced by phase 1 and 2 from
1 July 2016 to end April 2017 is 8 444GWh
Capital replacement programme
Ensures that capital equipment at the end of its
lifecycle is replaced with energy-efficient
equipment against specific criteria: non-ozone-
depleting refrigerant gas; reverse-cycle heating
instead of electrical elements; and performance
co-efficient 3,5 or better
All capital replacements are approved by the
national technical manager.
At Somerset Mall, three package units were
replaced in the review period using non-ozone-
depleting R410 refrigerant and a unit performance
co-efficient of 3,6. At Canal Walk, only half of
planned units (45 units) were replaced with R410
refrigerant and energy-efficient inverter units.
The balance was rolled over to FY18. At Hyde
Park Corner the Nu Metro wet condenser units
were replaced with dry condenser units ensuring
no water use by AC
Modify thermostat set points and supply
temperature for chiller water
Lower energy costs in winter and summer
Building management systems upgraded at
Woodlands Boulevard
Variable speed drives (VSDs) for heating,
ventilation and AC systems
Match speed to required output to reduce
consumption
VSD drives installed where practical
LED lighting and occupancy sensors
Improve lamp life and reduce required power
factor correction
LED lighting installed in parking area at Canal
Walk and open parking at Somerset Mall
Implement preventive maintenance programmes
on AC equipment
Ensure optimal operation of equipment
National service-level agreement signed with
third party for seven sites. Regional agreements
signed for Pretoria sites. Remaining sites have
signed agreements with local contractor or
agent. All sites now covered by service-level
agreements
Peak energy demand reduction (on the grid)
Reduce power consumption in peak periods
(premium tariff) and avoid expensive peaks,
reducing the cost of consumption
Solar PV at Clearwater has reduced peak demand
from 8 200kVA to under 7 000kVA. All power
factor units serviced under contract, reducing
kVA. Phase 3 should reduce kVA by another
800kVA.