How LED lighting helped Forth Ports win as Edinburgh's greenest company.

1. LED lighting helps Forth Ports win
green award

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DialightLED lighting helps Forth Ports win green award

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DialightLED lighting helps Forth Ports win green award
Port of Leith, Edinburgh
In March 2013 Forth Ports was named Edinburgh’s greenest company in awards that recognise the
city’s best businesses. Lighting innovations at Leith docks were among the initiatives that helped the UK
port operator clinch the prize at the Edinburgh Chamber of Commerce Business Awards. There was
more to the lighting improvement, however, than just its green credentials.

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DialightLED lighting helps Forth Ports win green award
Lighting challenges
This is Shed 3 – a specialist bulk
store for storing food commodities,
most often grain
It’s an environment where
spontaneous ignition is possible and
dust a constant hazard
The 400W SONs were clearly
struggling to provide adequate
illumination - each one actually
drawing about 440W

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DialightLED lighting helps Forth Ports win green award
Lighting challenges
Lamp replacement could only be
carried out when the shed became
empty of cargo
That could mean a wait of a few days
or even a year
When there is product stored, you
can't access the lighting for
maintenance
Replacement lights would have to
have long life and need limited
maintenance

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DialightLED lighting helps Forth Ports win green award
Lighting challenges
In the workshop 400W HPS high
bays caused work delay by taking up
to 30 minutes to re-strike
The need for regular replacement
involved clearing the floor of plant
being worked on so that the scissor
lift could be used to access fittings
In the cruise ship terminal lamp
replacement involved team of 3 men
The scissor lift had to be taken there
via public highway with a two-vehicle
escort, then dismantled to get through
the door and re-assembled inside
Having to work around cruise ship
timetables and staff scheduling meant
failed lights could end up waiting a
while, never mind the cost

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DialightLED lighting helps Forth Ports win green award
The solution
It must be a food product safe
luminaire to avoid dust build up and
comply with food regulations
Solution 1
13x400W SON high bays replaced in
Shed 3 with 8x172W Dialight LED
high bays
Solution 2
400W HPS in workshop and cruise
terminal replaced with 150W Dialight
LED high bays
Traditional HPS high bay v Dialight LED high bay

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DialightLED lighting helps Forth Ports win green award
The result
Changing to LED resulted in >75%
energy saving in Shed 3
Over 60% saving in the other areas
Options to introduce presence and
daylight detection to further improve
efficiency
Equivalent CO2 reduction in all areas
CO2 emissions cut by 0.4 tonnes per
light annually
Burden of maintenance eliminated as
each LED high bay carries Dialight's
5-year performance warranty
Shed 3 after changing from 13 x 400W SONs to 8 x
172W LED high bays

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DialightLED lighting helps Forth Ports win green award
Installation snapshot
400W SON and HPS replaced by
150/172W LED high bays
Maintenance burden and cost
eliminated
No more failed lamps or re-strike
delays
60-75% reduction in lighting energy
use
Improved colour rendition
CO2 emissions cut by 0.4 tonnes per
light annually
Options to introduce presence and
daylight detection to further improve
efficiency

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DialightLED lighting helps Forth Ports win green award
HPS
Voluminous body
Fragile
Total power consumption 440W
Sensitive to voltage change
Slow warm-up
Accumulation of dirt
Contains dangerous and harmful gases
High CO2 emissions
Low energy efficiency
LED
Small and compact body
Resistant to shock and vibration
Total power consumption 150-172W
Non-sensitive to voltage change due to
its wide voltage range
Instant on/off ability
Doesn’t accumulate dirt, easy to clean
Contains no harmful gases
Low CO2 emissions
High energy efficiency

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DialightLED lighting helps Forth Ports win green award
Testimonial
“As one of the UK’s largest ports groups, we take our environmental responsibilities seriously. We are
delighted with the reduction of energy consumption achieved with the added benefit of elimination of
maintenance and the associated disruption. Together these help us to operate more efficiently and
deliver operational benefits while we are also minimising our impact on the environment. We are now
actively examining other areas of the business which could benefit from this technology.”
Dr. Derek McGlashan, Environment and Energy Manager, Forth Ports Limited

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DialightLED lighting helps Forth Ports win green award
www.dialight.com
info@dialight.com
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