ENERGY
ENERGY EFFICIENT
LIGHTING DOESN’T
HAVE TO MEAN
HIGH EXPENDITURE
C
ommercial enterprises are facilities. COMPANIES HOUSE
always looking for ways to Kevin Cox, Managing Director of ECSL CROWN WAY, CARDIFF, CF14 3UZ
slash energy bills, but often explains the motives behind the
big long term savings come development in new lighting technology: THE PROJECT
hand in hand with high “The drivers towards energy efficiency put in To use ‘Save It Easy’ units to replace
initial investment. Lighting place by UK government mean that 600 5ft T8 lamps (58 watts) with 5ft T5
is an area in which many facilities business is increasingly being forced to take lamps (35watts) in a multi-storey car park lit
managers already have an active role and stock of its energy use - and then there’s the for 12 hours per day for 6 days per week.
where they now have the ability to show fact of steeply rising energy prices which The project was initiated and overseen
clients major savings at remarkably seem unlikely to fall again. While legislation by Mr Gareth Leek, Companies House
low cost. may not yet categorically enforce the use of Environmental Manager.
Commercial lighting presents a huge the installation of energy efficient lighting,
expenditure for most buildings, particularly the Government’s strict emission targets IMPLEMENTATION
ones that are in use for extended hours - ensure that they will do all they can to Following an initial evaluation it was
and often 24 hours a day. Most existing encourage the use of this kind decided that the superior light output of T5
luminaires are inefficient in terms of energy of technology.” lamps and their longer efficient operating
use, but completely replacing these fittings life compared to the existing lamps made it
would be a huge expenditure for CASE STUDIES possible to reduce to 430 the number of
most companies. ROYAL SURREY COUNTY HOSPITAL lamps installed.
Some 7 years in development, new EGERTON ROAD, GUILDFORD, SURREY
‘Save It Easy’ retrofit adaptors enable GU2 7XX THE SAVINGS
fluorescent lighting users to re-lamp with As a result of replacing 430 T8 lamps
high efficiency T5 and T8 tubes in existing THE PROJECT with the equivalent number of T5s, annual
fittings, negating the need for the huge A pilot installation of 980 ‘Save It Easy’ electricity consumption was reduced 53,127
investment involved with replacing less units to replace 4ft T8 lamps (36 watts) with kWh. This reduced energy costs by £3,719
efficient existing luminaires to gain the huge 4ft T5 lamps (28 watts) was recently carried and CO
2
emissions by 23 tonnes.
energy saving opportunities associated out in areas within the hospital which are Having entirely eliminated 170 T8
with this. typically lit 24 hours a day throughout the lamps, an additional annual energy saving
Energy savings range from 26% to 56% year. of 45,827kWh was achieved, reducing costs
depending on application and plug-in The lamps were mounted in 245 quad by a further £3,208 and CO
2
emissions by
installation avoids the need for highly units within common areas such as waiting 20 tonnes. Together the savings totaled
qualified staff and the engineering problems rooms and corridors. 66%.
of new attachments and re-wiring. Backed The project was initiated and overseen
by a two-year no quibble guarantee, Save It by Mr Gary Mountjoy, Royal Surrey Hospital PAYBACK PERIOD
Easy units also qualify for the Carbon Trust Estates Manager (EEM). On the basis of the combined savings
interest-free loan scheme for SME clients. above, payback period for this project is
Users will benefit from extended life with THE SAVINGS estimated at 0.74 years.
new technology lamps. For example, the GE The reduction in electricity consumption
Starcote T5 lamp offers an efficient Iife of from the project is 137,356 kWh per
22,000 hours compared with the average annum, representing an annual cost saving
conventional T5 tube efficient life of around of £6,730 and annual CO
2
emissions
6-8,000 hours. saving of 59 tonnes.
Low initial cost and simplicity of
installation give these units a payback of PAYBACK PERIOD
less than a year in higher usage On the basis of the savings shown
applications. And ‘Save It Easy’ units have above, and taking into account both the
the full endorsement of GE Consumer and product and installation costs, the payback
Industrial Lighting, who have subjected them period for the project is 1.21 years
to rigorous testing at their Budapest HQ
32|
SUSTAINABLE FM | NOVEMBER 2007
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