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Introduction – Project and Partners
Background – Steve Poole
Funding (E.On) – Rupert Butt
Design Challenges (DES) – Paul Fisher
Project Hardware (Projection) – Steve Poole
Outcome – (NRCH) – Dave Guy
Facts and Figures (Projection) – Steve Poole
Conclusions and Questions
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Background
◦ Project Scope
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Replace existing Tungsten light source with LED
Retain the existing lighting points
Recreate exactly the same lighting feel
Compatible with existing DMX control system
Seamless dimming to zero
Viable ROI
Energy Performance Contracting
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A program of works where the capital cost is recovered
through energy savings which are guaranteed by E.ON
£
Implementation
costs (incl.
financing)
£
£
Guaranteed
savings p.a.
£
£
£
Client
net
benefit
£
£
£
Guaranteed
savings
period
Ongoing
savings
Savings in
the early
years repay
the initial
capital
investment
thereby
limiting client
risk
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Nottingham Energy Performance
Contract
• E.ON secured a contract under the RE:FIT
Framework to deliver an EPC for Nottingham City
Council.
• £1.2M Investment to deliver a 26% energy saving
across 8 buildings, including Leisure Centres,
Care Homes and a Sports Stadium.
• All savings guaranteed for 7 years in order to pay
back the original investment.
• One of the 8 Buildings is the Royal Concert Hall.
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Design Challenges (DES)
◦ The issues that needed to be resolved
 Sourcing suitable product
 Existing light fittings
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Consistent and effective dimming
Control interface
The building
Emergency Lighting
Commissioning
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Design Challenges (DES)
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Existing Fittings
(High Level)
300W Par Lamps
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Design Challenges (DES)
 The Building
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Project Hardware – AlphaLED
◦ High Level Lighting (20m+ Height)
 60 x Bespoke fittings created
 Mechanical Interface
 2700 CCT – To match tungsten
“feel”
 3000Lm 28° Beam
 For punch and penetration.
 Replaced 300W R95 lamps
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Project Hardware – AlphaLED
◦ Low Level Lighting
 458 Down lighters
 Across 4 levels.
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2700 CCT
Match tungsten feel
700lm @ 11.5 TCW.
Replaced 75W Lamps
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AlphaLED Attributes
◦ Initial Colour Consistency
 1 x 2 step SDCM specification.
 Consistent wall washing
◦ Colour Consistency Guaranteed
 No colour shift over life
 (5 years, 50,000 hrs)
◦ Low Lumen Depreciation
 L95 50,000 hrs capability
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Control Gear
◦ DMX Capable – Dim to Zero Light level
 EldoLED Powerdrive.
• Outcome – Theatre Prospective
• LED/energy saving houselights and dimming, the
bottom 10%
• Maintenance and consumable savings (700 bulb
changes a year previously)
• Audience reaction to the change
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Facts and Figures
Nottingham Royal Concert Hall - Energy Usage
Power (W)
Qty
Total W
Total kW
300W Par 56
300
60
18000
18
75W R95
75
458
34350
34.35
Existing Fittings / Lamps Removed
Total
52.35
New AlphaLED Product Installed
Bespoke Atrium 28 Deg Beam
3000lm CRI80+ 2700K
46.1
60
2766
2.766
11.5
458
5267
5.267
Atrium with astral bezel
700lm CRI80+ 2700K
8.033
KW Saving
85% saving
44.317
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Facts and Figures
◦ The comparison is made assuming the lighting is
used in the same way as the existing lighting.
In Use Energy Consumption
kW
Hrs / Day
No Days
Total Kwh
Existing
52.35
14
345
252850.5
New Lighting
8.033
14
345
38799.39
Kwh Saving
214051.11
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Use control for further energy savings
◦ Tungsten to LED – saves 85% energy
Further energy Savings are possible:
◦ LED with DMX allows for various dimming profiles
◦ Set 100% for Theatre Customer use
◦ Set 65% for cleaning
◦ Set 50% at other times
◦ These are examples only
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Possible to double the saving
In Use Energy Consumption
kW
Hrs / Day
No Days
Total Kwh
Existing
52.35
14
345
252850.5
New Lighting 100% Level
8.033
4
345
11085.54
New Lighting 65% Level
8.033
5
345
9007.00
New Lighting 50% Level
8.033
5
345
6928.46
Total
14
◦ Don’t forget to consider use and control
27021.00
Kwh Saving
225829.50
Additional Saving with dimming profile
187030.11
Original Saving
214051.11
Total saving
401081.22
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Conclusions
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Substantial Energy Savings are possible
Light Quality can be matched
Day to day maintenance eliminated
Further substantial savings with controls
Hardware guaranteed 5 years 50,000hrs
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Any questions ?
Thank You
AlphaLED
Stand
D11