Five ways to save energy Nick Clark MSLL Sales Director Thorn Energy Solutions
Introduction Nick Clark SD, Thorn Energy Solutions turnkey propositions Thorn Lighting statement of intent to - Aid businesses to reduce carbon emissions - Lower operating costs - Empower partnerships - Raise performance expectations
Energy Trends
What is energy saving lighting? A light source, a luminaire or should it be a solution?
The five ways to save energy Light source C 40-50%
Lamp Physical size / Layout Maximise LOR
Lamp Thermal Characteristics Is the lamp suitable for the location
Lamp The truth about LED Issues of Rated Life Colour Temperature Voltage Luminaire modification WEEE Energy Efficacy Cost, Lamp orientation In-luminaire Photometric performance
Lamp Maintenance Regular lamp maintenance to lower MF
Lamp Lamp choice / Colour temperature LV vs LED (Cool white vs Warm)
Lamp choice LED 50W 11W (23W) 1W (4.4W) 7W (9W) 7.2W (9.7W) 2000hrs 15000hrs 20000hrs 20000hrs 50000hrs 16mA 96mA 18mA 17mA 312lm 115lux <20lux? Lux 110lux >120lux 2700k 3000k 3-5000k 5000k 3000k
The five ways to save energy Light source C Driver / Ballast 40-50% 25%
Driver SS to HF
Driver Dimming
Driver Reliability Power Factor Third Harmonic Flicker (peripheral) LED Drivers - C82.SSL1, Power Supply, will specify operational characteristics and electrical safety of SSL power supplies and drivers. - C82.77-2002, Harmonic Emission Limits - Related Power Quality Requirements for Lighting, will specify the maximum - allowable harmonic emission of SSL power supplies. - NEMA LSD 49-2010, Solid-State Lighting for Incandescent Replacement Best Practices for Dimming. Provides - recommendations for the application of dimming for screw based incandescent replacement solid-state lighting products. - NEMA SSL 1-2010: Electronic Drivers for LED Devices, Arrays, or Systems. Provides specifications guidance for - electromagnetic immunity, audible noise, and efficiency calculations. - NEMA SSL 6-2010: Solid State Lighting for Incandescent Replacement Dimming. The standard addresses dimming of - these products and the interaction between the dimmer (control) and the bulb (lamp), and introduces requirements to help - ensure good dimming performance and prevent damage to either component. - UL 1012, Power Units Other Than Class 2, specifies the minimum safety requirements for power supplies other than - Class 2 (as defined in NFPA 70-2005). - UL 1310, Class 2 Power Units, specifies the minimum safety requirements for Class 2 power supplies (as defined in - NFPA 70-2005). - EN55022, Limits and methods of measurement of radio disturbance characteristics of electrical lighting - EN61000, Disturbances in supply system - EN61547, Equipment for general lighting purposes EMC immunity requirement - IEC 61347-2-13: 2006 and IEC 61347-1:2007, CE safety and Low Voltage Directive - ENEC safety tests
The five ways to save energy Light source C Driver / Ballast Luminaire 40-50% 25% 50%
Luminaire LL/CW 26W 1800lm 69lm/W 28W 1800lm 28W 86% LOR 1800lm 55LL/cW 64lm/W Nick Clark MSLL. Sales Director, Thorn Energy Solutions THORN Lighting
Luminaire Efficacies Maximum LOR
Luminaire Optical design Light exiting the product User comfort
Luminaire Thermal control
The five ways to save energy Light source C Driver / Ballast Luminaire Lighting design 40-50% 25% 50% 20%
Scheme Light where it is needed Wasted light User comfort
Scheme Light levels MF - Lower installed flux Don t over illuminate
Scheme Colour & reflectance The effect of colour can be immense - Reflected light - Energy efficiency Corridor 864m Long - Eh - 200lux, 70/50/20 2x35W Corniche/Asymmetric 3.6m ctrs, 240 fittings = 197 lux (-1.5%) 2x26W D/Light 2.4m ctrs, 360 fittings = 218 lux (+9%) 8% energy increase Using correct reflectance 81/83/58 1x49W Corniche/Asymmetric 3.6m ctrs, 240 fittings = 198 lux (-1%) 28% energy saving
Scheme Colour & reflectance Ensuite WC, 1.6 x 2.2m Eh 200lux Using Default Reflectance - 70/50/20 1 x Twin 32W fitting= 242 lux (+21%) Using correct reflectance 81/83/58 1 single 32W fitting =195 lux (-2.5%) 50% energy saving
The five ways to save energy Light source C Driver / Ballast Luminaire Lighting design Lighting management 40-50% 25% 50% 20% Daylight control: 40-60% Occupancy: 15-30%
Controls Dimming
Controls Absence/Presence detection Small groups User comfort
Lighting controls survey example
Stella House Lighting controls survey example Night survey - Newcastle 90 80 70 60 50 40 30 20 10 0 %lit windows Bede House Black Swan Central square Cheviot House Crutes Law Cuthbert house Latif Solicitors Lloyds TSB Maybrook Merridian business support North of England P & I Pearson & Caulfield PWC Quadrant Richmond Solicitor Savages Solicitors Aidan House (HMRC) Cathedral House 1 Cathedral House 2 City Library Civic Hall Devonshire NHS Business Authority Northumbria University law and business school Riverside House Mixed private/public Private Public Property 26 buildings surveyed, 10 public 15 private and 1 mixed public/private 10 buildings had no lighting visible by the last visit of the night
The five ways to save energy... a complete solution Light source C Driver / Ballast Luminaire Lighting design Lighting management 40-50% 25% 50% 20% Daylight control: 40-60% Occupancy: 15-30%
The five ways to save energy
The five ways to save energy Feel empowered use our knowledge understand the saving processes