Lighting and Lighting Controls
The objective of the webinar to assist you in modelling lighting, lighting controls and display lighting in BERs in new and existing buildings. Recognising lighting types will also be discussed.
The details of the 3 different lighting entry methods will be compared. NCM default lux levels and lighting efficacy will be discussed. The different aspects of lighting controls will be presented in some detail. More specialist subjects such as top-lit and side-lit spaces, impact of window size, etc, will be outlined.
Display lighting will be reviewed.
The impact of lighting on heating energy will be demonstrated.
Non-Default Flow Temperatures in DEAP
This will be the 3rd in a series of documentary evidence webinars for registered BER assessors. This webinar for registered BER assessors and will cover the following:
1. The effect of Flow Temperature on heat pump operation
2. The Designer/Installer sign-off workbook
3. BER Requirements where a non-default flow temperature is used.
SEAI - Non Domestic Webinar #1 Domestic Hot Water Systems in NEAPSustainableEnergyAut
The objective of this webinar was to provide the assessor with the knowledge on how to identify a hot water system and input into iSBEMie correctly.
Other items covered included, how to establish the required efficiency data, the assigned storage aspects, individual or bi-valent systems and how to apply it to zones.
The objective of the webinar was to provide BER assessors an understanding of the National Retrofit programme, what is a one stop shop, key requirements and conditions, a home energy assessment and what Grants are available.
Warner Homes is running an online event to provide a refresher to contractor QA on where Major Renovation applies and how it is measured in the context of TGD Part L.
We will address key insights around quality, and will examine in detail what is the source of high numbers of fails in a selected measure. In this session, we are reviewing common fails for external wall insulation.
Non-Default Flow Temperatures in DEAP
This will be the 3rd in a series of documentary evidence webinars for registered BER assessors. This webinar for registered BER assessors and will cover the following:
1. The effect of Flow Temperature on heat pump operation
2. The Designer/Installer sign-off workbook
3. BER Requirements where a non-default flow temperature is used.
SEAI - Non Domestic Webinar #1 Domestic Hot Water Systems in NEAPSustainableEnergyAut
The objective of this webinar was to provide the assessor with the knowledge on how to identify a hot water system and input into iSBEMie correctly.
Other items covered included, how to establish the required efficiency data, the assigned storage aspects, individual or bi-valent systems and how to apply it to zones.
The objective of the webinar was to provide BER assessors an understanding of the National Retrofit programme, what is a one stop shop, key requirements and conditions, a home energy assessment and what Grants are available.
Warner Homes is running an online event to provide a refresher to contractor QA on where Major Renovation applies and how it is measured in the context of TGD Part L.
We will address key insights around quality, and will examine in detail what is the source of high numbers of fails in a selected measure. In this session, we are reviewing common fails for external wall insulation.
Experts explain new multifamily auditing techniques, their scalability, what makes the energy savings cost-effective, where the programs can be most successful, and what non-energy benefits result from this work.
Energy performance assessment of lighting systemsSajid Sheikh
LIGHTING SYSTEM.ENERGY ASSESSMENT OF LIGHTING SYSTEM.MEASUREMENT OF INDOOR CALCULATION FOR LIGHTING PURPOSE. HOW TO CHOOSE LIGHT FOR DIFFERENT APPLICATION.HOW TO SATISFY THE LUMINANCE REQUIREMENT.LUMINANCE PERFORMANCE CHARACTERSTICS OF DIFFERENT LUMINARIES.
compact fluorescent light, energy-saving light, and compact
fluorescent tube.
The CFL was initially designed to replace the incandescent lamp
in terms of its compactness as well as energy efficiency.
The basic construction of a CFL consists a tube which is
curved/spiraled to fit into the space of an incandescent bulb,
and a compact electronic ballast in the base of the lamp
compact fluorescent light, energy-saving light, and compact
fluorescent tube.
• The CFL was initially designed to replace the incandescent lamp
in terms of its compactness as well as energy efficiency.
• The basic construction of a CFL consists a tube which is
curved/spiraled to fit into the space of an incandescent bulb,
and a compact electronic ballast in the base of the lamp
Experts explain new multifamily auditing techniques, their scalability, what makes the energy savings cost-effective, where the programs can be most successful, and what non-energy benefits result from this work.
Energy performance assessment of lighting systemsSajid Sheikh
LIGHTING SYSTEM.ENERGY ASSESSMENT OF LIGHTING SYSTEM.MEASUREMENT OF INDOOR CALCULATION FOR LIGHTING PURPOSE. HOW TO CHOOSE LIGHT FOR DIFFERENT APPLICATION.HOW TO SATISFY THE LUMINANCE REQUIREMENT.LUMINANCE PERFORMANCE CHARACTERSTICS OF DIFFERENT LUMINARIES.
compact fluorescent light, energy-saving light, and compact
fluorescent tube.
The CFL was initially designed to replace the incandescent lamp
in terms of its compactness as well as energy efficiency.
The basic construction of a CFL consists a tube which is
curved/spiraled to fit into the space of an incandescent bulb,
and a compact electronic ballast in the base of the lamp
compact fluorescent light, energy-saving light, and compact
fluorescent tube.
• The CFL was initially designed to replace the incandescent lamp
in terms of its compactness as well as energy efficiency.
• The basic construction of a CFL consists a tube which is
curved/spiraled to fit into the space of an incandescent bulb,
and a compact electronic ballast in the base of the lamp
The ENERGY STAR Lamps Specification V1.0 was finalized on August 28, 2013. To continue labeling products with the ENERGY STAR logo, all existing qualified lamps must be re-qualified by an EPA-accredited certification body to the new specification by September 30, 2014. This presentation gives you a thorough understanding of the key changes, scope and deadlines for compliance with the new specifications.
If you are also considering replacing or retrofitting parking lot poles, garages, bollards, floods and other areas with a better option, this workshop is for you. Speaker Stan Walercyk will examine what works best for
certain applications and the costs associated with them. If you have considered light emitting diodes and thought that performance and pricing were not good enough, a lot has changed since 2009. Real-life estimates, high-tech control systems and other issues will also be discussed.
Comprehensive presentation on the different types of lighting technology used with sight glasses. It compares LED, halogen, and other styles of sight glass lighting.
Numerous LED products are currently ready for prime and are better than incumbent technologies for interior applications. But there are also many LED products that are not yet nearly as cost effective as high performance fluorescent, halogen infrared, MH, etc.
This seminar will discuss reach-in frig/freezers, decorative lights, accent lighting, recessed cans, linear replacement lamps, troffers and other applications. A 0.4 - 0.6 watts per square foot with good lighting quality is attainable with highperformance task ambient lighting, without the need for expensive, more complex
systems. Long-term life cycle costs will be included. (High bay lighting is not included, because there is another workshop dedicated to the subject.)
A short and sweet guide to making your business more energy efficient by making changes to your lighting. Created by the Camden Climate Change Alliance and aimed at businesses based in the London Borough of Camden, UK. For more information please visit www.camdencca.org
AN INTRESTING AND VERY USEFUL PRESENTATION ON SIMULATION ON PROTEUS.iN THE SIMULATION VIEWER WILL LEARN HOW TO OPERATE PROTEUS AND GLOW AN LED AND COMPARE THE POWER CONSUMPTION BETWEEN LED AND BULB/CFL.
Proteus LED and Bulb SIMULATION by Akshay TripathiAkshay Tripathi
This Powerpoint Presentation will help the viewer in understanding the simulation on PROTEUS software and help them understand the glowing of LED and CFL/BULB and how to measure the power consumed by them.Thats all Hope you like it and get something useful and lean something useful from this presentation.
What's the Difference Between a Incandescent and LED Light Bulb (and others)?Servc
Before you purchase or install any light bulbs, find out what the makes them different. From LED, induction, Metal Halide, Compact Fluorescent and Fluorescent, learn about the applications, light output and compliances. If you're looking for a source for commercial, industrial, or high-tech lighting contact Servc Group at 800.379.3323 or support@servc.com.
Our business team at SEAI will take you through education supports, energy audit voucher,s and grant supports for businesses who want to save energy and reduce their bills. You will also learn about how you can fund your renewable energy transition.
The SEAI Fellowship pilot programme will provide the opportunity for postdoctoral or experienced researchers to apply for research fellowship positions based within SEAI.
This webinar will help you understand:
How to reduce your energy use and bills this winter.
SEAI supports and grants to help you further reduce costs and move away from fossil fuels.
How to fund your renewable energy transition.
The objective of this training will be to introduce contractors to the fundamentals of Quality Management Systems and to help them to understand how they can assist contractors in providing quality service to our Homeowners.
Session 2 - National Energy Research and Policy Conference 2022SustainableEnergyAut
Presentations from:
Dr Bernadette Power
Dr Gary Goggins
Jean-Pierre Roux
Dr Noreen Brennan
Dr Niall Dunphy
Katie Harrington
Dr Róisín Moriarty
Dr Brian Caulfield
This is a stakeholder engagement webinar in relation to identifying a suitable energy education service provider(s), to provide Management and Administrative Services to support the delivery of the SEAI School Workshop Programme.
The webinar will outline how SEAI can help and support committed public bodies now and in the long term to achieve 2030 targets. SEAI are delighted to have Jan Rosenow, Director of European Programmes at the Regulatory Assistance Project, addressing the current drivers for climate action and why it is an imperative strategic concern for all businesses, public and private. Peter Smyth, Assistant National director in the HSE Capital and Estates Department will cover their journey from ad hoc once-off projects dependent on annual budgets, to a strategic HSE Infrastructure Decarbonisation Roadmap.
Willie Nelson Net Worth: A Journey Through Music, Movies, and Business Venturesgreendigital
Willie Nelson is a name that resonates within the world of music and entertainment. Known for his unique voice, and masterful guitar skills. and an extraordinary career spanning several decades. Nelson has become a legend in the country music scene. But, his influence extends far beyond the realm of music. with ventures in acting, writing, activism, and business. This comprehensive article delves into Willie Nelson net worth. exploring the various facets of his career that have contributed to his large fortune.
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Introduction
Willie Nelson net worth is a testament to his enduring influence and success in many fields. Born on April 29, 1933, in Abbott, Texas. Nelson's journey from a humble beginning to becoming one of the most iconic figures in American music is nothing short of inspirational. His net worth, which estimated to be around $25 million as of 2024. reflects a career that is as diverse as it is prolific.
Early Life and Musical Beginnings
Humble Origins
Willie Hugh Nelson was born during the Great Depression. a time of significant economic hardship in the United States. Raised by his grandparents. Nelson found solace and inspiration in music from an early age. His grandmother taught him to play the guitar. setting the stage for what would become an illustrious career.
First Steps in Music
Nelson's initial foray into the music industry was fraught with challenges. He moved to Nashville, Tennessee, to pursue his dreams, but success did not come . Working as a songwriter, Nelson penned hits for other artists. which helped him gain a foothold in the competitive music scene. His songwriting skills contributed to his early earnings. laying the foundation for his net worth.
Rise to Stardom
Breakthrough Albums
The 1970s marked a turning point in Willie Nelson's career. His albums "Shotgun Willie" (1973), "Red Headed Stranger" (1975). and "Stardust" (1978) received critical acclaim and commercial success. These albums not only solidified his position in the country music genre. but also introduced his music to a broader audience. The success of these albums played a crucial role in boosting Willie Nelson net worth.
Iconic Songs
Willie Nelson net worth is also attributed to his extensive catalog of hit songs. Tracks like "Blue Eyes Crying in the Rain," "On the Road Again," and "Always on My Mind" have become timeless classics. These songs have not only earned Nelson large royalties but have also ensured his continued relevance in the music industry.
Acting and Film Career
Hollywood Ventures
In addition to his music career, Willie Nelson has also made a mark in Hollywood. His distinctive personality and on-screen presence have landed him roles in several films and television shows. Notable appearances include roles in "The Electric Horseman" (1979), "Honeysuckle Rose" (1980), and "Barbarosa" (1982). These acting gigs have added a significant amount to Willie Nelson net worth.
Television Appearances
Nelson's char
Natural farming @ Dr. Siddhartha S. Jena.pptxsidjena70
A brief about organic farming/ Natural farming/ Zero budget natural farming/ Subash Palekar Natural farming which keeps us and environment safe and healthy. Next gen Agricultural practices of chemical free farming.
Artificial Reefs by Kuddle Life Foundation - May 2024punit537210
Situated in Pondicherry, India, Kuddle Life Foundation is a charitable, non-profit and non-governmental organization (NGO) dedicated to improving the living standards of coastal communities and simultaneously placing a strong emphasis on the protection of marine ecosystems.
One of the key areas we work in is Artificial Reefs. This presentation captures our journey so far and our learnings. We hope you get as excited about marine conservation and artificial reefs as we are.
Please visit our website: https://kuddlelife.org
Our Instagram channel:
@kuddlelifefoundation
Our Linkedin Page:
https://www.linkedin.com/company/kuddlelifefoundation/
and write to us if you have any questions:
info@kuddlelife.org
"Understanding the Carbon Cycle: Processes, Human Impacts, and Strategies for...MMariSelvam4
The carbon cycle is a critical component of Earth's environmental system, governing the movement and transformation of carbon through various reservoirs, including the atmosphere, oceans, soil, and living organisms. This complex cycle involves several key processes such as photosynthesis, respiration, decomposition, and carbon sequestration, each contributing to the regulation of carbon levels on the planet.
Human activities, particularly fossil fuel combustion and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and driving climate change. Understanding the intricacies of the carbon cycle is essential for assessing the impacts of these changes and developing effective mitigation strategies.
By studying the carbon cycle, scientists can identify carbon sources and sinks, measure carbon fluxes, and predict future trends. This knowledge is crucial for crafting policies aimed at reducing carbon emissions, enhancing carbon storage, and promoting sustainable practices. The carbon cycle's interplay with climate systems, ecosystems, and human activities underscores its importance in maintaining a stable and healthy planet.
In-depth exploration of the carbon cycle reveals the delicate balance required to sustain life and the urgent need to address anthropogenic influences. Through research, education, and policy, we can work towards restoring equilibrium in the carbon cycle and ensuring a sustainable future for generations to come.
Micro RNA genes and their likely influence in rice (Oryza sativa L.) dynamic ...Open Access Research Paper
Micro RNAs (miRNAs) are small non-coding RNAs molecules having approximately 18-25 nucleotides, they are present in both plants and animals genomes. MiRNAs have diverse spatial expression patterns and regulate various developmental metabolisms, stress responses and other physiological processes. The dynamic gene expression playing major roles in phenotypic differences in organisms are believed to be controlled by miRNAs. Mutations in regions of regulatory factors, such as miRNA genes or transcription factors (TF) necessitated by dynamic environmental factors or pathogen infections, have tremendous effects on structure and expression of genes. The resultant novel gene products presents potential explanations for constant evolving desirable traits that have long been bred using conventional means, biotechnology or genetic engineering. Rice grain quality, yield, disease tolerance, climate-resilience and palatability properties are not exceptional to miRN Asmutations effects. There are new insights courtesy of high-throughput sequencing and improved proteomic techniques that organisms’ complexity and adaptations are highly contributed by miRNAs containing regulatory networks. This article aims to expound on how rice miRNAs could be driving evolution of traits and highlight the latest miRNA research progress. Moreover, the review accentuates miRNAs grey areas to be addressed and gives recommendations for further studies.
Characterization and the Kinetics of drying at the drying oven and with micro...Open Access Research Paper
The objective of this work is to contribute to valorization de Nephelium lappaceum by the characterization of kinetics of drying of seeds of Nephelium lappaceum. The seeds were dehydrated until a constant mass respectively in a drying oven and a microwawe oven. The temperatures and the powers of drying are respectively: 50, 60 and 70°C and 140, 280 and 420 W. The results show that the curves of drying of seeds of Nephelium lappaceum do not present a phase of constant kinetics. The coefficients of diffusion vary between 2.09.10-8 to 2.98. 10-8m-2/s in the interval of 50°C at 70°C and between 4.83×10-07 at 9.04×10-07 m-8/s for the powers going of 140 W with 420 W the relation between Arrhenius and a value of energy of activation of 16.49 kJ. mol-1 expressed the effect of the temperature on effective diffusivity.
WRI’s brand new “Food Service Playbook for Promoting Sustainable Food Choices” gives food service operators the very latest strategies for creating dining environments that empower consumers to choose sustainable, plant-rich dishes. This research builds off our first guide for food service, now with industry experience and insights from nearly 350 academic trials.
2. This event is being recorded
WebEx Housekeeping
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Attendees are muted with cameras off
Questions submitted by clicking Q&A bubble
Questions will be answered at end of event
An FAQ will be created from all questions submitted and shared
A recording and slides will be distributed after the event
4. Classified as General
What this workshop will cover
• Modelling lighting
– 3 different methods
– NCM lux levels
– Lighting efficacy
• Recognising lighting types
• Modelling lighting controls
• Display lighting
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5. Classified as General
Purpose of this workshop
• Improve the accuracy of BERs for your clients
• Help you advise on achieving a target BER grade
• Based on iSBEMie
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6. Classified as General
Source Documents
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Compliance Guide. Technical Guide Survey Guide NEAP Modelling Guide 2021 Part L
8. Classified as General
Lighting input methods
• Lux level
• Full lighting design carried
out (should input lux
levels)
• Lighting chosen but
calculations not carried out
• Lighting parameters not
available
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9. Classified as General
Mixing methods is accepted
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Z0/01= full design z0/02=chosen but no calcs z1/02 parameters not available
10. Classified as General
Lighting input methods: Full lighting design carried out
• Need to know total watts of power of lighting,
excluding sensors, but including the “ballast” i.e. the
lighting driver (electrical or electronic control gear)
• Need to input lux levels as well.
• You should still enter the lighting type under “lighting
parameters not available” so that the Advisory
Report reflects the installed lighting type. BUT
DON’T TICK THE BOX
• Exclude plug-in task lights
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Lighting “ballast”
11. Classified as General
Example calculations
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• Em is the lux level to use in SBEM. It is the mean lux level
• Workplane height is 0.75m in offices etc.
12. Classified as General
Lux level
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• Lux and Watts from Full design will be used to calculate W/m2/100 lux power density.
• The calculated value will be used against either:
– The design illuminance (300 lux in this example)
– The default illuminance (400 lux in this example, which is an office).
• The higher of the two values will be used in the BER to calculate total lighting energy
• So if you specify more lux than SBEM expects, SBEM will use your input
• If you have less lux than SBEM expects, SBEM will increase the lux levels to its
figure
• Lux levels are at the working plane defined by CIBSE/SLL e.g. floor in corridors, desk
height in offices
15. Classified as General
Lighting input methods: lighting chosen but calculations not carried out
• Lamps luminous efficacy- average initial (100
hour) lamp plus ballast Lamp-lumens/circuit-watt
• Light output ratio (LOR) of the luminaire
• (A lamp sealed in a black box has an LOR=0.0)
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• Most manufacturers only declare a luminaire
luminous efficacy for LED fittings
• Therefore input LOR=1.0 and “Lamp luminous
efficacy” will be the luminaire efficacy, e.g. 125
• In all cases it is a good idea to input the lamp type, especially for LED, otherwise the
Advisory Report may recommend changing the lights, assuming them to be of a less
efficient type.
Lamp method Luminaire method
16. Classified as General
Lighting input methods: lighting chosen but calculations not carried out
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• SBEM ignores inputs of Design Illuminance in this case, and uses its own lux levels always
17. Classified as General
Lighting input methods: lighting parameters not available
• If you don’t know anything about the light design or luminaire efficacy, use this method
• Most BERs of “Existing” buildings, especially those not newly built, use this method
• SBEM will assume fairly poor performance for the lamp and luminaire of each type, but you
probably have no choice
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18. Classified as General
Lighting: air-extracting luminaires?
• Relevant in buildings with mechanical ventilation based
heating systems or air conditioning where air can be drawn
across the luminaire on its way back to the fan.
• Reduces cooling energy use
• But increases heating energy use
• Makes no difference to auxiliary energy
• Makes no difference to lighting energy
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Return air into the ceiling
void via luminaire.
It takes some of the heat
of the light away from the
room directly to the
ceiling plenum. Holes in
the back of the luminaire.
Might replace return air
grilles.
20. Classified as General
Lighting Types: Fluorescent
• T5: 16mm diameter (5/8 of one inch diameter)
• T8: 26mm diameter (8/8 of one inch diameter i.e. 1 inch)
• T12: 38mm diameter (12/8 of one inch diameter i.e. 1 ½ inches.)
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22. Classified as General
Lighting Types: Tungsten halogen
• Example 1
• The light source is more compact than standard tungsten filament lamps
but is not regarded as low energy lighting. These lamps are entered into
iSBEM as “Tungsten”. If uncertain, these lamps can be distinguished from
Metal Halide by switching off and switching on again. Tungsten and
tungsten halogen lamps will start instantly.
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23. Classified as General
Lighting Types: Tungsten halogen
• Example 2
• This type of bulb has become more common and is a halogen replacement
for a standard tungsten bulb. While this bulb is slightly more efficient than
standard tungsten bulbs they are still entered in iSBEM as tungsten, NOT
CFL.
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24. Classified as General
Lighting Types: Metal Halide
• Metal Halide
• Metal Halides are a discharge type of lamp and therefore require warm-up
time to allow them to reach their total luminosity.
• They are not suitable for use with motion/presence sensors.
• Some metal halide lamps are suitable for dimming with appropriate control
gear.
• If uncertain, these lamps can be distinguished from Tungsten by switching
off and switching on again. They will require around a minute to restart and
reach full brightness, unlike tungsten.
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25. Classified as General
Lighting Types: Metal Halide
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The bulb itself may need to be examined to be
certain. If in doubt, use the higher energy option
from the likely options.
26. Classified as General
Lighting Types: Compact Fluorescent
• In this example the lamp type might be expected to be Tungsten. Closer
inspection reveals that the lamp types are CFL.
• It is important to take a proper look at lamps when carrying out a survey.
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27. Classified as General
Warehouse High-Bay lighting
• Often new or replaced fittings are LED, but you can tell if they are LED
• Sometimes fluorescent, (you can tell) but it might be hard to tell T8 from T12 or T5
from T8 (use a zoom lens camera?).
• In other cases it may be difficult to tell what type of lamp is used
• If you cannot tell, be conservative and assume High Pressure Mercury
• You could ask if there are spare bulbs and take a photo of the fitting, like the above,
and a photo of the spare bulb in its box. Then you will know and have evidence.
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28. Classified as General
Non-functioning lights
• Some of the T-8 Fluorescent lighting in this assessment had been
disconnected, as evident by cables hanging down. The T8 tubes are still
in place.
• It is correct to include this lighting as T-8 Fluorescent rather than
“Fluorescent (no details)” or anything else as the lighting is otherwise
intact, has T8 tubes, and could be reconnected by a new occupant.
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• This light fitting is missing its bulb. Since the occupant has the
choice to install Tungsten, CFL or LED, the most pessimistic
must be chosen for the purposes of assessment. The most
pessimistic is Tungsten.
29. Classified as General
Non-functioning lights
• This light fitting is missing its tube. The Assessor is unlikely to
know if the fitting is T-8 or T-12, but knows it is one or the other.
The most pessimistic must be chosen for the purposes of
assessment. The worst is T-12.
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31. Classified as General
Is Lighting separately metered?
• Where there is a metering provision
exclusively for lighting, then SBEM will
reduce lighting energy consumption by
5%, provided there is an OUT OF
RANGE ALARM.
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No alarm so no benefit
Manually read system
BMS based system
34. Classified as General
Lighting Part L. Lighting Energy Numerical Indicator (LENI) calcs. done?
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function
• LENI=“Lighting Energy Numerical Indicator”.
• Only applies to Part L compliance check
• Has no bearing on the BER rating
• If a Part L check is carried out and a separate LENI
calculation has been carried out, then the SBEM inputs
are ignored for compliance purposes
Yes,
LENI
No LENI
27.5 for T8 magnetic,
rounded up
27.5/0.5 where LOR=0.5 per
NEAP Modelling Guide footnote 16
35. Classified as General
Default Lighting Efficacy.
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NEAP Modelling
Guide Footnote 16:
Luminous efficacy
values were
derived using a
light output ratio of
0.5 for side-lit and
unlit activities and
0.6 for top-lit
activities, except in
the case of LED,
where a light output
ratio of 1.0 was
used for all activity
classes.
36. Classified as General
Default Lighting Efficacy.
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NEAP Modelling Guide Footnote 16: Luminous efficacy values were derived
using a light output ratio of 0.5 for side-lit and unlit activities and 0.6 for top-lit
activities, except in the case of LED, where a light output ratio of 1.0 was used
for all activity classes.
37. Classified as General
What is Top-lit vs Side-lit?
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Examples of top-lit spaces.
NEAP Modelling Guide
39. Classified as General
Local Manual Switching
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• Occupants can control their own luminaires.
o Each switch must be <6m from the luminaire, or < twice the
luminaire height if this is greater (e.g. a tall office space).
o Room area must be <30m2 otherwise the switching is ignored
• Circulation zones, dry sports halls, changing rooms, eating drinking
areas, halls, lecture theatres, cold stores, A&E, industrial process
areas, warehouse and storage, and performance areas (stages)
ignore manual switching
• Centrally controlled is NOT local manual switching e.g. a switch
bank behind the bar in a pub controlling all the lights
• Manual switching consumes no energy i.e. no parasitic power
41. Classified as General
Photoelectric control
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• Is there a different sensor to control the back of the zone? (usually reduces energy use)
• Is it:
Switching control (on/off) (less common now)
Dimming control? (more common now and usually reduces energy use)
42. Classified as General
Photoelectric control: central or local?
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• Default parasitic power for controls is:
0.3W/m2 for stand alone sensors
0.57W/m2 for Addressable systems
Addressable system has sensors connected to a central logic
controller, similar to a BMS.
43. Classified as General
Automatic daylight zoning for lighting controls
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• Applies to:
Local Manual Switching and/or to
Photoelectric control
• “yes” means SBEM will follow the zoning rules and sub-divide the zone if necessary. Best for
simple rectangular shaped rooms, e.g. a room with windows down one side which is 10m by 12m.
• “no” means YOU sub-divide the room, and the % you enter is day lit, the remaining area gets no
useful daylight. Better to use for rooms which are not a simple box shape e.g. L shaped room.
44. Classified as General
Constant Illuminance Control
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• Applies to:
Dimmable lighting system
• Controls automatically control and reduce the initial luminaire output to just provide the required
maintained illuminance. As the light output decays with time, the controls raise the output power
to compensate until the full installed power is used (at which point, maybe the lights need
cleaning, or the walls need painting again!)
• Reduces general lighting power density by 10%. Good for meeting Part L.
There must be a sensor somewhere that
measures the lux levels in the zone. It could
be inside the luminaire (as could any lighting
control sensor).
45. Classified as General
Parasitic Power for photoelectric devices
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• Applies to:
Photoelectric control
Constant illuminance control
• Default value of 0.3W/m2 is conservative (lots of energy use).
• Unlike the lights, which might be on part of the day, the parasitic power is assumed to be present
24/7/365 i.e. constantly (see section 4.4 of the iSBEMie Technical Manual)
47. Classified as General
Exercise
• 50m2 classroom
• Installed LED lights consume 250 Watts peak, including built in
control gear
• Lights are enabled 1,000 hours per year
• Daylight controls mean they are on for only 25% of those hours.
• The daylight sensor consumes 0.3W/m2 constantly all year
• How much energy would the lights use in a year, in kWh if there
was no dimming?
• How much energy would the lights use if they were is dimming
as stated?
• How much energy does the dimming save?
• How much energy does the daylight sensor consume in a year in
kWh?
• How much energy would the daylight sensor consume if it was
the sensor shown on the right?
• What would be the W/m2 parasitic power for the sensor on the
right?
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48. Classified as General
Exercise
• LED lighting:
• 250*1000 hours/1000W/kW= 250 kWh per year if never
dimmed
• Dimming reduces use to 25% of 250= 62.5 kWh
• Energy saved= 187.5 kWh
• Controls
• Default 0.3W/m2*50m2*24*365/1000= 131.4 kWh
• Sensor to the right consumes 500mW=0.5W
• 0.5W*24*365/1000= 4.38 kWh instead of 131.4 kWh
• Parasitic power=0.5W/50m2= 0.01 W/m2 instead of 0.3
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51. Classified as General
Occupancy Sensing
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• What is an “automatic extinction signal”?
• It is a system to make sure all the lights are off after
all the users have left the building, usually at night.
(see EN 15193:2007)
How much do you save?
52. Classified as General
Occupancy Sensing: exceptions
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• In:
Circulation areas
Dry sports/fitness rooms
Ice rinks
Changing rooms
Swimming pools
Sales areas
Eating/drinking areas
Halls/ Lecture theatres
Cold stores
Industrial process areas
Warehouse storage
A&E
Baggage reclaim, security check areas,
performance areas (stage)
• All “manual on” occupancy controls are
ignored. Accepted are:
Auto on/Dimmed or
Auto On/Auto Off
Data reflection report and other files show illegal
inputs, but BER calculates based NO occupancy
sensing, unless auto on/Dimmed or Auto On/Auto
Off
53. Classified as General
Parasitic Power for occupancy sensing devices
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• Default value of 0.3W/m2 is conservative (lots of energy use).
• Unlike the lights, which might be on part of the day, the parasitic power is
assumed to be present 24/7/365 i.e. constantly (see section 4.4 of the
iSBEMie Technical Manual)
• Usually a single sensor does both photoelectric and occupancy controls.
• Therefore, if you put in your own W/m2, do not put in the parasitic power
twice.
• A suggestion has been made that in future versions of iSBEMie, instead of
W/m2, Watts would be input.
56. Classified as General
Display Lights: Where (and how much)
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• You don’t need to know the W/m2, it is for information only.
• Check the Display Lighting Tab of each zone to see if SBEM has assumed display lights
Zone name Building type
Display
Lighting
W/m2
Retail, Sales area - chilled All types of retail 10
Retail, Sales area - electrical All types of retail 10
Retail, Sales area - general All types of retail 10
Display and Public areas Museums, Galleries 13.2
Display window Retail 22
Eating/drinking area Retail, Restaurants, Cafes, Drinking establishments 10
Eating/drinking area Hotels 10
Reception All types of reception 9
57. Classified as General
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Display lighting
• Efficient lamps are defined as those with an efficacy higher than 15 lamp lumens per circuit-watt
• Display lighting is on the same time schedule as general lighting
• Automatic time switching will reduce Actual building display lighting energy use by 20%
• For Building Regulations compliance, display lighting below 22 lamp lumens per circuit-watt will
be reported as non-compliant
58. Classified as General
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Display lighting Lamp Luminous Efficacy
Default Lamp
Efficacy
lamp lumens
/circuit-watt
LED 50
Tungsten and Halogen 15
Fluoresent-compact 45
T12 50
T8 low frequency ballast 55
T8 high frequency ballast 65
T8 high frequency ballast, triphosphor 73
Metal halide 65
high pressure mercury 45
High pressure sodium 70
T5 75
Fluoresent-no details 45
Lamp Type
• Figures to the right can be used
when you know the display
lighting type, but have no
further details.
• Figures are derived from the
NEAP Modelling Guide Table 7
and associated Footnote 16