Ecobuild 2014: Harvard - EyeNut
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Transcript of Ecobuild 2014: Harvard - EyeNut
Agenda
The Need for Effective Lighting ControlsCurrent Adoption LevelsRegulatory Trends
Mega-TrendsChanges in Building OccupancyPrefabrication & Modular ConstructionUser Perceptions with Legacy SystemsGrowth of LED Retrofits
***Introducing EyeNut***
Case Study
Conclusions
The Need for EFFECTIVE Lighting Controls
75% of controllable lighting sold in
Europe is not controlled when installed(source: Frost & Sullivan)
41% of electricity demand across all
sectors is due to lighting(source: CIBSE)
75%
41%
Yet……..
The Need for EFFECTIVE Lighting Controls
80%
75% of controllable lighting sold in
Europe is not controlled when installed(source: Frost & Sullivan)
80% of buildings that will exist in the UK
in 2050 have already been built (source: Greater London Authority)
75%
And……..
Legislating for EFFECTIVE Lighting ControlsPart L Building Regulations 2013 – includes control factor
Regulation and
Standards now
recognising the role
controls can play
Changes in building occupancy patterns
Office
Restaurant
Retail
Residential
The Rise of Mixed-Use DevelopmentsExample: 100 City Road, London
Residential rents are outstripping office rents, yet there is a shortage of office space
Office, residential, hospitality and retail spaces are co-locating
Lease lengths are decreasing. 25% decrease in London over past 10 years
New development schemes have elements of multiple use, under single landlord
This is driving need for greater flexibility in building and energy management
Outdoor Courtyard
Mega Trends
Prefabrication and Modular Construction
Prefabrication and modular construction is growing globally, and can bring numerous benefits:
• 3-4 week reduction in project schedules
• 5% reduction in construction site waste
• 5% reduction in material use
• 6% reduction in project spend
Lighting controls integration into prefabrications is attractive, and could increase adoption – but also requires easy commissioning!!
Mega Trends
Source: McGraw-Hill Construction
Mega Trends
User Perception with ‘Traditional’ Lighting Controls
• Require specialist engineers to re-program, often at high cost (£1000 a day not unusual)
• Time-consuming to re-configure
• Often require intervention into infrastructure to resolve issues
User Software often not intuitive;‘written by controls engineers
for controls engineers’
Mega TrendsLED luminaires sell into retrofit
We estimate that 80% of LED luminaires sold today are to retrofit existing ‘traditional’ luminaires
Lighting controls have a very low penetration rate into these buildings
Since LED is inherently controllable this creates a significant opportunity
Penetration of Lighting Controls into EU Office Space
20%
80%
LED Luminaire Sales by Volume
New Build
Retrofit
What does the future of lighting control look like
The ideal solution will……..
• Be wirelessly retrofittable into existing building infrastructure
• Simplify existing commissioning processes
• Have a user friendly, intuitive interface
• Report and analyse data from the installation
• Be easy to re-commission after data is analysed
User Friendly Controls
Lighting control has progressively been taken away from users, via complex software and programming methods
EyeNut hands control back to the users and provide a flexible, supported toolkit for continuous, dynamic use
Intuitive Interface
Configurable Dashboard
Provides useful information about installation to Users and Facilities Managers, including:
• Details of installed devices• Energy reporting• Money saved since installation
Intuitive Interface
Device List via RFID
Devices can be added to network via RFID scanning BEFORE power is supplied, making offsite pre-configuration a reality
This allows lighting control commissioning to begin during prefabrication and modular assembly stage
Intuitive Interface
Energy Management
All EyeNut-enabled luminaires are fitted with electronics & software providing real-time energy measurement capability
System watts consumption is measured at 30 minute intervals during operation
Data can be reported back to user interface and analysed using a suite of reports
Intuitive Interface
Easy Time Scheduling
24 hour profiles can be easily programmed and assigned to luminaire groups using a calendar feature
Intuitive Interface
Mapping
Create building maps from CAD or BIM software and navigate using Google maps functionality
Assign luminaires and controls to their mapped locations
Use maps to create control groups, identify devices, or view energy ‘hot spots’ graphically by area
EyeNut for RetrofitProject Example: Retail Department Store
1
2
3
4
AISLE:
12W LED replaces
56W halogen
PERIMETER:
58W LED replaces
88W HID
ACCENT:
32W LED replaces
112W halogen
AMBIENT:
29W LED replaces
70W CFL
Controls Strategy
Ambient, accent, perimeter and aisle lighting controlled
independently in each zone
Occupancy sensor in each zone, measuring occupancy by
zone by time of day
Selectively time-schedule layers of lighting in response to
occupancy
Apply minimum necessary lighting during out of hours (staff
training, stocking, cleaning)
0
5
10
15
20
25
30
35
40
00:00 06:00 12:00 18:00 00:00
kW
Time
Combined Lighting
Before control With control
1 2 3 4 5 6 7
Daily Phases
1 Store closed2 Staff arrival3 Early trading – low footfall4 Midday peak5 Mid-afternoon lull6 Evening peak7 Stocking/cleaning
1
EyeNut for Retrofit
Project Example: Retail Department Store
Additional 40% saved by controls additional to saving from LED replacement
1498 kWh/day reduced to 330 kWh/day = 78% Saving
Effective power density of 5.6W per m2
Payback from additional controls investment = 2 years
Results of Model
EyeNut for Retrofit
Project Example: Retail Department Store
Wireless & Retrofittable
Simple to install & configure
Easy luminaire conversion
Energy Management with Data measurement reporting & analysis
Scalable across multiple buildings & Mixed-Use sites