Lightscene 2019: National Lighting Survey
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At the ILP Lighting Summit in June this year, Liz Hudson presented the findings of the national lighting survey. She reviews this and discusses some of the key results from the study, including reflecting on the progress of conversion to LED within local authorities, alongside a selection of key statistics covering the following topics: lighting specialist employment within local government, retrofitting vs replacing, asset condition and carbon reduction. There are opportunities to launch a new survey, so Liz discussed her thoughts and those of ILP VP Local Government Ian Jones, on future surveys. Talk by Liz Hudson BA(Hons), Carbon Reduction Technology
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Lightscene 2019: National Lighting Survey
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- 4. 17/10/2019 Key objectives • Learn about the viability of surveying within public sector lighting • What sort of impact are local authority lighting departments making in the drive to reduce carbon emissions and energy consumption through LED upgrade? • And what is the potential contribution of local authority street lighting? • Where does local authority street lighting stand in terms of conversion progress? Just how far along are we? • What is the current scale of lighting engineer employment within local authorities? Is this a thriving opportunity for young engineers or are local authority lighting engineers an endangered species?
- 5. 17/10/2019 Who? • Metropolitan District • County • Unitary • London Borough • < 6m post street light • 8m post street light • 10m post street light • 12m > post street light • Heritage lanterns What? Who & what? *January to March 2018
- 6. 17/10/2019 Expectations • Learn a lot more about the viability of surveying within public sector lighting! • Gather data which could be refined into constructive and informative statistics for • To have our credibility checked by participants • To struggle to get the survey in front of some candidates • To get some really detailed, enthusiastic responses • To get ignored or filed low on priority lists by some candidates • To get some hostile refusals
- 7. 17/10/2019 What did we accomplish? • The National Survey Report • People coming forward with ideas • People coming forward with questions • Promotion of discussion
- 8. 17/10/2019 North of England South of England Scotland Wales Northern Ireland Avg. number of lighting specialists employed by local authorities* 4 2.5 3 2.5 14 Avg. number of street lights per employed lighting specialist 12,162 12,326 8,965 7,551 5,201 Lighting specialists ILP membership 51% 57% 45% 53% 20% The study indicates that there are just above 600 lighting specialists directly employed by local authorities within the UK public sector Approximately 13% of local authorities reported having no lighting specialists on staff and only 22% employed more than 3 lighting specialists We found that on average, 52% of all locally employed lighting specialists held memberships with the Institution of Lighting Professionals 9% of local authorities report active ILP memberships for employees not classed as lighting specialists, including 40% of the authorities with no specialists on staff
- 9. 17/10/2019 March 2019 December 2020 Annual LED conversion energy savings 860,000 megawatts 1,146,000 megawatts Annual LED conversion CO2 emissions savings 257,000 tonnes 342,000 tonnes Conventional luminaires mounted on: Heritage Lanterns 6m posts & below 8m posts 10m posts 12m posts Avg. original wattage 66w 120w 179w 260w 98w Avg. new wattage 27w 57w 91w 117w 42w Avg. power reduction per luminaire 39w 63w 88w 143w 56w Study data suggest that the energy saving potential following full LED conversion is in the region of: 1,723,502 megawatts of electricity per year
- 10. 17/10/2019 0 1 mil 2 mil 3 mil 4 mil 5 mil 6 mil 7 mil 8 mil All street lights Converted to LED by March 2019 Converted to LED by December 2020 Study findings suggest that 40% of all remaining unconverted street lights have already been assigned to a supplier for conversion Approximately 10% of local authorities have now fully converted to LED and, of the remainder, 20% have fewer than 2,000 luminaires to convert March 2019 December 2020 % of street lights converted to LED 51% 66% # of street lights converted to LED (estimated) 3.8 million 4.9 million
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- 15. 17/10/2019 Reasons not to take part • Didn’t receive the survey / I am not the appropriate person to fill this in! • The appropriate person is on holiday / leave / sabbatical • Don’t have the data you’re asking for • Don’t have the time / the survey is not a priority • Forgot about the survey • Suspicious of your motivations for collecting the data • Don’t like surveys / get too many surveys • Don’t like you / don’t agree with your survey set-up You need to anticipate these in order to mitigate them as much as possible during planning.
- 16. 17/10/2019 Set-up and logistical considerations • What questions do we need to ask? • How will we gather the data? • Questionnaire length • Is the data we’re asking for retrievable? Can it be retrieved by the demographic we’re targeting? • Question construction • Qualitative vs quantitative • Question format • Mandatory vs optional • How will we identify potential survey candidates? • How will we contact candidates? • Will we offer an incentive? • Will we encourage participation after the initial approach? If so, how? • How many responses do we need to confidently collate representative statistics?
- 17. 17/10/2019 Quantitative QualitativeVs How do you feel? Good Bad How do you feel? Indicate your answer here:
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- 19. 17/10/2019 Key subjects for data gathering Street lighting personnel Popular & emerging technologies Carbon & energy reduction Best / common practice Progress in conversion to energy efficient technology Retrofit vs Replacement Dimming & part-night Any other initiatives? Use of contractors Potential to expand the remit of the dept? Team size Team diversity Infrastructure Control and monitoring ‘Smart tech’ EV Integration Human centric Colour temperature Condition monitoring and replacement policy Maintenance Funding
- 20. 17/10/2019 Street lighting personnel Team size Potential to expand the dept. remit Use of contractors Diversity Use of contractors Potential to expand the remit of the dept? Recruitment Lights per head Qualified engineers vs ‘lighting specialists’ Trainees / apprentices Gender diversity Ethnic diversity Full time vs part-time Regular vs ad hock use How many contracted staff do you use regularly? Do regular contracted staff contract exclusively to your authority? Ongoing maintenance jobs or new installations only? Does your authority own or oversee other interior or exterior spaces? Does your department oversee lighting for projects other than street lighting? Are there strategies in place for non- street lighting? Are other LED upgrades in progress?
- 21. 17/10/2019 Objectives • What is the size of the street lighting team? • How many are qualified engineers, how many are non-engineers but dedicated lighting staff and how many are trainees? • Are they full time or part time? • What are their responsibilities? • Is the street lighting team growing, shrinking or maintaining a consistent staff size? • Is the locally employed staff team supplemented by external contractors?
- 22. 17/10/2019 What is the size of the street lighting team? Not including external contractors, how many of the following are directly employed by your authority? How many are qualified engineers, how many are non-engineers but dedicated lighting staff and how many are trainees? Fully qualified lighting engineers: Dedicated lighting staff, not qualified as lighting engineers: Trainees: Other: If other was indicated, please provide further details: Full time Part time
- 23. 17/10/2019 Is the street lighting team growing, shrinking or maintaining a consistent staff size? 17th Oct ‘16 17th Oct ‘13 17th Oct ‘10 17th Oct ‘07 Fully qualified lighting engineers Full time Part time Dedicated lighting staff, not qualified as lighting engineers Full time Part time Trainees Full time Part time Other Full time Part time On the following dates, how many of the following were employed within your local authority’s lighting department:
- 24. 17/10/2019 Is the locally employed staff team supplemented by external contractors? Is the locally employed staff team supplemented by externally contracted lighting engineers? Yes No In the last 24 months, has your authority’s locally employed staff team been supplemented by externally contracted lighting engineers? No Yes, on a regular basis Yes, on an ad hock or per project basis
- 25. 17/10/2019 What are the responsibilities of the street lighting team? Which of the following are handled by your in-house street lighting team? Street light maintenance and repairs New luminaire installation Pre-installation survey Condition audit Open option Open option Open option
- 26. 17/10/2019 What are the responsibilities of the street lighting team? In the last 24 months, how have the following assigned? In-house staff External contractor Both Street light maintenance and repairs New luminaire installation Pre-installation survey Condition audit
- 27. 17/10/2019 Objectives • What is the size of the street lighting team? • How many are qualified engineers, how many are non-engineers but dedicated lighting staff and how many are trainees? • Are they full time or part time? • What are their responsibilities? • Is the street lighting team growing, shrinking or maintaining a consistent staff size? • Is the locally employed staff team supplemented by external contractors? ✓ ✓ ✓ ✓ ✓ ✓ Will HR need to be included? Will this make the survey unviable?
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