Some 32 per cent of white-collar employees told the researchers that they were unhappy with the light intensity, with only a fifth were able to alter the light level.

The results are sure to bolster critics of the lit environment in the nation’s commercial workplaces, who have slammed the sector for a lack of creativity. Top lighting designer Paul Nulty, founder of Nulty+, tweeted: ‘Bad lighting effects workplace productivity. Who’d have thought!?’

UK offices still have a preponderance of so-called Category 2 lights – recessed, deeply-louvred fittings designed to minimise reflections on computer screens – which deliver a gloomy environment.

 

The study of over 12,000 workers across 17 countries showed that the UK workers are the least satisfied with their office ambience. The study appeared to add weight to the argument that local lighting control boosts employee engagement and satisfaction, as the biggest issue was a lack of control. Only 39 per cent of respondents say they can adjust the temperature, while a mere 21 per cent can alter the lighting.

‘This could be seriously affecting the concentration, productivity and engagement levels of workers, with the study showing that a lack of flexibility and control over the physical work environment correlates with a lack of engagement’, the study said. In contrast, highly engaged employees are those that have the most flexibility over how and where they work.

The situation in the UK is likely to be influenced by the country’s dominance of open-plan design, with 49 per cent of workers based in this kind of space due to its cost-saving benefits. However, this can limit employees’ individual control over their environment.

Christine Congdon, director of Global Research Communication told Lux: ‘Our research has consistently shown that the most engaged workers are those who have autonomy over how and where they work, whether adjusting the temperature, lighting, or workspace to suit their needs. ‘When people feel like they have choice and control over various aspects of their physical work environment, it leads to greater satisfaction overall.

‘Everybody is different and personal preference will depend on an individual’s natural physiology, their mood on a particular day and the task they are working on. To cater to these constantly changing needs, employers should pay more attention to providing a range of working environments, including the ability to adjust workspace basics as required.’

The study was commissioned by office furniture manufacturer Steelcase.

 

Visit us at www.novelenergylighting.com to explore our range of office lighting products, including LED panels and LED tubes. Call us to discuss your needs: 0208-540-8287, or drop us an email: sales@novelenergylighting.com

 

Main picture copyright Ripton Scott 2016

LUX reports: Compared to other conventional lighting solutions, T5 is still seen by some as too efficient for the facilities team to justify upgrading to an LED lighting system. But combined with controls, even the leap from T5 fluorescent lighting to LED can yield significant savings.

Woolworths is a case in point; the retailer’s branch in the South Eastern Brisbane suburb of Coorparoo managed to save 77 per cent energy in its car park area with LEDs and occupation sensors, and earned a Peak Load Reduction Reward for its efforts.

One of the reasons the management was looking for a new solution was the amount of hours the light was on in the car park. The T5 fittings, which had an average life span of two years, were on all day and night, with no control system in place.

The entry to the car part was lit with twin 28W T5 fittings which had been retrofitted in 2012.

When most of the T5s predictably started to fail at the same time, James Dwyer of Jones Lang Lasalle (JLL), which has a national building management contract for Shopping Centres Australia’s 77 retail assets, investigated lighting upgrade options. Dwyer was looking for a solution that would last longer than the T5s and save Woolworths the costs of frequent lamp replacements and maintenance.

The JLL team had recently completed a fire stair and car park lighting upgrade at CP1, a commercial office tower in Brisbane, where LEDs were installed. The positive feedback from the building manager there helped convince Shopping Centres Australia, the owners of Woolworths, that LED was the way forward.

Lighting manufacturer Enlighten helped Dwyer complete an unbudgeted capital expense application and detailed return on investment projection, which ‘impressed the owners and ensured that my application was approved,’ Dwyer said.

Dwyer opted for Enlighten’s Chameleon light fitting, which is built for long-lit areas such as fire stairs, car parks and back of house areas.

Most of the new LED fittings will only be on when needed, thanks to an in-built motion sensor which instantly switches the light from the standby 8W light output to the full 35W output for a set period of time which can vary between 15 seconds and five minutes. When the set time ends, the light output returns to standby mode.

A 90W 2 module Cetus LED low bay light from Enlighten was installed in the car park entry. This fitting actually represented a net increase in energy consumption compared to the existing T5 fixture (68W including ballast), but it was necessary to improve the light levels in this area.

All lights were replaced on a one for one basis, with each parking bays having a standard 12 chip bulk head installed. The fittings lighting the driveways are permanently on, and the ones approaching a turn have side-emitting optical lenses to ensure good visibility.

Coorparoo’s Woolworths is located in an area with electricity supply constraints, which means it qualified for a Peak Load Reduction Reward. Energy-saving scheme Energex rewards businesses within the area that contribute to reducing demand on the network during peak periods by replacing lighting with more energy efficient lighting. The reward payment given to Woolworths is estimated to be $500 for this upgrade.

The new LED lighting will save an estimated 77per cent energy in the car park area, which equates to 30,504 kWh per year. The project capital cost was $21,250 after the incentive payment, with a project payback calculation from energy and maintenance savings of 2.7 years.

According to Dwyer, the project has been well received. ‘The Chamaeleon fitting is perfectly suited to our undercover car park operation and I have received an immense amount of positive feedback from the tenants,’ he said.

Dwyer is planning to retrofit another shopping centre’s undercover carpark lighting with in early 2015.

Novel Energy Lighting specialises in LED Tubes, and LED IP65 fittings for business lighting retrofits. Speak to us today to understand the energy savings and explore financing which can be repaid through the energy cost savings.

Lux Magazine reports: Let’s say you’re in charge of energy use at the company and you want to take big steps to slash the bill. Who you gonna call? A building insulator? A smart meter salesman? The most common answer is….

 ‘An LED vendor.’

 That’s according to a poll of over 100 UK energy professionals in the public and private sector by Energy Live News (ELN), which asked them to name which measures they took over the last year, and which ones they are planning.

 ‘LEDs were the most popular choice for energy professionals to save energy over the last year – and they look set to remain favourites for the next 12 months,’ the website reported.

 83 percent of respondents said they tapped LED lighting over the last year, and 80 percent said they’ll bring in LEDs over the next 12 months.

 The number-two measure both for last year and the upcoming one didn’t even involve outright product purchases, as managers reported that ‘changing culture and behaviour’ was also high on their list (in other words, remember to turn off the efficient new LEDs).

 The poll did not specifically ask about new boilers, solar panel installations or building managemet systems, although those did receive write-in votes.

 ‘Insulation, variable speed drives, AMT or smart meters and energy management systems tied third, each being installed over the last year by around two fifths of energy professionals,’ ELN wrote.

 As popular as LEDs were among respondents, they elicited some reality checks from ELN readers in the website’s comments section.

 ‘When it comes to lighting LED is not quite the panacea for all ills it’s set up to be,’ wrote one.

 ‘Manufacturers are making grandiose claims about the longevity of these fittings without the evidence to back them up – the technology is so new there just haven’t been the number of hours in a year to claim they’ll last 100,000 hours or whatever they claim.’

 To that, another reader shot back, ‘Have you not heard of accelerated testing?’ One fan of LEDs commented that it might still be too early to splash out for them.

 ‘Buying LED today may not be the best option,’ he said. ‘It might be better to wait a few years when efficacies will be even higher, as in many applications they have the potential to last 20-30 years and in that situation you may be better off with an optimised package that will go the distance.
’

 In a cautionary tale, he added, ‘A lot of LED packages are poorly selected/sold and they will be replaced a lot earlier than hoped for.
’

 Poorly sold? Hmmmm. Sounds like the poll needs a subcateory: Changing the culture and behaviour of vendors.

—

Photo: To avoid this sort of utility bill shock, energy managers are turning to LEDs more than anything. Image is from Shutterstock

Lux Magazine reports: The government is considering ways to slash demand for energy by encouraging homes and businesses to install low-energy lighting and controls.

A consultation on ways to reduce demand for electricity was launched yesterday together with the Energy Bill, and runs until the end of January.

The Department of Energy and Climate Change (DECC) believes that a quarter of the potential energy savings to be made in homes by 2030 could come from getting rid of incandescent lamps, while lighting and controls could account for more than a third of savings in commercial properties and nearly half in the public sector (including streetlighting).

In the residential sector, the major barrier to adopting these technologies is a lack of awareness, the government believes, while in commercial buildings the main problems are the payback period on lighting upgrades and the fact that the person using a building and paying the bills is not always the one with the power to make changes.

The government is considering various financial incentives for energy-efficiency measures as well as voluntary and information-based approaches.

Engineering body Cibse has welcomed the consultation, saying it comes “better late than never”. Cibse said that simple improvements to building performance could make a huge difference to the amount of energy needed in the future.

Any new measures to promote efficiency will come on top of the Green Deal, set to be launched fully in the new year, which will provide finance packages allowing  households and businesses to pay for energy-efficiency upgrades from savings on their bills.

Energy minister Ed Davey said the Energy Bill and associated measures are designed to drive low-carbon economic growth and “keep the lights on”.

Last year 39TWh of energy (that’s 39 billion kWh) was used to light commercial and public sector buildings, while around 15TWh was used in homes.

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Lux Magainze report: Energy-efficient lighting has come out top in a survey of green technology investments for businesses.

Over three quarters of businesses (77 per cent) polled by the Carbon Trust said they had invested in energy-efficient lighting in the past year, while 59 per cent had invested in employee training and 57 per cent had invested in energy metering and monitoring.

Almost all businesses surveyed said energy efficiency was an important consideration when buying or upgrading equipment.

However, the survey also highlighted reservations about the transition to the new technology, with only half of respondents (51 per cent) saying they were confident about manufacturers’ energy-efficiency claims.

Hugh Jones, managing director of business advice at the Carbon Trust said: ‘Our survey showed that return on investment is the most important factor for organisations considering investing in energy efficiency and low carbon technologies.’

The survey comes as the Carbon Trust launches the Green Business Directory, which lists suppliers that have been vetted under the trust’s Accredited Supplier scheme.

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