led replacement for metal halide, led lighting for business, industrial led lighting
Energy Efficiency

Calculating the Operating Cost of Your Metal Halide Lights – Part 1, Hydro Usage

Determining how much your Metal Halide (MH) lights are costing you can be frustrating.  It really amazes our clients when we break down the actual operating costs and then compare them to the operating costs of solid-state LED lighting.  Once you know these figures it allows you to see how much you will save by switching your business from MH to LED lighting.

In order to calculate the operating costs, you need to look at the two areas that make Metal Halide very expensive: hydro/electricity consumption and replacement/maintenance costs.  In this post we’ll take a look at the hydro cost of Metal Halide.

Let’s start with a look at the hydro consumption of MH and compare it to the consumption of an LED light.  I’ll use two examples from recent audits to show the difference in operating costs between MH and LED.

… This isn’t true.  In fact, a 400 watt MH light actually consumes 452 watts, due to the ballast factor.  HYDRO USAGE EXAMPLE 1:  Our first example is a community arena currently using 50 400 watt Metal Halide lights.  At first glance, you would think that 50 400 watt lights would consume 20,000 watts of electricity each hour (50 x 400w = 20,000w).  This isn’t true.  In fact, a 400 watt MH light actually consumes 452 watts, due to the ballast factor. In actuality, the 50 400 watt lights consume 22,600 watts of power each hour, or 22.6 kilowatt hours ( kWh) of hydro each hour.  With a blended hydro cost of 17¢/kWh, and operating for 4,000 hours each year, the arena currently spends $15,368 on hydro for lighting (22.6kWh x $0.17/kWh x 4000hrs = $15,368).

After producing an engineered lighting report, we recommended this client switch to two lights from the LusioFlex Essentials Series; 40 Flex ES3V-6MS and 10 Flex ES3VU-6MS lights.  The ES3V-6MS consumes only 146 watts and the ES3VU-6MS consumes 186 watts.  In total, these 50 new lights only consume a total of 7.7 kWh each hour.  The annual operating cost of this new lighting plan is only $5,236 annually.

Once this case, the new lighting will save this arena 14.7 kWh each hour – that’s a reduction of almost 66%.  Assuming the hydro rate stays at 17¢ kWh (we know it will rise, but let’s be conservative here) they’ll save $10,132 annually in hydro.

To find out more about the Lusio Flex Series visit http://flexlightingsolutions.com/fixtures/EssentialsSeries.html

HYDRO USAGE EXAMPLE 2:  This time we’ll look at an auto dealership using 36 1000watt Metal Halide area lights.  Once again, there is a ballast factor and the actual hydro consumption is 1080 watts per light per hour.  This means the dealership consumes 38.88 kWh of hydro each hour the lights are on (36 x 1080w = 38,880w or 33.88kWh).  As the lights operate an average of 12 hours a day and are on 365 days a year, this means the lights operate for 4,380 hours each year.  As a large volume electricity customer, this dealership pays 15.25¢/kWh.  Their annual lighting cost is currently $25,969.90 (38.88kWh x $0.1525/kWh x 4380hrs).

…the dealership will see their hydro bill decrease by $24,479 annually.  That’s a decrease of 78.86%. Once again, we produced an engineered lighting report and our recommendation was for the client to switch to two lights from the Lumingen SLD-PK series; 19 of the SLD-PK-300 and 17 of the SLD-PK-240.  The 300 model consumes 268 watts and the 240 consumes only 184 watts.  In total, these 36 new lights will consume only 8.22 kWh of hydro each hour.

Once in place the dealership will see their hydro bill decrease by $24,479 annually.  That’s a decrease of 78.86%.

You can find out more on the incredibly versatile, Canadian-designed, engineered and built Lumingen SLD-PK by visiting http://www.lumingen.com/

In short, to calculate how much hydro you are consuming with your MH lights, you have to know the wattage of the existing light, the ballast factor, your blended hydro cost and the annual hours of operation.  Feel free to contact us and we’ll help you put these numbers together and we’ll also put together a no-obligation engineered LED lighting report for you as well.  You can’t start a savings program until you know your current costs.

Next week we’ll look at the second area where Metal Halide operating costs add up replacement/maintenance costs.

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Environmentally Friendly

Mercury Rising – A Case for LED in the Ontario Workplace part 1

Clean air, clean water; two areas where we should all work together in order to provide a better, cleaner planet for future generations.  But there’s a growing threat most Ontario businesses seem to be unaware of and are contributing to on an alarming scale – pollution from mercury.

Millions of fluorescent lights seem are used by Ontario businesses each year.  Mercury-In-FluorescentMercury is an important component in every fluorescent tube light that there is, and without mercury these lights wouldn’t work.  Unfortunately, mercury is poisonous and, because of continued improper disposal, it’s ending up in our water table and in the air, in the form of methylmercury.

[pullquote cite=”Recycling Council of Ontario” type=”left”]…this year over 9 million fluorescent tubes will be incorrectly disposed of and will end up in Ontario landfills.[/pullquote]This year the Recycling Council of Ontario estimates that this year over 9 million fluorescent tubes will be incorrectly disposed of and will end up in Ontario landfills.  A 4 foot long mercury-reduced fluorescent tube contains as much as 12mg of mercury while a standard 4-foot long fluorescent tube can contain up to 50mg of mercury.  Environment Canada has published proposed regulations that would limit the mercury content to no more than 5mg.

While the amount of mercury in each fluorescent tube is small the concern arises based on the cumulative effect of millions of tubes being sent to landfills each year.

When a fluorescent tube ends up in a landfill the glass breaks and the mercury inside it is released.   The mercury becomes part of leachate, the liquid that seeps to the bottom of the landfill.  Many steps are taken to collect and filter leachate but mercury cannot be removed and it is released into our waterways.

The anaerobic bacteria, in landfills, chemically modifies some of mercury into Mercury-In-Fish-Signmethylmercury, a highly toxic agent, which is released into the air in gas emissions.  Methyl mercury is a bio-accumulant, meaning it slowly builds up in concentration in living organisms and will keep on accumulating because of the inability to metabolize it.  This pollution has a definite effect on our food chain, particularly Ontario freshwater fish.  The growing awareness of methyl mercury releases from landfills is starting to cause concern across North America.

Fluorescent tube lighting is the norm for most businesses in Ontario, we see it everywhere.  Compared to older incandescent lighting it is energy efficient and definitely tends to have a longer lifespan.  However, fluorescent tubes rely on the excitement of mercury and gasses, within the tube, to create light.

[pullquote type=”left”]The Ontario government has taken notice … Environment Minister Glen Murray acknowledged that mercury from these bulbs is at risk of seeping into the environment. [/pullquote]The Ontario government has taken notice of the issue.  In January, Environment Minister Glen Murray acknowledged that mercury from these bulbs is at risk of seeping into the environment.  Murray announced that the province plans to update its waste diversion act and regulations by June.  In order to do this, they are looking to create greater consumer awareness and a “simplified” and more “consumer friendly” recycling system.  (In addition to the 9 million fluorescent tubes disposed of in Ontario landfills annually, an estimated 7.2 million CFL bulbs will end up in Ontario landfills this year.)

For the time being there are two steps that Ontario businesses can take to help keep this pollution at bay; recycling and replacement.

Many Ontario based electrical wholesale companies now offer a recycling program for old fluorescent tubes.  Call around and ask.  While there can be a small cost to their programs you will have the knowledge that 98% of the fluorescent tube materials are safely recycled and you are keeping toxic mercury out of our environment.

Fluorescent-Tube-RecyclingAnother method is to permanently replace your fluorescent lighting with even more energy efficient LED lighting.  LED contains no mercury, gasses or other toxic pollutants.  LED replacements tend to save users over 50% on their hydro consumption while lasting much longer than fluorescent tubes.  The energy savings is important as it further cuts down the mercury emissions from our remaining coal-fired power plants (mercury is released into the environment when we burn coal).

There are many tremendous retrofit options available to Ontario businesses which can be quickly installed.  The Ontario Power Authority also offers rebates to help businesses with the cost and also help cut down the payback period.  Companies, such as Swantech Energy Solutions, act as Applicant Representatives and will look after all the OPA rebate paperwork for you. In some cases, businesses will see a return on their investment in months.  The long life span of LED replacements, high energy efficiency and current OPA rebates make LEDs an excellent investment given the continued rising cost of hydro in Ontario.

Whichever way you go, we all need to work together to reduce the amount of mercury that is currently ending up in Ontario landfills.  Please institute a responsible fluorescent recycling program at home and at work and let’s keep mercury out of our landfills.

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Environmentally Friendly

Global CO2 Emissions Decoupled from GDP. Have We Turned The Corner?

Last month the International Energy Agency reported that 2014 was ”the first time in 40 years in which there was a halt or reduction in emissions of the greenhouse gas that was not tied to an economic downturn.”  It looks like, globally, we’re finally turning the corner in the fight against global warming.

CO2-emissions-from-energy
Global CO2 Emissions from Energy 1984 – 2014

As the IEA looks toward forging a new global climate deal in Paris this December, their next Executive Director Fatih Birol announced that “For the first time, greenhouse gas emissions are decoupling from economic growth.”  While this is only the fourth time that CO2 emissions have flatlined or dropped from the previous year it is the first time this has not happened during a time of global economic weakness (early 1980’s, 1992 and 2009).

“For the first time, greenhouse gas emissions are decoupling from economic growth.” Global emissions of carbon dioxide stood at 32.3 billion tonnes in 2014, the same figure as 2013.  There is growing belief that the commitment and efforts to mitigate climate change may be starting to have a greater effect on reducing global emissions than had previously been thought.

global-GDP-and-CO2-emission
Global GDP & CO2 Emissions 1984 – 2014

Several factors have been pointed to as helping control last year’s carbon output, particularly the changing patterns of energy consumption in China and OECD countries.

In 2014 Chinese coal consumption fell by 2.9 percent, the first drop this century.  This was aided by an expansion in clean energy production and the shutting of their dirtiest power plants.  In addition, China is aggressively embracing greater energy efficiency, such as wide scale adoption of LED lighting technology.  China’s total CO2 emissions fell by 1 percent even as their economy grew by 7.4 percent.

Worldwide we’re seeing homes utilizing far more energy efficient fridges, stoves, lighting, and more.  Businesses are following suit with investments in energy efficiency.  This has lead to many countries beginning to see a decline in energy use on both a per capita basis but also in relation to GDP.

Clean-Energy-Investment
Clean Energy Investment 2014 & Total 2004 – 2014

Cars are also continuing to be cleaner and more efficient while many countries are pricing carbon using economic forces to make it more costly to release into the atmosphere.  In North America there is a continued move away from coal-fired power generation and an increase in the investment in gas-fired electricity generation.

Globally we’re seeing more and more investment in power generation from renewable energy sources such as hydropower, solar and wind.

All of this has contributed to us finally seeing a decoupling in the relationship between economic growth and greenhouse gas emissions.  “The latest data on emissions are indeed encouraging, but this is no time for complacency – and certainly not the time to use this positive news as an excuse to stall further action,” said IEA Executive Director Maria van der Hoeven.

“The latest data on emissions are indeed encouraging, but this is no time for complacency – and certainly not the time to use this positive news as an excuse to stall further action,” Those thoughts are echoed by environmental watchdog organizations who remain concerned that emissions are still far too high.  There is a push toward a global warming limit of 2°C, but many observers believe that this will still be disastrous.  Currently, we’re on the course for a 6°C rise in global temperatures – a figure that has been deemed to be potentially catastrophic.  Many scientists are saying that a rise of 1°C is the highest we should allow.  Anything greater is projected to have a widespread negative impact on huge human populations and major planetary ecosystems.

We’re on the right track, but this is only the beginning.  Global warming presents a clear and present danger to our planet, evidenced in the changing weather patterns we’re seeing.  Energy efficiency, renewable energy sources and responsible energy consumption should be our goal at home and in business.  In 2014 we turned the corner with the decoupling of economic growth from greenhouse gas emissions.  Now, let’s all do our part to start driving emissions down and leaving a cleaner, better planet for future generations.

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Technology Breakthrough

Fuel From Water – It’s Finally Here

We live in a time of incredible technological advances.  The breakthroughs of the past decade alone make me wonder about what’s to come in the next few years.  Many of these advances are aimed at reducing the world’s carbon output, providing us a cleaner planet to live on.  This past week German car manufacturer Audi announced that, along with their partner Sunfire, they’ve created e-diesel from water.

It’s not hard to imagine a future where vehicles are powered by batteries and hydrogen technology, but Audi’s discovery opens the door on a potential third way.  In addition, many applications exist for e-diesel beyond the automotive industry.

To make e-diesel, water is heated to form steam.  The steam is heated to over 800℃ and then broken down and separated into its constituent hydrogen and oxygen using a process called high-temperature electrolysis.  The extreme temperature allows the water to break down with greater efficiency.  The hydrogen is then sent into a reactor and combined with carbon dioxide, which can be captured directly from the air.  In the reactor, high pressure and high temperature cause the hydrogen and carbon dioxide to react and produce long-chained liquid hydrocarbons.  Hydrocarbons are the basic building block of all fossil fuels.  These hydrocarbons have been named ‘blue crude’.

Audi and Sunfire have developed the process so it can be powered exclusively by renewable energy.  The blue crude is then refined in a manner similar to the way standard crude oil is refined to produce e-diesel.  Audi and Sunfire have developed the process so it can be powered exclusively by renewable energy and with an efficiency of around 70%.

One of the most exciting aspects of this development is that the process used carbon dioxide, the most common greenhouse gas.  Carbon dioxide is known to be created largely by burning fossil fuels, now it can be used in the process of replacing these fossil fuels with a carbon-neutral fuel.

Conventional diesel fuel contains sulphur and other contaminants, e-diesel does not.  Sunfire’s Christian von Olshausen is quoted as saying “The engine runs quieter and fewer pollutants are being created.”

“If we can make widespread use of CO2 as a raw material, we will make a crucial contribution to climate protection…”  German Education and Research minister Prof. Dr. Johanna Wanka put the first five liters of e-diesel into her official car and, after taking it for a drive, declared to project to be a success.  The e-diesel can be mixed with regular diesel or used on its own.

“If we can make widespread use of CO2 as a raw material, we will make a crucial contribution to climate protection and the efficient use of resources, and put the fundamentals of the green economy in place,” Wanka said.

Now before we get too excited production is currently very limited at only about 160 litres a day.  Over the next few months the plant is set to produce more than 3,000 litres of the e-diesel but, if the e-diesel receives enough interest, plans are in place for a larger scale production facility.

It should be noted that a lot of energy is required to produce e-diesel and the German model utilizes only renewable resources for that (solar and wind).  To truly make this an e-fuel of global proportions the same environmentally friendly power technologies should be applied to the manufacturing process.

The good news is that with larger scale production Audi believes e-diesel can be produced and sold for the same price that regular diesel is selling at.

Fuel from water, it’s finally here.  Imagine driving down the highway knowing that all those diesel trucks, vans and cars are being powered by an environmentally friendly fuel.  It’s not that far off now.

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Energy Efficiency

OUCH! Hydro Rates Increase Again. Here’s A Way To Beat Them.

We all knew another hydro rate increase was coming.  Rate increases are a fact of life here in Ontario, where we’re in the second year of five continuous years of semi-annual hydro rate increases, and they’re putting the squeeze on businesses.

All businesses aim at making a profit; it’s why we are in business to begin with.  We look to grow sales, increase profitability, control expenses, increase benefits to our customers and so on.  Controlling expenses is always a challenge, especially when some expenses keep going up and up.

Remember the blackout August 13, 2003?  The average Ontario business was paying 6.5¢ per kilowatt hour (kW/h) of energy consumed.  As of May 1, 2015 the blended hydro rate (the all-in rate you pay based on consumption) for the average Ontario business will be over 15¢ kW/h.  Between 2014 and 2018 the average Ontario business will see their hydro rate rise in excess of 42%.

The news is worse for businesses operating primarily during daytime hours, hydro’s on-peak and mid-peak hours.  The rate for those hours is set to increase at a larger percentage than off-peak hours, further driving the blended hydro rate up.  We’re told that the higher peak rates are to encourage use of hydro during off-peak hours and to encourage conservation, but it’s nearly impossible to conserve during the hours you’re closed.  (Here are a few energy conservation tips for businesses.

Depending on your business, lighting can account for 25% to 75% of hydro consumed. Depending on your business, lighting can account for 25% to 75% of hydro consumed.  That’s a lot, but the good news is that lighting is also one of the easiest places for you to conserve energy.  The fact of the matter is that we all need to conserve energy, it’s good for the environment and it’s good for the bottom line.  In short, whenever your business conserves energy it’s a win-win scenario.

Occupancy sensors are a great start and are easily installed by an electrician.  These work well for bathrooms, break rooms, stock rooms and other areas that are often unoccupied for periods during the work day.  Another option is simply remembering to turn lights off when you leave a room.  Encourage staff to take part in this as part of an environmental initiative.  Combine this with a strong recycling program and your staff will appreciate the environmental contribution you’re making.

Natural light is a great energy saver too!  If you have windows take advantage of them.  Allow as much natural light to come in and limit the lighting you’re using.  You’ll be amazed at how much you can save by simply keeping the blinds open and the lights off.

Dimmer switches also help conserve energy.  Not all office/business lighting can be dimmed, but when the lights can be dimmed it will reduce energy consumption.  

Set timers for your lights.  Sometimes, in larger businesses, lights can be left on after the work day for janitorial services etc.  If these services are on a schedule set timers to automatically turn the lights off after the cleaners have finished.  Timers are also excellent for controlling energy consumption on outside signage.  Set the timers to turn those lights off overnight, after traffic dies down, and save energy.

We all know that fluorescent lights are energy efficient, but LEDs use 50% less energy and provide better light. Finally, retrofit your facility to energy efficient lighting.  By adopting new lighting technologies, such as LED, you’ll see an amazing decrease in your lighting expense.  LEDs consume up to 85% less hydro when compared to older halogen and incandescent bulbs.  We all know that fluorescent lights are energy efficient, but LEDs use 50% less energy and provide better light. 

Find an LED supplier who is able to access the Ontario Provincial rebates currently available for lighting retrofit projects.  You’ll achieve a quick return on your investment and continue to save for years to come.  In fact, with the long warranties of rebate qualified LEDs, you should expect to see a return your investment several times over during the warranty period alone.  In addition, you’ll have peace of mind knowing that you’re using a lighting method free of mercury or any other toxins and pollutants.

We are facing ever increasing hydro rates, but the news isn’t all bad.  The Province recognizes the need for energy conservation, particularly for businesses, and has established rebates to assist each and every Ontario business in making the move to energy efficient lighting.  You’ll save money and help the environment, which should take some of the sting out of the hydro rate hike.

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Energy Efficiency

Spring Energy Saving Tips for Ontario Businesses

Spring is in the air!  In the Province of Ontario that means one sure thing – another hike in your hydro rate is right around the corner.  Frustrating as it is, the best way to fight against higher bills is to increase the energy efficiency of your business.  Let’s take a look at a few tips on how to cut your energy consumption to become even greener.

Spring is a good time to have any rooftop HVAC units serviced.  Having your mechanical company perform a semi-annual service check will keep the unit running at peak efficiency.  Old worn belts, clogged filters, worn out motors and leaks in the Air Conditioning system all contribute to inefficiency and higher energy usage.  On top of semi-annual service, arrange for quarterly filter replacement.  Clean filters provide better work place air quality and will lower your heating/cooling operating costs by allowing your HVAC system to operate efficiently.

One of the best ways to cut energy consumption is to turn off all electronic equipment when it is not in use. Electronic equipment can be an energy killer.  One of the best ways to cut energy consumption is to turn off all electronic equipment when it is not in use.  Put together a plan to ensure that all electronic equipment is turned off every night and on weekends and holidays.  These savings will add up quickly.  If you have a piece of equipment that is only occasionally used keep it turned off until needed. 

Computers can silently chew through energy.  Encourage all staff to set their computers to sleep mode after 10 minutes of non-use or to turn off monitors when the computer isn’t in use.  Discourage screen savers as these continue to consume energy while the computer isn’t in use.  Make sure all fully charged laptops are unplugged.  AC adapters draw power continuously, even when the laptop is fully charged.  Plugging the AC power cord into a power bar, with an on off switch, allows you to quickly turn off the power bar and save energy.  As a side note, all AC adapters should be unplugged once the equipment is fully charged – this goes for cell phone chargers too!

While we’re on the subject of computers, if you need new computers consider laptops.  Laptops consume less energy than desktops and also offer the portability function to your staff.  Make sure to always look for computers that are Energy Star rated. This means they have been third party tested to meet efficiency standards.  In fact, no matter what equipment you’re purchasing always make sure it is Energy Star approved for efficiency.

It is estimated that by setting your air conditioning 3 degrees higher you will save around 10% on your cooling costs.  Once it’s time to start the air conditioning consider setting it for a higher temperature and using fans to move the air around.  It has been proven that a combination of a higher temperature and fans will provide the same comfort level while reducing energy consumption.  It is estimated that by setting your air conditioning 3 degrees higher you will save around 10% on your cooling costs.  When you are cooling your business make sure all windows and doors remain closed (this includes the loading dock), open doors lead higher energy consumption.  Programmable thermostats also help reduce energy consumption during the times when your business is unoccupied.

Change your lighting to energy efficient LED lighting (okay, you knew this one was coming!).  Not only will LED lighting consume less energy, while providing better light, they will cut down on air conditioning costs too.  For instance, if a furniture store is open for 70 hours a week and uses 200 125 watt halogen PAR 38s to light their store, they would save over $1000 a year, on their air conditioning costs, by switching to 200 15 watt LED PAR 38s.

Remember, it’s the cumulative effect of many efforts that will lead to a reduction in your energy consumption and a reduction in your hydro bill.  Think green, after all Spring is here!

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Environmentally Friendly

Stop Trashing the CFL!

First things first – the Canadian Football League is great.  Secondly, this post isn’t about the Canadian Football League, it’s about our moral obligation to help the environment.

The CFL I’m talking about today is the Compact Fluorescent Lightbulb, the ones we see every day in homes and businesses.  The concern is; what happens when they fail, what are you doing with the dead CFLs, how are you disposing of them?

Let’s back up for a moment and talk about what CFLs are.  They’re energy efficient lightbulbs that first came on the scene about 25 years ago.  You know the ones, they’re curly.  They are small fluorescent lights that replaced incandescent bulbs and helped reduce energy consumption.

The concern with CFLs is what is inside the bulb and what happens when we throw them out.   The CFL tubes are filled with argon and mercury vapor.  When electricity is introduced, through the integrated ballast at the base of the bulb, to the vaporous mixture the gas molecules are excited.  This produces ultraviolet light which, in turn, stimulates the fluorescent coating on the inside of the tube.  As this coating becomes stimulated it emits visible light.

…it is estimated dumping CFL bulbs into landfills introduces 30,000 pounds of mercury into the environment annually.

Here’s where the concern is – CFLs contain mercury (this also holds true for fluorescent tubes) and we need to make sure that the mercury stays out of landfills and out of the environment.

While it is true that each CFL bulb contains only a small amount of mercury it is the cumulative effect of millions of bulbs being incorrectly disposed of that has the potential to cause harm to our environment.   In the US it is estimated dumping CFL bulbs into landfills introduces 30,000 pounds of mercury into the environment annually.  It takes only 4mg of mercury to contaminate 7,000 gallons of fresh water.  That means the mercury from US CFL disposals alone is enough to contaminate every lake, river and stream in North America.

So let’s extrapolate back to Canada, at one tenth the population, and estimate that we’re adding another 3,000 pounds of mercury into the environment each year.  In fact, the Recycling Council of Ontario estimates that over 7 million CFL bulbs will end up Ontario landfills this year. It’s time to step back and stop this.

Every recycled bulb leads to a cleaner environment and it is the cumulative effect of all the recycling that helps keep the mercury out of the environment and an environmental disaster at bay.

The first way to stop this is to start disposing of CFL bulbs at recycling centres.  Many major hardware retailers now collect and recycle CFL bulbs as a free service to their customers.  Call them and find out.   Early adopters of these programs are companies like Home Depot and IKEA. You can also call your municipal recycling centre or waste management centre and ask where you can recycle your old CFL bulbs.  Every recycled bulb leads to a cleaner environment and it is the cumulative effect of all the recycling that helps keep the mercury out of the environment and an environmental disaster at bay.

After your old bulb burns out replace it with an environmentally friendly LED bulb.  LEDs contain no mercury or other toxins, consume less energy, do not emit UV light, do not flicker and hum, and will last far longer than your old CFLs.  As a side note, I always urge people to only choose Energy Star rated LEDs as these have all been third party tested for efficiency and longevity.

Now, what happens if you break a CFL bulb?  Remember, they have mercury vapour and argon inside.  Follow these steps to ensure a good cleanup with low environmental impact.

  1. Turn off your heating and cooling system so the fumes and gasses do not move freely throughout your home or office.
  2. Open a window for a minimum of 15 minutes to allow the room to properly ventilate.
  3. Put gloves on so you don’t touch any of the mercury powder. Using a piece of cardboard to scoop up the larger pieces of glass.
  4. Use tape, such as packing tape or duct tape to pick up the remaining smaller pieces of glass. Make sure all of the pieces, tape and cardboard are put in a plastic bag.  NEVER use a vacuum for cleanup.
  5. Using a damp paper towel wipe up the area. Place the damp paper towel in the plastic bag and seal the bag.

I’d suggest calling your municipality for advice on how to dispose of the remnants of the bulb.  Over time, with awareness, we expect to see collection centres accept this material.  Until then they may advise you to dispose of it in the garbage.

Remember, it’s the cumulative effect of all those fluorescent products ending up in the landfill that has the potential to cause major environmental damage.  Let’s all be responsible, help the environment and dispose of CFL bulbs properly.

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How LED Works

People in Ontario are really beginning to explore LED (Light Emitting Diode) lighting for business and home, and that’s a good thing.  Good for the environment, good for the wallet.  But I’m often asked ‘how do LEDs work?’  I think that’s a good starting point for my first blog post.

First a little history, and for that we go all the way back to the last century – the 1900s.  LEDs really aren’t a brand new technology that has just sprung up.  In the early 1900s a process, later to be called electroluminescence, was discovered when a researcher noticed how applying a current to a specific type of crystal diode created a faint light, and the material was not heating up.

This phenomenon sat idle until it was applied to the creation of the first LED lights in the 1950s.  At that time they were called semiconductor radiant diodes.  From there, over the next 60 years, scientists and engineers have learned to harness this light and we’ve arrived at the LED lighting technology of today.

Basically LEDs are small semiconductor chips.  They are made of two layers, each treated with different materials to give each their own property.  One layer contains a lot of high-energy electrons that it wants to give away, this is called the n-type layer.  The other layer has spaces for these electrons that it really wants to fill at a lower energy level, this is the p-type layer.  The combination of these two layers creates what is called a pn-junction.  These two layers form a diode, from the Greek di (two) and ode (way, or path).

….this junction creates a waterfall like effect: they can flow one way but can’t go back up the other way.

To the electrons, this junction creates a waterfall like effect: they can flow one way but can’t go back up the other way.  When the negative end of a circuit is applied to the n-type layer, the electrons flow between the two layers easily.  If you apply the negative end of the circuit to the p-type layer the flow is blocked.  So, like a waterfall the flow can only travel one way and not another.

Unlike a waterfall, which creates noise, the electrons flowing across the pn-junction of an LED release light.  As the electrons flow from the n-layer to the p-layer the energy levels of the electrons falls. This creates the release of energy in the form of photons, which we see as light.

So photons sounds very sci-fi, doesn’t it?  Well, it really isn’t, all light is made of photons, which are tiny particles of light that are too small to see individually.

How much light this creates depends on the difference of the energy levels of the two layers.  This is called the band gap.  By learning to control the band gap engineers figured out new ways to make LEDs and create light across the spectrum.

Now, we have LEDs that consume less than 20% of the energy of traditional incandescent and halogen bulbs.  Because there is no heated filament or unusual gasses required these LED lights last far longer.

The result is we’ve now moved to an extremely energy efficient method of producing light.  Now, we have LEDs that consume less than 20% of the energy of traditional incandescent and halogen bulbs.  Because there is no heated filament or unusual gasses required these LED lights last far longer.  LEDs do break down over time, but this takes a very long time.  We’re now seeing commercial LED luminaries with 50,000 hour and even 100,000 hours life expectancies.

The future looks bright (all puns intended) for LED lighting and if you’d like to explore this environmentally friendly, cost saving technology for your business or organization email us at [email protected] I’d love to help you lower your carbon footprint and reduce your hydro bill while providing you with better light.

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