James & Vilija

Here is the next tip in our “Don’t be an Eel with Energy” challenge.

Leading on from the last post regarding your personal environmental footprint I have recently come across a few articles that try to establish the total cost of everyday objects.

The first is a quick analysis of the “true cost” of imported bottled water performed by a Sustainability Engineer and MBA Pablo Päster. The analysis calculates the total amount of water used and green house gases emitted to import bottle to the United States. Whilst the numbers won’t be the same for other geographical areas they do go to show you how much impact little things can make. From the article

The total amount of water used to produce and deliver one bottle of imported water is 6.74kg (5kg + 20g + 1kg + 720g)! And the amount of GHGs released amount to 250g (93g + 4.3g + 153g), or 0.25kg, or 0.00025 tons.

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Here is the next tip in our “Don’t be an Eel with Energy” challenge.

The interesting thing that I have observed recently is the HUGE increase in media exposure environmental issuse have received. The new awareness of human activity is brillant but it does not actually change anything. Actions do make a difference, even the smallest change multiplied by 3 billion becomes huge.

One thing to understand is actually how many resources each and everyone of us uses. Our environmental footprint so to speak. There are many different ways to estimate your footprint. Amongst the easiest are the following websites. (more…)

Here is the next tip in our “Don’t be an Eel with Energy” challenge.

With summer in full swing in the southern hemisphere and not far off in the northern one luxury of cheap electricity is the liberal use of Air Conditioners. Whilst undoubtedly useful for some when extreme weather hits the need for an Air Conditioner is often a consequence of less than optimal housing design.  A recent study has also found that air conditioners can in fact make the outside temperature hotter by upto 2°!  (See the end of this post for more info)

Simple modifications can reduce and even eliminate the need for Air Conditioners;

• Installing/upgrading insulation in the ceiling and walls will stop your house heating up when its hot outside.
• Installation of awnings on the outside of the windows will prevent direct sunlight hitting and entering the house. Well designed awnings will block summer sun, yet allow winter sun in for warmth.
• On hot days, ensure you keep all doors and windows closed. Close the curtains to keep the sun out and door snakes to stop hot drafts from entering through gaps. When it does cool down at night, open the doors/windows to let the cool air into the house.
• If you have older windows/doors, consider fitting foam to help them seal and keep out hot air. You can buy the foam at hardware stores and is like sticky tape so is very easy to install.
• In place of an Air Conditioner install/use Ceiling fans. They are the most energy efficient form of cooling and are the cheapest to purchase, cheapest to run. They operate quietly and are suitable for rooms of all sizes.

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Here is the next tip in our “Don’t be an Eel with Energy” challenge.

Two of the biggest users of energy in a standard home are the fridge and the hot water heater.  Why, because these are two devices that run 24 hours a day, 365 days a year.  It is estimated that upto 40% of a households greenhouse gas emissions come from electric hot water heaters.  This equates to about 4 tonnes of gas a year!

Fortunately, there are many easy and inexpensive (with the exceptions of replacing the unit) options to reduce the impact of your hot shower.

• Change Units - Next time your hot water service stops servicing you with hot water consider replacing it with a more efficient unit.
  • Solar Hot Water - By installing a Solar hot water service, you can sleep comfortably at night knowing that you are emitting nearly 0 green house gasses
  • Heat Pump  - A new type of hot water unit uses the same principal as a fridge in reverse to heat water.  However, for the same reasons that a fridge is inefficient (when trying to remove heat), a heater is actually more efficient. Click here for an example unit. 
  • Gas - Natural gas high efficiency water heaters produce around two-thirds lower greenhouse emissions than electric heaters
• Switch to Green power - By using “Green” electricity you can minimise the impact of your electric hot water service.  Before you do, check our Green Electricity Watch which reviews and rates the different “Green” electricity plans from all the different energy suppliers.  This ensures that you are getting what you paid for and are not just handing over money for nothing.
• Turn the temperature down - If you risk burning yourself with the hot water from your tap, your hot water service is set to high.  Turn it down to 40-45°
• Use cold water for the laundry - There is very little need to use hot water when doing the washing.  By simply washing your clothes in cold water you can reduce your need for hot water
• Reduce wasteful use- By fixing leaking water taps, avoiding using the hot water taps for washing hands and short uses, keeping plumbing well maintained, turning off the hot water unit whilst you are not at home for long periods (ie: on holidays)

Sources - Renovation Nation (The Age), Energy Australia

Photo courtesy of flickr user alexfittyfives

Here is the second tip for our “Don’t be an Eel with Energy” challenge.

Initial Cost - Now $low, long term $0

Traditional incandescent lights were first invented over a 100 years ago and today still remain popular as they are generally the cheapest light fittings to buy in a shop. However the true cost of these fittings is not accurately represented by the cost at the checkout. Incandescent lights a horribly inefficient, around 5% meaning 95% of the energy used by them is lost in heat.

However, for many years now, a significantly better solution has been readably available. Compact fluorescent lights which work by the same principle as the long tube fluorescent lights used in offices etc… are around 20% efficient. This is 4 times better than normal incandescent which means 75% less power for the same light and 75% less running costs. The other advantage of them is that they last upto 15,000 hours of use compared to roughly 1000 for incandescent. This means you won’t have to change that hard to reach globe nearly as often if you replace it for a Compact Fluorescent.

So, heres the weekly challenge, try to change as many lights to Compact Fluorescents as possible. Yes some can’t be changed because they require special light globes but 90% can be. The initial cost can be a little off-putting but if you buy one at a time with your weekly shopping in a very short time your entire house can be using Compact Fluorescents.

Update - I read an article during the week of a new invention that allows you to reduce the amount of stand-by power usage easily. In essence it is a remote controlled hard power switch that you can use to remove all power to all devices in the house if you want or a select group of devices. It is a great idea making saving energy even easier. Check out “Bye Bye Standby” here.

 UPDATE!!!!: It looks like it might be announced soon that traditional Incandescent light bulbs may be banned in Australia from 2009.  (Article - The Age)  Why not try to ban them ourselves by the end of 2007!

Photo courtesy of flickr user TaranRampers…

Here is the first tip for our “Don’t be an Eel with Energy” challenge.

Goal - Reduce your energy use by 10%

Cost - $0

Think of all the things in your house that sit there, plugged into the wall all day, every day. Most, if not all of these consume a little bit of power even if they’re not in use. Things like TVs, DVD/VCR Players, Computers, Stereos, Microwaves, Mobile Phone Chargers, Laptop chargers, etc… have a standby mode that allows you to turn them on with a remote control. Whilst in standby, these things still sip power. A little bit of power times 5 things times 24 hours a day times 365 days a year equals a significant amount of power. Estimates put this vampire usage at between 5% and 10% of a households energy use.

If you turn off everything when you are finished using it by unplugging it or turning off the power you can achieve your 10% reduction in one simple move!

Photo courtesy of flickr user lecasio

Whilst the weather has been a favourite topic of conversation of people for years, it has become a little more “exciting” this year. The longest/biggest drought on record… The warmest winter that I can remember… Dinosaurs were killed by global warming…

As people with large egos and big eyebrows sit on their hands talking discussing if the Greenhouse effect has anything to do with the weather, I propose we follow a different route.

As all Australians are aware, over the last several years there has been a big push to reduce the amount of water used through public education programs, advertising, restrictions, financial incentives, etc… Why don’t we try this for energy? Hence the title.

Don’t be an Eel with Energy

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