Saturday, 31 May 2014

Efficiency of Electric Cars


Electric vehicles are known to be very efficient. Cars with internal combustion engines are not, losing most of their energy as heat. EV advocates have been saying this for years, and there is a ton of data about the efficiency of gasoline and diesel cars. But electric cars are newer and there are few of them, so we've had less documentation...until now. Some Belgians have been given the opportunity to study a fleet of five cars.
There were Peugeot Ion models, exact clones of the Mitsubishi i-MiEV (European version), and the people monitoring them were from Laborelec, with support from Brussels' Vrije University, which has a facility dedicated to automotive technology. The study was funded by Electrabel, the Belgian utility. It lasted two years, but the first part of the story was to define a methodology. A precise, dedicated monitoring system was developed, and things only got started when it received a full approval from the car manufacturer.

Tuesday, 20 May 2014

Save Electricity in the Bathroom


Investing in an energy-efficient showerhead will not reduce your shower experience, just your electricity bill.

- Do not let the hot water run unnecessarily. Use cold water to wash your hands instead of hot water.

- Use a basin plug when washing.

- Shower instead of bathing. You will save up to 40% in water and use 5 times less electricity than heating bath water.

- Switch to a low-flow, energy-efficient showerhead. If the water pressure in your house is low, rather use an aerated showerhead instead of a flow restrictor. The minimum pressure on your geyser should be more than one bar.

- How to check whether your existing showerhead is energy- and water-efficient:
  • Hold a bucket under the showerhead for 12 seconds.
  • Measure the amount of water in the bucket with a measuring jug.
  • If more than 2 litres has collected, your showerhead is inefficient and should be replaced by a low-flow, energy-efficient showerhead.

Friday, 16 May 2014

Save Electricity in the Kitchen


The easiest way to save electricity in the kitchen is to use specialised appliances for the appropriate tasks. For examples, always make toast in a toaster instead of using the oven.

COOKING

- Ensure the oven door is kept closed until the food is done. Constantly opening and closing the oven door dissipates heat, and electricity is wasted in reheating the oven.

- Only use pots and pans that completely cover stove plates. Also keep stove plates and reflectors clean to ensure all the energy is being used to cook the food.

- Use a pressure cooker when preparing foods that take a long time to cook. It will speed up the cooking process and save electricity.

- Turn off the stove before you’ve finished cooking. Hot plates retain heat and will continue to cook your food while saving electricity. Alternatively, bring food to the boil on the ‘high’ setting and then turn down the plate to simmer until cooked. Keep the lid on the pot to retain heat.

- Use the microwave for small to medium amounts of food. Leave the large meals to a conventional oven.

- When using a kettle, boil only as much water as you need.
- Invest in a Hot Box for approximately R150 and save up to 60% on cooking costs. A hot box insulates your cooking pot so that it retains the initial heat. Foods such as rice, porridge, soups or stews can be brought to the boil on the stove and then placed into the Hot Box to continue the cooking process. Alternatively, you can also simply wrap the pot in a blanket. The blanket will keep the heat in and the food will continue to cook.

- Buy a stove with a convection oven / The other best choice is to use a gas hob with an electric oven, or a gas ring and electric hotplate, from an environmental and financial point of view.

REFRIGERATION

- Don’t open the fridge door unnecessarily or leave it open for too long. Cold air sinks so it literally falls out of the fridge, and so your fridge has to start again. An empty fridge has to work hard to keep things cold so put bottles of water in the fridge as these ‘hold onto the cold’ – equally, an overfull fridge also has to work too hard.

- Let hot food cool down before putting it in the fridge. It will require less electricity for further cooling.

- Empty your fridge and switch it off when you go on holiday.

- Defrost your freezer regularly. This will ensure it runs more efficiently.

- Have the seals in your fridge replaced to keep the cold air in.

DISHWASHING

- Washing dishes by hand can use twice as much electricity as a dishwasher.Dishwashers use up to nine times less water than hand washing.

- Only use the dishwasher when it’s full.

- Link the dishwasher to the cold water supply. The dishwasher heats the water itself and only requires hot water for one wash and one rinse cycle. If the dishwasher is linked to a hot water tap, it will draw power for the full duration.

- Turn the dishwasher off before the drying cycle. Use a cloth to dry the dishes/ let them drip-dry.

- When buying a dishwasher: Choose a model that uses less water. A water efficient dishwasher uses up to 50% less water than a conventional one, which means 50% less water to heat up.

- Choose a model with a no-heat air-drying feature to save even more electricity/an option not to use the dryer.

Wednesday, 14 May 2014

PowerSafer

Save electricity with a PowerSafer - a device which cuts power to appliances left in standby mode


PowerSafer Logo

Many televisions, DVD players, games consoles, HI-FIs etc continue to use electricity even when they are switched off using the remote control and left in stand-by mode. A significant amount of energy (and money) could be saved if everyone physically turned off or unplugged these appliances when not in use. On average in the UK standby power* is responsible for more than 10% of domestic electricity usage. This means the average household pay out well over £30 per year for wasted electicity.
You can use a UK Power Meter to measure how much electricity you electrical appliances use in standby.

PowerSafer is an innovative German product which has the effect of turning off appliances at the main power button, but still permits the remote control to be used to turn them back on again.

PowerSafer


PowerSafer

PowerSafer (pictured above) is simply plugged into the wall power point, and the appliance plugged into the PowerSafer via a standard 3-pin socket. PowerSafer can be used to with any appliance which has a physical on/off switch, and a remote control. After the appliance is put into standby modewith the remote control, PowerSafer separates it completely from the power supply.

PowerSafer is currently available in two models PowerSafer TV (PS 1.1) for controlling one television, and PowerSafer Hi-Fi & AV (PS3.m) which will control TV's, DVD players, games consoles, hi-fi equipment, and home theatres. (The new PSX model is mentioned at the bottom of this article.)

PowerSafer PS3.m can be used with up to four electrical appliances at the same time. The unit is extended by using a multi block connected to the PowerSafer socket.

Benefits of PowerSafer

In addition to the obvious benefit of saving electricity (and therefore saving money and reducing emissions), the life of electrical appliances can be increased by 15% if they are not left in standby for hours every day. 

In a typical home PowerSafer should pay for itself easily within one year just in cost of electricity savings.

How Does PowerSafer Work

When an electrical appliance is put into stand-by mode there is a detectable drop in power used. 10 seconds after PowerSafer observes this drop in power it cuts the electricity supply to the appliance (by breaking a relay contact). While in this off mode, PowerSafer itself consumes <0.3 Watts of electricity.

PowerSafer has an infra-red detector. When a remote control is used nearby, PowerSafer automatically switches on sending power to the electrical appliance(s). If, for example, you typically press the power on button on the TV remote control to switch on the television, with PowerSafer you may have to press the button twice - once to wake up PowerSafer sending power to the television, and once to control the television which will still be instandby mode.

When the appliances are on, PowerSafer itself uses approximately 8 Watts of electricity.

PowerSafer PSX


PowerSafer PSX

At the end of May 2007 a new PowerSafer model will be launched in the UK - the PSX (pictured above). This will offer all the benefits of the currentPS3M model pictured earlier plus lightening and current surge protection. 

Monday, 12 May 2014

Save Electricity when Doing Laundry

Appliances in the laundry room hike up your monthly bill. Cut electricity costs by investing in energy-efficient appliances with modern settings.

WASHING MACHINE
- Only use your washing machine once a full load of dirty laundry has accumulated. Automatic washing machines use the same amount of electricity for a full load as they do for a single item.

- Use cold-water or lower heat settings as often as possible.Wash bed linen at 60* (instead of 90*) to cut back on the amount of electricity you use.

- Skip the pre-wash cycle for clothes that aren’t particularly dirty. This can cut down hot water usage by up to 20%.

- Never overload your automatic washing machine. Overloading will reduce the cleaning action. Varying the sizes of garments in a full load improves the cleaning action by allowing free circulation.

- Take advantage of special features on your washer that can save money. For example, soak cycles remove stubborn stains in one wash cycle.

- Invest in a front-loading washing machine instead of a top loader. It uses less water and costs less to operate. Also ensure the new machine offers a variety of water temperature settings.
TUMBLE DRYING
- Hang your clothes outside to dry. If possible, avoid using a tumble dryer altogether. Do your laundry on a sunny day, or use an indoor drying rack to dry your clothes.

- Remove excess water before putting clothes in the dryer. This minimises the drying times required.

- Dry multiple loads of clothes consecutively. Your dryer will be warm already so you’ll save energy.

- Make sure the lint filter in your tumble dryer is cleaned.

- If you’re buying a new tumble dryer, choose one with Electronic Humidity Control (EHC). It shuts the machine off automatically when clothes are dry instead of relying on a timer.
IRONING

- Only iron what really needs to be ironed. Certain clothing will appear ironed with careful folding.

- Iron large batches of clothes at a time. This saves the iron from needing to be reheated.

- Complete the last of your ironing with the iron switched off. An iron consumes as much energy as ten 100W light bulbs so let some of that stored energy work for you.

- Only use distilled or boiled water in a steam iron. This will keep it clean and energy efficient.

- Invest in a thermostatically controlled iron to prevent it from becoming hotter than you need.

Sunday, 4 May 2014

Eco Kettle

Save electricity with an efficient eco kettle with temperature control


After the original energy efficient Eco Kettle, and the next generation Eco Kettle 2 - Chrome launched in August 2009, the new improved Eco Kettle 3 is now (June 2011) available.

Energy Efficient Eco Kettle 3

The new Eco Kettle 3 features the same dual chamber design as Eco Kettle 2 enabling it to be filled with 1.5 litres of water, but only heat as much water as you actually require. It also comes with the same high spec chrome finish. The new clever feature Eco Kettle 3 offers is temperature control.

Almost all kettles are designed to be filled with water, turned on, and then run until the contents are boiling. There are however many situations where water at boiling point is too hot, and so heating it that much is just a waste of energy - for example, coffee is best made with water heated to only 90 degrees Celcius, and some speciality teas are best brewed with water heated to just 80 degrees Celcius. Eco Kettle 3 therefore has three temperature settings - 80 degrees, 90 degrees, or boiling. You just select the temperature setting you require, press the button, and the kettle will automatically turn off when the water is at the desired temperature.

The new Eco Kettle still has the 360° base - i.e. the cordless kettle can be put onto the base facing in any direction for convenience, a washable limescale filter, and Strix steam control and boil-dry protection. It also has internal illumination, illuminated buttons, and audible 'ready' signal, and a locking lid.

Eco Kettle 3 is supplied with the usual 12 month warranty.

According to independent trials, Eco Kettle 3 uses an average of 31% less energy than any other kettle.

Thursday, 1 May 2014

Ways To Save Electricity

Find out how you can save save electricity in your home - Help the environment and save money.
Where do we use the electricity in our homes?
Every year electricity gets more and more expensive. Read on to find out how you can save electricity and money with this handy selection of energy saving tips.

Electricity Usage Monitors


The basic figures contained within a monthly or quarterly electricity bill do not give you much information as to where your electricity is going - they just tell you how much you have used in total during that period. Therefore it is well worth considering purchasing an electricity usage monitor and using it to see exactly where all your hard-earned money is going.

One great way to find out how much electricity each of your household appliances and electronic devices uses is with a power/energy meter.

Owl CM160 USB wireless energy monitor

Alternatively consider investing in one of the latest wireless energy monitors which show you exactly how much money your total home or office electricity usage is costing you - in real time. For example: Owl CM160. These meters can help you reduce your electricity consumption by as much as 20% simply by showing you what you are using.