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Peak Demand Saver

We believe that integration of renewable energy – like energy produced from solar PV systems – combined with energy storage, is the next technological breakthrough that could help households and communities better manage their energy use and save on costs.

That’s why we’re leading the Energy Storage Trial at Alkimos Beach in collaboration with development partners Lendlease and LandCorp.

Heating and Cooling

Heating and cooling your home forms a pretty big part of your overall energy use, in fact by simply setting your heating to 19°C instead of 24°C in winter you could save up to $32/month^^, so it’s worth looking at ways to optimise your energy efficiency with the following energy saving tips.


  1. Don't crank the air conditioner

    It’s more energy efficient to heat or cool your house slowly over time, instead of turning the air conditioner up for ‘quicker’ results.

    Effort: You’ll get there (3 Stars)

  2. Keep the cold in and the heat out, or vice versa

    Door snakes are inexpensive and can help stop air escaping from the bottom of doors.


    Effort: Too Easy (1 Star)

  3. Try using a pedestal or ceiling fan instead of the reverse cycle air-con

    Fans are a much more energy efficient way to cool you down.

    Effort: Not too hard (2 Stars)

  4. Get your heater serviced regularly to keep it running efficiently

    Even cleaning the dust and fluff from the fan can save on your electricity costs in winter.


    Effort: You’ll get there (3 Stars)

  5. Pull on your pullover

    Heaters are great, but see if a good old jumper can warm you up first.


    Effort: Too easy (1 Star)

  6. Take advantage of the sun

    In winter, open your curtains in the middle of the day to let the warm sun in. In summer, use your blinds to block out the sun’s heat.

    Effort: Too Easy (1 Star)

  7. Rug up with extra blankets

    Put on some warm PJs and add a few extra blankets instead of an electric one.

    Effort: Too Easy (1 Star)

  8. Electric blanket on, room heater off

    Once you’re nice and cosy in bed, you probably don’t need to heat the whole room.


    Effort: Not too hard (2 Stars)

Laundry and other

Laundries, bathrooms and pools can use about 27% of your household energy usage. This mainly comes through the energy it takes to heat water, but these other tips could help you reduce your energy, and water use.

  1. If the sun's out, get your laundry out

    Clothes dryers use a lot of energy, so when you can, use your clothesline.


    Effort: Too Easy (1 Star)

  2. Clean out the lint filter of your dryer

    To keep your clothes dryer running efficiently, clean the lint filter after each load.


    Effort: Too Easy (1 Star)

  3. Wash your clothes in cold water

    The cold water cycle will reduce your heating costs and your clothes will stay brighter for longer. Win win.


    Effort: Too Easy (1 Star)

  4. Choose a washing machine with a good star rating

    Front loaders are generally more energy efficient than top loaders. Make sure you check the star energy ratings before you decide.

    Effort: Not too hard (2 Stars)

  5. Wash yourself quicker

    Take shorter showers is a common tip. An average a shower uses 12 litres of water every minute, so it makes sense.

    Effort: Too Easy (1 Star)

  6. Put your pool pump on a timer

    Pool pumps use a fair bit of energy, so run them on a timer to reduce energy.


    Effort: Not too hard (2 Stars) 

Computers and general appliance tips

These days we rely a lot on various appliances. The main way to save energy is to switch them off at the wall when you’re not using them.

  1. When charges aren't charging, switch them off

    Chargers slowly leak energy when they are left on, switch them off at the wall to save energy.


    Effort: Too Easy (1 Star) 

  2. Don't keep appliances on standby

    Appliances still use energy, so switch them off at the wall.


    Effort: Too Easy (1 Star)

  3. Lets the stars choose your new appliance

    The energy star rating is an easy way to quickly see how energy efficient an appliance is.


    Effort: Too Easy (1 Star)

  4. Consider upgrading really old appliances

    Old fridges and dishwashers are not generally as energy efficient as newer models. Check energy star ratings before buying new appliances.

    Effort: Not too hard (2 Stars)

  5. Let your computer's screen saver do its job sooner

    Adjust your computer’s eco-saver power settings so your screen switches off shortly after you stop using it.

    Effort: Too Easy (1 Star)

  6. Switch printers, scanners, modems and other peripherals off at the wall when not in use

    Put these devices on a separate power board so you can turn them off without affecting your computer.

    Effort: Not too hard (2 Stars)

  7. Light your workspace not the entire room

    Using a lamp to light just your workspace is energy efficient and can help you concentrate.


    Effort: Too Easy (1 Star)

  8. What to look for in a new computer

    Screen size matters. The bigger the screen, the more electricity is consumed, so choose appropriately.

    Effort: Too Easy (1 Star)

  9. Clean your dishwasher filter regularly

    Your dishwasher cleans dishes, not itself, cleaning the filter will make it run better.


    Effort: Too Easy (1 Star)

  10. Use a cold water connection for your dishwasher

    This will save on water heating costs.


    Effort: Too Easy (1 Star)

  11. Only fill your kettle with the amount of water you need

    The water you don’t use will just get cold and need to be heated again.


    Effort: Too Easy (1 Star)

Things you need to know

When switching to the Peak Demand Saver plan you’ll be asked to opt-in to a non-regulated tariff (we call this a non-standard contract). To help you make an informed decision based on your circumstances, we’ve outlined the difference between this and a regulated tariff (standard contract). You should make your own assessment of the terms and conditions.

See how a non-standard and standard contract compare (PDF 46 KB)

Read Peak Demand Saver plan Terms & conditions (PDF 276 KB)



*Compared to the standard A1 tariff . 

^ Compared to the standard Synergy Home Plan (A1) tariff . Savings represented are approximate and are calculated by applying the Peak Demand Saver Trial rates to average historic consumption, usage pattern and generation based on the available data since trial launch (April 2016) to February 2020 and comparing this to the charges that would have been incurred at the standard A1 (Home Plan) rates for the same period. All amounts are estimated savings and are provided for general information purposes only. While every care has been taken to make the information in the letter accurate, Synergy takes no responsibility for the accuracy of the information. This measure received funding from ARENA as part of ARENA’s Emerging Renewables Program.

^^Estimated savings based on the standard A1 tariff and cost data sourced from The potential savings calculation assumes for every 1°C adjustment of the temperature of air-conditioning closer to the outside temperature, the energy required for heating and cooling is cut by 5–10%. The potential savings will vary depending on individual circumstances including the star rating of the system, the size of the space being heated and how well insulated the space is.  



Results of the trial so far

The trial at Alkimos Beach has been running for over a year and the results continue to be promising for the future of WA’s energy. So far, as a community, Alkimos Beach Peak Demand Saver customers have saved a total of $53,020 off their collective energy bills since the trial started in April 2016. 

How much have households been saving per month?^

Households of four

Have been saving $47.49 a month on average.

Two-member homes 

Have saved an average $32.61 a month.

How long to pay back

How does the average Peak Demand Saver household perform?

Compare average savings for the Synergy A1 Tariff vs the Peak Demand Saver 



 Note:  The above graph is based on the annual average electricity consumption and export for properties participating in the Peak Demand Saver Trial at Alkimos Beach.




How long to pay back

A day in the life of a Peak Demand Saver home

Welcome to a day in the life of the ‘Smith’  Family home. They live in Alkimos Beach and started on the Peak Demand Saver Trial almost a year ago. This family of 4 has already seen a drop in their electricity bills since joining, reaping the benefits of their solar PV system as the solar credits they generate during the day covers much of their peak power usage in the evenings.


Note: The above graph is based on average consumption and generation for properties participating in Synergy’sPeak Demand Saver Trial.

 A day in the life of the Smith family household as at 14th May 2018

Age Daily routine
Karen Smith 39 After arriving home from work, Karen puts on a load of washing.
Allen Smith 39 After arriving home from work, Allen prepares dinner for the family.
 Luke Smith 15 After arriving home, Luke does homework on the family computer before playing his gaming console.
 Jessica Smith 11 Jessica watches TV while getting ready for school, then watches her favourite shows after school.

Note: the above 'day in the life of' table is a fictional example for illustrative purposes only.


Peak Demand Saver comparison example

Total daily power usage 16/4 kwh 16.4 kwh
Total daily cost $4.34 $6.38

Total daily power generated* 10.5 kwh 10.5 kwh

Solar credits used N/A 10kwh ($4.78)
 Excess daily solar credits  N/A  ($0.036)
 Daily REBS $0.75  N/A
 Daily supply charge  $0.95 $0.47
 Virtual storage fees  N/A $0.35
 Total Daily Bill $4.54   $2.38

*Average daily generation across course of the year