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​Blog

EV Cost Case Study

18/6/2024

 
The Innes family From Sydney transitioned to an EV a year ago. Their vehicle of choice was a Hyundai Ioniq 5. It's their go-to car for local errands, but they've also used it for several road trips, even carrying four bikes!  They have covered 9,180 kilometres so far.

They have a 15-kw solar system and also a retail plan that offers free access to the grid during the middle of the day on weekends.
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Mr. Innes is keeping close track of all their charging costs to see how much money they're saving with the EV.
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Source of power
The below chart details the sources of all power used to charge the vehicle.  The vast majority, over 80%, has come from charging at home.
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Cost of power
However, while charging at home accounts for 80% of the power used it only accounts for 30% of the total costs spent.  This is primarily due to taking advantage of excess solar energy and free grid charging on weekends.

Supercharging, while only accounting for 12% of power consumed, accounts for 70% of the total costs incurred!  
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Comparison to ICE vehicle
So how does this compare to the Innes family’s previous Internal Combustion Engine (ICE) vehicle?
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Chart footnote
The ICE vehicle would have cost over $2,000 in fuel compared to the $192 for the EV, a staggering 12.1x uplift.

​However, when the cost and kilometres associated with supercharging are excluded, this difference between the EV and the ICE vehicle increases to a 42.2x difference!
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The above analysis does not take into account maintenance and servicing costs which would increase the cost gap between the EV and ICE vehicle even further.  EV’s have around 20 moving parts compared to over 2,000 for a petrol vehicle resulting in far lower service and maintenance costs.

Final word
The average passenger vehicle in Australia travels just 33.2 km per day meaning the vast majority of charging could conveniently happen at home.  So the experience of the Innes family is likely to be one that could replicated by many households around the country, even those without solar who can now take advantage of retail plans offering free access to the grid for charging during certain times of the day. 

ICE vehicle calculation based on the average unleaded fuel price in Sydney as per the NRMA website on 18 June 2024 and a fuel efficiency of 12L per 100km.  The fuel efficiency is based on the vast majority of kilometres being driven on short runs in a hilly area which is where the person subject to this analysis resides.

Cheapest Source of Power

3/6/2024

 
Australian households 🏠 are paying an average of approx. 35 cents per kWh for their electricity, a record high and it continues to rise 💸

10-15 cents of this cost relates solely to the use of the "poles & wires" to transport the electricity from where it is generated to your home; that's the cost a homeowner has to pay BEFORE factoring the cost of the electricity.

Now what is someone told you that you could lock in a price of just 5 cents per kWh for the next 20 years?!

Well you can do just that with a solar and battery system 😎 🔋
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Chart footnote
Solar and battery cost is based on actual data from My Energy Guide Founder’s household and assuming a 20 year life with $1,500 p.a. income from exporting excess energy.  It excludes any financing costs.  The solar and battery cost is for illustrative purposes only and it could materially differ depending on the household’s hardware, location and energy and travel demands. ​

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This website is provided for informational purposes only.  It does not constitute advice as to whether you should proceed with installing solar, batteries or other electric items.  You should perform your own due diligence prior to committing to the installation of any new equipment, and seek the opinions of appropriately qualified experts.  The data presented on this website is based on a number of assumptions. If different assumptions were used then the data presented and conclusions reached may differ materially. 
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