As per @2StrokeDan's suggestion I'll use this thread to document the running cost of my Volvo EX30. I'll update here weekly.
Electricity cost R3.20/kWh, I charge up to 70% every time.
*Solar Cost excludes cost of Solar infrastructure and indicates what would have been spent for the Solar kWh at current Eskom rates.
Notes
The solar charge column indicates that I charged the car from solar as soon as my house batteries were full, but to prevent depleting the house batteries I revert to Eskom once the solar panels no longer sustain the load. This way I keep the house batteries exclusively for house use.
As can be seen my car uses quite a bit more power than that of @Vintage_Mania and @dirtWarp. I must add I am measuring the energy with a separate energy meter, i.e. I am measuring the total energy used by the car to recharge - not just the energy that is put into the battery itself. I expect the efficiency to be >80% but this figure I'll be able to calculate once I start monitoring the car's own consumption figure (which I'll do henceforth). This means that up to roughly 20% of the charging costs are lost to heat, etc.
An interesting tidbit, ICE cars are roughly 35% efficient (this varies greatly but is basically never above 40%), which means that only about a third of the money spent on petrol actually propels the car. The rest is lost to heat, etc.
Electricity cost R3.20/kWh, I charge up to 70% every time.
| Date | Odometer (km) | Distance (km) | Eskom kWh | Eskom Cost | Solar kWh | Solar Cost* | Charged kWh/100km | Shown kWh/100km | Cost/km |
|---|---|---|---|---|---|---|---|---|---|
| 3 Sept | 2466 | 101 | 24.3 | R77.76 | 0 | 24.1 | R0.77 | ||
| 8 Sept | 2614 | 148 | 37.6 | R120.32 | 0 | 25.4 | R0.81 | ||
| 13 Sept | 2706 | 91 | 24.23 | R77.54 | 0 | 26.6 | R0.85 | ||
| 16 Sept | 2765 | 60 | 17.05 | R54.56 | 0 | 28.4 | R0.90 | ||
| 21 Sept | 2906 | 141 | 36.02 | R115.26 | 0 | 25.5 | R0.81 | ||
| 28 Sept | 3029 | 123 | 29.23 | R93.54 | 0 | 23.8 | R0.76 | ||
| 01 Oct | 3087 | 58 | 12.18 | R38.98 | 0 | 21 | R0.67 | ||
| 06 Oct | 3208 | 121 | 25.85 | R87.72 | 7.27 | R23.26 | 27.4 | R0.72 | |
| 11 Oct | 3383 | 175 | 39.32 | 125.82 | 0 | 22.5 | R0.72 | ||
| 19 Oct | 3595 | 212 | 50.94 | 163.01 | 0 | 24 | R0.77 | ||
| 27 Oct | 3792 | 197 | 33.5 | R115.57 | 11 | R37.95 | 22.6 | 19.1 | R0.58 |
| 04 Nov | 3919 | 127 | 9.26 | R31.95 | 20.09 | R69.31 | 23.1 | 19.1 | R0.25 |
| 11 Nov | 4147 | 228 | 52.77 | R182.06 | 0 | 23.1 | 19.0 | R0.81 | |
| 18 Nov | 4290 | 143 | 22.46 | R77.49 | 9.717 | R33.52 | 22.5 | 19.0 | R0.54 |
Notes
The solar charge column indicates that I charged the car from solar as soon as my house batteries were full, but to prevent depleting the house batteries I revert to Eskom once the solar panels no longer sustain the load. This way I keep the house batteries exclusively for house use.
As can be seen my car uses quite a bit more power than that of @Vintage_Mania and @dirtWarp. I must add I am measuring the energy with a separate energy meter, i.e. I am measuring the total energy used by the car to recharge - not just the energy that is put into the battery itself. I expect the efficiency to be >80% but this figure I'll be able to calculate once I start monitoring the car's own consumption figure (which I'll do henceforth). This means that up to roughly 20% of the charging costs are lost to heat, etc.
An interesting tidbit, ICE cars are roughly 35% efficient (this varies greatly but is basically never above 40%), which means that only about a third of the money spent on petrol actually propels the car. The rest is lost to heat, etc.
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