Cheapest electricity plan for EV charging in Adelaide
27 retailers operate on Adelaide's SA Power Networks grid, and the price difference between them is larger here than in any other capital.
The short answer
623 residential plans serve Adelaide. Charge a Hyundai Ioniq 5 Long Range overnight over 12,000km a year and the annual cost ranges from $80.18 to $1,069.09 depending on the plan — a $988.91 gap, the widest of any capital in this comparison.
OVO Energy's The EV Plan takes the top spot at 4.09 cents per kilowatt hour overnight, a rate built for EV owners rather than general households.
Adelaide retailers ranked on overnight EV rate
Best plan per retailer on the SA Power Networks grid, cheapest first. A typical plan costs around $629.16 a year.
| # | Retailer | Plan | Overnight rate | A year | Per 100km |
|---|---|---|---|---|---|
| 1 | OVO Energy | The EV Plan | 4.09c | $80.18 | $0.67 |
| 2 | Origin Energy | Origin Night Shift - New & Move Customers only | 7.27c | $142.55 | $1.19 |
| 3 | CovaU | SolarMax SA Residential TOU | 15.00c | $294 | $2.45 |
| 4 | Globird Energy | WHOLESAVE Resi (Two Rate CTL) estimate-SAPN | 17.47c | $342.41 | $2.85 |
| 5 | Amber Electric | Battery + Solar: Variable Wholesale Prices (estimate) | 21.97c | $430.67 | $3.59 |
| 6 | 1st Energy | 1st Emerald - Time of Use + Controlled Load | 23.90c | $468.44 | $3.90 |
| 7 | Flow Power | Flow Home Battery+Solar+EV: Variable Prices (estimate) | 24.65c | $483.05 | $4.03 |
| 8 | Momentum Energy | Home Comfort Electricity | 26.30c | $515.48 | $4.30 |
| 9 | AGL | Residential Seniors Saver - New To AGL (No Exit Fee) | 26.92c | $527.63 | $4.40 |
| 10 | Kogan Energy | Kogan Energy for current FIRST members | 28.21c | $553.01 | $4.61 |
| 11 | Powershop | Power House | 28.21c | $553.01 | $4.61 |
| 12 | Diamond Energy | Diamond Everyday - Time of Use | 28.74c | $563.36 | $4.69 |
| 13 | Energy Locals Retail | Home Choice | 29.29c | $574.10 | $4.78 |
| 14 | Nectr | Nectr GreenPower TOU - August 2026 | 29.30c | $574.19 | $4.78 |
| 15 | Alinta Energy | HomeDeal Flow - Time of Use (Interval) | 29.59c | $579.96 | $4.83 |
SA Power Networks network, Hyundai Ioniq 5 Long Range at 14.7 kWh per 100km. Scale the per 100km column for your own car.
Where charging at midday beats charging overnight
6 Adelaide plans actually cost less if you charge at midday instead of overnight. OVO Energy shows the largest swing: $627.28 saved a year by moving the charge to the middle of the day.
| Retailer | Plan | Charging overnight | Charging midday | Difference |
|---|---|---|---|---|
| OVO Energy | The Basic Free 4 Plan | $784.10 | $156.82 | $627.28 |
| iO Energy | Smart Home | Free weekend energy | Controlled load | $659.27 | $101.82 | $557.45 |
| Flipped Energy | Freedom Switched On 2.2! | $772.57 | $249.38 | $523.19 |
| Kogan Energy | Kogan Solar Sharer | $626.68 | $140.14 | $486.54 |
| Powershop | Solar Sharer | $626.68 | $140.14 | $486.54 |
| Origin Energy | Origin Standing Solar Sharer | $626.67 | $140.14 | $486.53 |
Plans with free power windows
6 retailers in Adelaide give away power during a set window each day — more than any other capital — and OVO Energy's 28-hour weekly window is the longest of them.
| Retailer | Plan | Free window |
|---|---|---|
| OVO Energy | The Free 4 Plan | 28 hours a week |
| AGL | Three for Free (No Exit Fee) | 21 hours a week |
| Kogan Energy | Kogan Solar Sharer | 21 hours a week |
| Origin Energy | Origin Standing Solar Sharer | 21 hours a week |
| Powershop | Solar Sharer | 21 hours a week |
| iO Energy | Smart Home | Free weekend energy | Controlled load | 12 hours a week |
Checked on 11 September 2026
Adelaide figures come from the regulator's 11 September 2026 read and exclude supply charges, demand tariffs and sign-up discounts. Method: How we compare EV electricity plans.