Cheapest electricity plans on the SA Power Networks network (SA)
For a household using 4,000 kWh a year with no controlled load, the cheapest plan on the SA Power Networks network is 1st Energy's 1st Emerald - Time of Use, at an estimated $1,839 a year ($1,839 if you miss its conditional discounts). The table ranks the cheapest plan from each of 27 retailers; choose another usage level, add controlled load, or show every plan, and it re-ranks. Every bill here is an estimate for the household described, worked out from the plan's published prices, not a quote.
Household: 4,000 kWh a year (medium; medium is the AER's Default Market Offer 2026–27 model annual usage and half-hourly daily profile for this network).
27 retailers' cheapest plans for a household using 4,000 kWh a year, cheapest first.
| # | Retailer | Plan | Bill a year | Without conditional discounts | Tariff | Supply c/day | Usage c/kWh | Feed-in c/kWh | Conditions | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1st Energy | 1st Emerald - Time of Use | $1,839 | $1,839 | Time of use | 145.75 | Peak 45.43Off Peak 26.29Solar Soak 13.75 | 1.00 | AER record | |
| 2 | Globird Energy | GLOHOME Residential (Flat Rate)-SAPN | $1,898 | $1,956 | Single rate | 117.70 | 38.17 (first 15 kWh a day)41.25 (above) | 1.00 | New customers only (retailer's website) | AER record |
| 3 | Kogan Energy | Kogan Energy for current FIRST members | $1,919 | $1,919 | Time of use | 103.05 | Peak 53.61Shoulder 16.25Off Peak 31.04 | 1.00 | AER record | |
| 4 | Powershop | Power House | $1,919 | $1,919 | Time of use | 103.05 | Peak 53.61Shoulder 16.25Off Peak 31.04 | 1.00 | AER record | |
| 5 | Ezi Power | Ezi Peak | $1,927 | $1,927 | Time of use | 139.82 | Peak 47.96Solar soak 24.88Off peak 18.63 | — | Needs a smart meter | AER record |
| 6 | ENGIE | SA ENGIE -Perks Plus Elec | $1,957 | $1,957 | Time of use | 180.05 | Peak 56.22Off-Peak 32.55Solar Sponge 17.04 | 1.00 | AER record | |
| 7 | Lumo Energy (SA) | Lumo Basic | $1,957 | $1,957 | Time of use | 118.80 | Peak 47.88Off-Peak 30.03Shoulder 18.18 | 1.00 | AER record | |
| 8 | CovaU | SolarMax SA Residential TOU | $1,971 | $1,971 | Time of use | 172.00 | Peak 58.78Off-Peak 35.17EV Off-Peak 16.50Free Usage 0.00 (first 50 kWh a day)Free Usage 35.17 (above) | — | Needs a smart meter | AER record |
| 9 | Flipped Energy | Freedom Switched On 2.2! | $1,978 | $1,978 | Time of use | 130.58 | Day 14.00Evening 64.28Overnight 43.36 | 2.00 | AER record | |
| 10 | Sumo | Sumo Stobie | $1,997 | $1,997 | Single rate | 156.64 | 35.63 | 0.00 | New customers only; Sign up and manage online | AER record |
| 11 | Momentum Energy | Home Comfort Electricity | $2,048 | $2,048 | Time of use | 167.42 | Peak 56.54Off-Peak 25.52Shoulder 32.67 | 0.80 | AER record | |
| 12 | Red Energy | Living Energy Saver | $2,109 | $2,109 | Single rate | 121.00 | 41.69 | 2.00 | prices checked on 2026-10-30: Red Energy's plan information page still offers this plan; its Energy Made Easy page gives 121.00c a day and 41.69c a kWh | AER record |
| 13 | EnergyAustralia | Flexi Plan | $2,116 | $2,116 | Time of use | 180.05 | Peak 56.22Off-peak 32.55Shoulder 17.04 | 3.00 | AER record | |
| 14 | OVO Energy | The Free 4 Plan | $2,126 | $2,126 | Time of use | 207.05 | Peak 41.91Off Peak 0.00 | 1.00 | AER record | |
| 15 | Flow Power | Flow Home | $2,129 | $2,129 | Single rate | 163.52 | 38.31 | 2.00 | AER record | |
| 16 | iO Energy | Smart Home | Free weekend energy | $2,159 | $2,159 | Time of use | 165.00 | Off-peak 8.00Peak 85.00Shoulder 37.00Free weekend daytime 0.00 | 0.00 | AER record | |
| 17 | AGL | Residential Smart Saver (No Exit Fee) | $2,162 | $2,162 | Time of use | 171.04 | Time of Use peak 53.41Time of Use Off Peak 30.92Time of Use Shoulder 16.18 | 1.00 | AER record | |
| 18 | Origin Energy | Origin Go Variable Ongoing | $2,162 | $2,162 | Time of use | 171.05 | Peak 53.41Off peak 30.92Shoulder 16.19 | 2.00 | AER record | |
| 19 | Tango Energy | Home Select | $2,167 | $2,167 | Time of use | 108.90 | Peak 51.32Off Peak 29.37Shoulder 39.05 | 0.00 | AER record | |
| 20 | Diamond Energy | Diamond Everyday - Time of Use | $2,230 | $2,230 | Time of use | 178.87 | Peak 56.09Off-Peak 31.62Shoulder 14.28 | 3.10 | AER record | |
| 21 | Nectr | Nectr GreenPower TOU - August 2026 | $2,253 | $2,253 | Time of use | 178.25 | Peak 55.66Off-peak 32.23Shoulder 16.87 | 0.00 | AER record | |
| 22 | Alinta Energy | HomeDeal Flow - Time of Use (Interval)Not updated since 2026-07-13 | $2,276 | $2,276 | Time of use | 180.05 | Peak 56.22Off-peak 32.55Shoulder consumption 17.04 | 0.50 | AER record | |
| 23 | Amber Electric | Standing Offer: TOUStanding offerNot updated since 2026-07-01 | $2,276 | $2,276 | Time of use | 180.05 | SA Power Time of Use Peak 56.22SA Power Time of Use Off Peak 32.55SA Power Solar Sponge 17.04 | 0.00 | AER record | |
| 24 | Dodo | Residential StandingStanding offer | $2,276 | $2,276 | Time of use | 180.05 | Peak 56.22Off Peak 32.55Solar Soak 17.04 | 1.00 | AER record | |
| 25 | Future X Power | SAPN - RESI Solar Sharer Offer FY27Standing offerNot updated since 2026-07-01 | $2,276 | $2,276 | Time of use | 180.05 | Peak 58.84Off Peak 35.17Solar Soak 19.66Free Usage Period 0.00 (first 24 kWh a day)Free Usage Period 19.66 (above) | 3.00 | AER record | |
| 26 | Energy Locals Urban | Standing OfferStanding offer | $2,322 | $2,322 | Single rate | 178.20 | 41.80 | 0.00 | AER record | |
| 27 | Next Business Energy | NBE Standing OfferStanding offer | $2,333 | $2,333 | Single rate | 180.00 | 41.91 (first 11 kWh a day)41.91 (above) | 0.10 | AER record |
Bills include the daily supply charge, any recurring fee and, unless you untick it, every discount that depends on how you pay (pay on time, direct debit); one-off credits such as sign-up bonuses are not counted. Prices are in cents; feed-in is what the retailer pays you for solar exports and is not in the bill, which assumes no solar. A plan marked “Not updated since” was last changed by its retailer more than 120 days before our fetch (92 on this network). Plans open only to some households (members, seniors, solar or battery owners, comparison-site customers, wholesale pass-through) are left out unless you include them.
12 plans on this network could not be priced
These are left out of every ranking above. 8 of them have a demand charge, which depends on a household's highest half-hour of use rather than how much it uses, so no annual estimate is fair to them.
| Retailer | Plan | Tariff | Why not priced | Source |
|---|---|---|---|---|
| iO Energy | Active Export | Single rate | every price is zero (a companion or export-only plan) | AER record |
| iO Energy | Electrify Export (Daily) | Single rate | every price is zero (a companion or export-only plan) | AER record |
| iO Energy | Electrify Export (Seasonal) | Single rate | every price is zero (a companion or export-only plan) | AER record |
| iO Energy | Seasonal Export | Single rate | every price is zero (a companion or export-only plan) | AER record |
| Alinta Energy | HomeDeal Extra - Demand Single Rate | Single rate | has a demand charge | AER record |
| Alinta Energy | HomeDeal Extra - Demand Single Rate + CL | Single rate · controlled load | has a demand charge | AER record |
| Alinta Energy | HomeDeal Flow - Demand Single Rate | Single rate | has a demand charge | AER record |
| Alinta Energy | HomeDeal Flow - Demand Single Rate + CL | Single rate · controlled load | has a demand charge | AER record |
| Alinta Energy | SolarBalance Choice - Demand Single Rate | Single rate | has a demand charge | AER record |
| Alinta Energy | SolarBalance Choice - Demand Single Rate + CL | Single rate · controlled load | has a demand charge | AER record |
| Alinta Energy | Standing Offer - Demand Single Rate | Single rate | has a demand charge | AER record |
| Alinta Energy | Standing Offer - Demand Single Rate + CL | Single rate · controlled load | has a demand charge | AER record |
How the household is chosen
Each network is priced for three households. Medium is the regulator's reference household: the AER's Default Market Offer 2026–27 usage and daily profile in NSW, south-east Queensland and SA, and the ESC's Victorian Default Offer 2026–27 usage (4,000 kWh) in Victoria. The ACT, Tasmania and regional Queensland have no default offer, so their medium is the AER's 2020 average for the distributor scaled to match the others. Low is half of medium and high is double. Usage is the same every day, so a seasonal price is weighted by the number of days in each season. A household with controlled load (a separately metered hot water system) adds the network's controlled load kWh, priced on the plan's cheapest controlled load rate. No solar export is assumed.
This is reference data worked out from published prices, not advice about which plan to choose. Each estimate assumes a stated household; a real bill depends on the household's own usage. Check a plan with your own usage at Energy Made Easy before you switch.
Deep Almanac is a secondary source and this page is provided for general information and reference. It is not financial, investment, legal, valuation, educational or other professional advice, and it is not a substitute for checking the original source. Each bill here is an estimate for a typical household's usage, worked out from the plan's published prices; your own bill depends on when and how much you use, so check a plan's estimate with your own usage at Energy Made Easy or Victorian Energy Compare, and confirm with the retailer that you can take it (some offer a plan to new customers only without saying so in the data), before you switch. You are responsible for any decision you or your software makes in reliance on this page. See our terms of use.