Home Mining Economics at Aussie Power Prices: The 2026 Breakeven

There’s a persistent myth that home bitcoin mining in Australia is “dead.” It isn’t. What’s dead is running an Antminer S19 in your spare room on peak retail tariffs. The new generation of low-power hobby miners — Bitaxe Gamma, NerdQaxe++, Avalon Nano — use between 15 W and 200 W and are designed to live on a desk, under a solar array, or on a controlled-load tariff.

The question isn’t “is mining profitable?” It’s “at what kWh price does my miner cover its costs, given network conditions, pool choice and variance?” This article uses a dated network snapshot and illustrative tariff bands; your bill is the source of truth for your power price.

The one equation that matters

Mining profitability reduces to one line of maths:

Daily profit (AUD) = (daily BTC mined × AUD/BTC) − (miner power in kW × 24 × AUD/kWh)

Everything else is noise. Let’s plug in conservative 2026 assumptions and see what falls out.

Fixed inputs (snapshot taken 1 August 2026):

• Estimated network hashrate: ~902 EH/s (mempool.space mining API)
• BTC/AUD price: AU$89,692 (CoinGecko price API)
• Block reward: 3.125 BTC (post-halving)

This simplified model uses the block subsidy only. Transaction-fee revenue can increase gross rewards; pool fees, payout mechanics, rejected work, downtime, hardware cost and tax reduce or change the realised result.

Per-miner inputs:

Miner	Hashrate	Power draw	Efficiency
Bitaxe Gamma 1.2 TH/s	1.2 TH/s	17 W	14 J/TH
Bitaxe Ultra 500 GH/s	0.5 TH/s	12 W	24 J/TH
NerdQaxe++ 4.8 TH/s	4.8 TH/s	75 W	16 J/TH
Avalon Nano 3S	3 TH/s	150 W	50 J/TH

Daily BTC expected (pooled)

For pooled mining (FPPS), daily BTC expectation scales linearly with your share of the network:

Daily BTC = (your hashrate / network hashrate) × 144 blocks × 3.125 BTC

Running the numbers for a Bitaxe Gamma at 1.2 TH/s against 902 EH/s of competition:

1.2 TH/s ÷ 902,158,211 TH/s × 144 × 3.125 BTC ≈ 0.00000060 BTC/day

At AU$89,692/BTC that’s ~AU$0.054/day of gross subsidy revenue. Scale up from there.

Miner	Hashrate	Daily gross (AUD @ $89,692 BTC)
Bitaxe Ultra	0.5 TH/s	$0.022
Bitaxe Gamma	1.2 TH/s	$0.054
NerdQaxe++	4.8 TH/s	$0.215
Avalon Nano 3S	3.0 TH/s	$0.134

Those numbers look brutal — and they are if you pay AU$0.35/kWh. The revenue side is fixed by the network; the only variable you control is the denominator.

Power costs: what Aussies actually pay

Retail electricity in Australia varies by network, retailer, meter and time band. The table below is illustrative, not a quote and not an AEMO dataset. Check the usage rate on your bill and compare current plans through the Australian Government’s Energy Made Easy service (participating jurisdictions) or Victorian Energy Compare. The AER publishes the Default Market Offer; Victoria has a separate Victorian Default Offer.

Tariff type	Typical AUD/kWh	Where it applies
Peak retail (anytime)	$0.28 – $0.40	Sydney, Brisbane, Melbourne flat-rate plans
Shoulder / off-peak (ToU)	$0.18 – $0.25	Most ToU plans 10pm–7am
Controlled load	$0.15 – $0.22	Hot-water / dedicated circuit tariffs
Tasmania standing	$0.28 – $0.32	Tas hydro retail
Off-peak controlled (TAS)	$0.14 – $0.18	Dedicated controlled-load circuits in Tas
Solar self-consumption	~$0.00 – $0.05	Panels on your roof, export tariff < usage cost
Solar export feed-in (illustrative)	$0.04 – $0.08	Example opportunity-cost band; use the rate on your plan

For rooftop solar, use your actual feed-in credit as the opportunity cost. At a 5 c/kWh export rate, a 17 W miner run for 24 hours gives up about AU$0.020/day in export credit; at this snapshot’s network inputs its gross subsidy expectation is about AU$0.054/day, before pool fees, downtime, hardware and tax.

Breakeven table for each Bitaxe scenario

The question becomes: what AUD/kWh makes each miner break even? Solve for kWh_price = daily_gross / (power_kW × 24).

Miner	Daily revenue	Power × 24 (kWh)	Break-even kWh price
Bitaxe Ultra	$0.022	0.288 kWh	$0.078/kWh
Bitaxe Gamma	$0.054	0.408 kWh	$0.132/kWh
NerdQaxe++	$0.215	1.800 kWh	$0.119/kWh
Avalon Nano 3S	$0.134	3.600 kWh	$0.037/kWh

Reading across:

• A Bitaxe Gamma covers electricity below about 13.2 c/kWh on these inputs.
• A Bitaxe Ultra needs about 7.8 c/kWh.
• The assumed NerdQaxe++ profile needs about 11.9 c/kWh.
• The assumed Avalon Nano 3S profile needs about 3.7 c/kWh.

Those are electricity-only break-even points, not investment returns. Subtract pool fees and downtime, and include the purchase price before describing a setup as profitable.

The pool-choice multiplier

The pooled-FPPS numbers above are a gross mathematical expectation before pool fees. Solo mining (e.g. Parasite Pool or ausolo.ckpool.org) starts from the same expected block value for the same valid work, but variance, fees and payout rules differ.

• Probability of a Bitaxe Gamma solo-mining a block in any given year ≈ (1.2 TH/s / 902 EH/s) × 52,560 blocks ≈ 0.0070%
• Expected subsidy value per year ≈ 0.000218 BTC ≈ AU$19.60/yr at AU$89,692/BTC.

For pooled at the same hashrate before fees: AU$0.054/day × 365 = about AU$19.60/yr.

Gross expected work is the same before pool rules, but net results are not automatically identical: solo and pooled services charge different fees and use different payout methods. Solo mining gives this example miner roughly a 0.0070% annual chance of finding a block; the subsidy alone would be about AU$280,288 at the snapshot price, plus transaction fees. Most years pay zero.

One tail risk pooled miners ignore: orphan blocks. If two miners find a block within seconds of each other, only one makes it into the chain — the other is orphaned and pays nothing. Historically this hits ~0.1% of all blocks. For a pooled miner it’s invisible (the pool absorbs the loss). For a solo miner it means zero payout on a block you genuinely solved.

Worked example: Sydney bitcoiner with rooftop solar

Say you live in Northern Beaches, run a 6.6 kW rooftop array, and typically export 20 kWh/day of excess back to the grid at the 5 c/kWh feed-in tariff.

Opportunity cost of exporting: 20 kWh × $0.05 = AU$1/day

Divert a Bitaxe Gamma + NerdQaxe++ from that export (~2.21 kWh/day combined at the assumed power draws):

• Forgone export revenue: 2.21 kWh × $0.05 = about AU$0.110/day
• Gross subsidy expectation: $0.054 + $0.215 = about AU$0.269/day
• Electricity-only margin: about AU$0.158/day, or AU$58/year, before pool fees, downtime, hardware and tax.

This example is a comparison of gross expected mining value with a forgone export credit. It is not a guaranteed return and excludes the purchase price.

The TL;DR

1. Normal retail usage rates: all four example profiles lose money on electricity alone at rates above 13.2 c/kWh.
2. Low-cost or controlled-load power: compare your actual rate with the device’s dated break-even point; do not assume every off-peak plan qualifies.
3. Solar excess: compare against your actual feed-in tariff. The Avalon example still needs an opportunity cost below about 3.7 c/kWh.
4. Pooled vs solo: gross expectation starts from the same work, but fees and payout rules differ; solo adds extreme variance.
5. Recalculate often: price, hashrate, fees, uptime and power rates all move.

The broader point: solo-mining economics in 2026 Australia is entirely a kWh-price story. Pick the right tariff (or better, the right paddock of solar) and it works. Pick the wrong one and you’re space-heating your office for the price of a gym membership.

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Network and price inputs captured 1 August 2026 from the linked APIs. They are a dated snapshot, not live data or financial advice. Recalculate with current inputs and your actual electricity bill before making a purchase or changing a tariff.

Frequently Asked Questions

Is home bitcoin mining profitable in Australia in 2026? +

Using the dated assumptions in this article, a 17 W Bitaxe Gamma's electricity-only break-even is about AU$0.132/kWh before pool fees and hardware cost. A normal residential usage rate is therefore a loss; low-opportunity-cost excess solar may cover electricity, but profitability depends on your actual bill, uptime and pool terms.

What's the single biggest lever for profitability? +

Electricity cost per kWh. Hashrate and efficiency are secondary. Moving from a peak retail rate to daytime solar or off-peak flips most Bitaxes from marginal to profitable overnight.

Should I run a Bitaxe on solar only? +

Compare the miner's break-even price with your actual feed-in tariff. Excess solar is not free: its opportunity cost is the export credit you give up, and any switching, battery or control equipment also has a cost.