VNISH dev fee and electricity: a worked example

00:00

A higher hashrate can leave less money after electricity. This is why a firmware comparison needs more than a percentage increase.

VNISH downloads are free. Running the firmware includes a developer share.

We will compare three hypothetical profiles. These are teaching numbers, not hardware measurements or current mining revenue estimates.

00:20

For each operating state, record hashrate, wall power, your electricity tariff, revenue per terahash per day, and the applicable developer share.

Use the same currency and comparable measurement windows. State whether hashrate comes from the device or the pool.

Check the exact terms for the selected product and build. The public catalog does not provide one universal VNISH fee.

00:42

Our revenue input is before the fee being modelled. We reduce that input by the assumed developer share.

If you use actual credited revenue that already reflects this share, do not subtract it again. Double counting would make the comparison wrong.

00:56

Daily electricity cost is wall power in watts, divided by one thousand, multiplied by twenty-four hours and the tariff per kilowatt-hour.

Contribution after electricity is hashrate times revenue per terahash per day, times one minus the modelled fee, minus electricity cost.

This assumes a proportional fee on revenue. Confirm that it fits your data. This is contribution, not total profit.

01:20

For this example, electricity costs six cents per kilowatt-hour. Hypothetical gross revenue is five cents per terahash per day.

The baseline uses no modelled developer fee. Both alternatives use an illustrative two percent fee. Two percent is not a quoted VNISH rate.

All profiles run for twenty-four hours. These assumptions stay fixed while we change hashrate and power.

01:42

The baseline has one hundred terahashes per second and three thousand watts at the wall. It uses seventy-two kilowatt-hours per day.

At six cents, electricity costs four dollars and thirty-two cents. Hypothetical revenue is five dollars, leaving sixty-eight cents after electricity.

Efficiency is thirty joules per terahash: three thousand watts divided by one hundred terahashes per second.

02:05

Alternative A raises hashrate by fifteen percent, to one hundred fifteen terahashes per second. Power rises five percent, to three thousand one hundred fifty watts.

Daily energy is seventy-five point six kilowatt-hours. Electricity costs four point five three six dollars. Efficiency improves to about twenty-seven point three nine joules per terahash.

02:27

Before the illustrative fee, revenue is five dollars and seventy-five cents. After two percent, it is five point six three five dollars.

Subtract four point five three six dollars of electricity. The contribution is one point zero nine nine dollars per day.

That is forty-one point nine cents more than the baseline. This is a result of these assumptions, not a forecast for your hardware.

02:50

Now keep the same higher power, but raise hashrate only five percent. Alternative B produces one hundred five terahashes per second.

Revenue after the illustrative fee is five point one four five dollars. Electricity still costs four point five three six dollars.

The remaining contribution is zero point six zero nine dollars. More hashrate, but seven point one cents less per day than the baseline.

03:14

The baseline leaves sixty-eight cents. Alternative A leaves one point zero nine nine dollars. Alternative B leaves zero point six zero nine dollars.

A beats the baseline; B does not. The word faster alone cannot tell you which comparison will win.

03:29

Alternative A adds zero point six three five dollars of daily revenue after the fee. It also uses an extra three point six kilowatt-hours.

Divide the extra revenue by the extra energy. The crossover is approximately seventeen point six four cents per kilowatt-hour.

This is where the two profiles tie under fixed assumptions. It is not the tariff where the whole mining operation becomes profitable.

03:52

At twelve cents per kilowatt-hour, the baseline contribution becomes negative three point six four zero dollars per day.

Alternative A is negative three point four three seven dollars. A is still ahead by twenty point three cents, while both results are negative.

Better than the other profile and positive after electricity are different tests.

04:11

The existing ROI ASIC calculator handles energy, electricity cost, and joules per terahash. It does not calculate developer fees or full profitability.

Use it for that part of the comparison. Keep the revenue and fee arithmetic separate, and preserve all inputs so someone else can reproduce the result.

04:30

Before acting, check the exact fee terms, the revenue basis, wall power, and comparable measurement windows. Do not deduct the same fee twice.

The comparison excludes cooling, overhead, other fees, downtime, equipment cost, financing, and taxes.

Published by ROI ASIC. Educational animation with synthetic narration. Sources and calculator are in the description. No hardware benchmark is claimed.