New PV calculator from 21energy shows how much more Bitcoin yields compared to feed-in tariffs

With the new PV calculator on 21energy.com, photovoltaic operators can With the new PV calculator on 21energy.com, photovoltaic operators can now quickly and easily calculate how much money or Bitcoins they could earn with their surplus solar power.

The calculator is aimed at people with existing or planned systems and shows an alternative economic potential for surplus electricity: Instead of selling the electricity to the grid at often low feed-in tariffs (from 6 to 8 cents per kilowatt hour), users can utilize their surplus electricity themselves using high-performance computers, so-called “Bitcoin miners,” and thus convert it into Bitcoins through so-called “mining.” The Bitcoins obtained can sometimes significantly exceed the value of the feed-in tariff. In addition, mining offers an exciting opportunity for all new PV owners who are no longer offered a feed-in contract.

A positive side effect is grid serviceability: by directly using the electricity produced by PV, it is not transferred to the grid and cannot lead to potential destabilization there. 

The calculation is carried out in three steps:

1. PV yield:  Based on location, orientation, inclination, and system size, the  individual solar yield is calculated precisely.

2. Electricity consumption: Depending on the type of household and annual consumption, the own consumption is estimated.

3. Mining with surplus electricity: The remaining PV surplus can be used for Bitcoin

mining. Alternatively, if available, it is fed into the grid at the current feed-in tariff.

At the end, users receive a detailed overview of revenues, payback periods, and opportunity costs compared to grid feed-in based on specific Bitcoin mining devices.

A new perspective on solar power

"Many, especially new PV owners, no longer receive a feed-in contract from their grid operator or are cut off after a certain volume. With our PV mining calculator, we show an alternative way to monetize by consuming the surplus electricity yourself," says Maximilian Obwexer, co-founder of 21energy.

The PV calculator is now available free of charge at https://21energy.com/de/pages/pv-calculator.

About 21energy

21energy develops and distributes innovative heating systems based on high-performance computers, known as Bitcoin miners:

These convert electrical energy into both heat and computing power, and thus income, through the mining of Bitcoins.

This means that 21energy customers "money with heating" and effectively save on heating costs as well as, when switching from oil or gas, considerable amounts of carbon dioxide.

The entire value creation process, from development to production and sales, takes place in Tyrol, Austria. Founded in October 2022, the start-up has already sold approximately 2,500 units of its heating system across Europe.