Sustainable mining for beginners: How to get started with renewable energy

Are you a private homeowner with a photovoltaic (PV) system between 9 and 29 kWp? Then you know the problem all too well: In summer and on sunny days, your system often produces more electricity than your household consumes. The surplus flows into the grid – and you often receive only a fraction of its value, or nothing at all, when prices turn negative. At the same time, heating costs soar in winter. But what if you could not only monetize this surplus, but also use the generated heat for your home? Welcome to the world of sustainable Bitcoin mining. At Summit Mining, we make getting started easy and profitable, with the Canaan AvalonQ or the Bitcoin Ofen2 as your ideal partner.

The everyday life of a PV operator: opportunities instead of waste

PV systems are booming in Germany: Over 3 million households use solar energy, and systems ranging from 9 to 29 kWp typically cover 50-80% of your annual electricity needs. However, the surplus – often 30-50% of production – is often billed at a lower price or even curtailed, thanks to the Solar Peak Act of 2025, which combats negative pricing and grid congestion. While the new Solar Package 1 offers incentives such as simplified permitting and higher feed-in tariffs, it lacks flexible solutions for private surpluses. This is where Bitcoin mining comes in: It flexibly consumes electricity exactly when your PV system is producing and converts it into Bitcoin – without requiring you to purchase expensive, mandatory storage batteries.

Imagine: Instead of expensive gas or oil heating, you use the waste heat from your miner to heat your home. This saves up to 30% on your heating costs and makes mining a true all-rounder for homeowners and PV owners.

How to get started step by step: Easy and risk-free

As a beginner, you don’t need any engineering knowledge – we’ll guide you through:

1. Check your surplus: Use apps like PV*SOL or your inverter dashboard to measure your daily surplus.
2. Clarify the legal basics: Home mining is legal in Germany. No special permits are required for small setups; just check your EEG surcharge. Taxes on mining revenue? From 2025, clear rules will apply to crypto profits as private income. Consult a tax advisor!
3. Connecting hardware: Buy the optimal hardware for you from Summit Mining. Connect it to your PV inverter via a smart meter – the device app will automatically adjust consumption (e.g., only activate when there's a surplus). We're happy to support you with this.
4. Using heat: There are various ways to use heat, be it as heated exhaust air for room heating or as a water-cooled variant that can be directly integrated into boiler storage and heating circuits.
5. Optimize and earn: Start with a mining pool like F2Pool or BraiinsOS. At current BTC prices (as of September 2025), depending on your hardware, you can earn €5-15 net with 10 hours of daily operation—plus savings on heating costs.

Long-term strategy: HODLing for maximum returns and inflation protection

Once you've mined your first Bitcoins, the question arises: sell immediately or hold? Many beginners sell immediately to secure quick profits – but long-term holding, known in technical jargon as "HODLing" (Hold On for Dear Life), can be significantly more profitable. Bitcoin has historically demonstrated impressive value growth: From its launch in 2009 to September 2025, BTC achieved a cumulative increase of over 10,000%, with annual returns in strong years like 2020 (270%) and previous boom phases. In 2025 alone, BTC has achieved a return of around 12.5% ​​year-to-date, with highs exceeding $120,000 and forecasts for further increases to a possible $1,000,000 by 2030.

Why not sell? Bitcoin serves as an effective hedge against inflation, similar to "digital gold." With a fixed cap of 21 million coins, BTC reacts positively to inflationary shocks and protects your assets from currency devaluation—unlike fiat currencies, which can be devalued by monetary policy. Studies and investor surveys from 2025 show that 46% of global investors use Bitcoin as an inflation hedge, as it increases in value during times of economic uncertainty or rising inflation expectations. By holding your mined Bitcoins, you not only benefit from short-term mining income but also build a stable portfolio that is hedged against inflation over the long term. At Summit Mining, we utilize a HODL strategy, supported by secure wallets in our store.

The advantages: profit, comfort and sustainability

• Economical: Make full use of your surplus – instead of €0.07/kWh feed-in tariff, you earn €0.10-0.20/kWh through mining, plus heating savings. In the long term, HODLing increases your returns through potential BTC value growth.
• Environmentally friendly: 100% renewable electricity, CO2 savings through waste heat utilization – perfect for the energy transition.
• Future-proof: With a growing BTC market and German subsidies (e.g., KfW grants for smart PV use), the AvalonQ will pay for itself in 12-18 months.

Conclusion: Become a sustainable mining pioneer

As a PV operator with 9-29 kWp, you have the perfect setup for sustainable Bitcoin mining. The AvalonQ or the Bitcoin Ofen2 makes it easy: Use surplus power, heat with waste heat, and build your Bitcoin portfolio – ideally by HODLing as inflation protection. Get started today – contact us for a free consultation and your personalized starter package. The energy transition is waiting for you!

Note: This article is based on data as of September 2025 and is for informational purposes only. Consult a tax advisor if necessary.