The energy transition is a dominant topic in Germany. The government, policymakers, financial actors, and research and development (R&D) organizations are working in joint efforts to achieve the desired clean energy transition goal. Therefore, the energy transition has already offered a unique opportunity to entrepreneurs, established players, service providers and others to adapt and develop new businesses. Valuable deep-tech and business model innovations took place in the energy sector with an increasing speed. To better understand and follow-up on recent developments, a data-driven approach to technology assessment is a promising option.