2010: A Tesla Roadster, a Vision, and the Beginning of REVOLUTION E

A Red Sports Car and an Uncomfortable Thesis
In autumn 2010, a red Tesla Roadster stood in front of the HUMMEL Systemhaus in Frickenhausen. License plate: ES FH 1202. Frank Hummel was one of the first owners of this electric sports car in Germany – at a time when electromobility was still dismissed as a niche topic by most decision-makers.
The local newspaper Nürtinger Zeitung reported on October 23, 2010, under the headline "Super Sports Car with a Power Outlet" about Hummel as "one of the first in Germany to drive the Tesla Roadster electric sports car." But the article documented far more than a test drive.
The 2010 Vision: Smart Grids and Mobile Energy Storage
What Hummel told the newspaper back then reads like a blueprint for the energy transition today:
"This is the beginning of a new era. The car will be developed into a mobile energy storage unit in the future. This means you can not only store surplus electricity but also feed it back into the grid when needed. This requires so-called smart grids that can manage energy largely automatically."
This statement describes exactly what is now discussed under the terms sector coupling, Vehicle-to-Grid (V2G), and bidirectional charging as the future of the energy transition – formulated by an entrepreneur, not a research institute, and 15 years before these concepts reached the mainstream.

Early Dialogue with Politics and Industry
From the beginning, Frank Hummel sought exchange with political decision-makers about the future of electromobility. The photo shows him with Steffen Bilger MP (CDU) – later Parliamentary State Secretary at the Federal Ministry of Transport and Digital Infrastructure – during a test drive in the Tesla Roadster. The lettering on the vehicle: >>100% elektro. What still required explanation back then is now on the political agenda.

Milan, February 11, 2011: Tesla Store Opening with Elon Musk
A few months later, on February 11, 2011, Tesla opened its first store in Italy – at Via Cerva 31 in Milan, just steps from the Duomo and the Galleria Vittorio Emanuele. It was Tesla's 17th store worldwide. Over 400 VIP guests from fashion, sports, and music were invited. Elon Musk personally delivered the opening speech.
Frank Hummel was invited as one of the early European Roadster owners. In a personal conversation with Musk, he already discussed bidirectional charging in 2011 – a topic that would only become a standard discussion point in the energy industry over a decade later.

From Vision to Business Model
The Tesla Roadster story is not an anecdote for Frank Hummel. It is the starting point of an entrepreneurial consistency spanning 15 years:
| Year | Milestone |
|---|---|
| 2010 | One of the first Tesla Roadsters in Germany |
| 2011 | Tesla Store opening Milan, conversation with Elon Musk about V2G |
| 2016 | HUMMEL Systemhaus expanded to full-service provider with REVOLUTION E |
| 2020 | Strategic sale to Züblin AG (STRABAG SE) |
| 2023 | Exit and founding of HSG HUMMEL Service Group |
| 2024 | Innovation HUB with over 1,000 m² in Frickenhausen, book "Highway to Climate Hell" |
What began as a personal conviction in 2010 is now the business model of REVOLUTION E: the holistic electrification of business locations across four sectors – electricity, heating, mobility, and process heat – orchestrated through the HSG platform with selected specialist partners.
Why This Matters for Business Leaders Today
The question business leaders face today is no longer whether to electrify, but how and with whom. Frank Hummel's story shows: those who recognize developments earlier than others and act consistently create an advantage that cannot be copied.

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