e-Wolf GmbH

e-Wolf GmbH was a German manufacturer of electric vehicles and later, a developer of energy storage technology. Founded in 2008, the company gained recognition for its ambitious plans to produce high-performance electric sports cars, most notably the e-1 roadster and the Alpha-2 (originally e-2) supercar. After ceasing automobile production in 2016, the company was acquired by Solarwatt and rebranded as Solarwatt Innovation GmbH, focusing on stationary battery storage for photovoltaic systems . In 2024, the original brand and leadership were revived as an independent engineering service provider for battery technology under the name E-Wolf .

History

Foundation and Early Ambitions

e-Wolf was established in July 2008 as a subsidiary of the Maiworm Group . The company’s stated goal was to develop extreme-performance electric sports cars that could rival traditional internal combustion supercars. They leveraged partnerships with technical institutions such as the Institute of Lightweight Structures and Polymer Technology (ILK) at the TU Dresden and the Saxon Centre for Lightweight Construction (LZS) to focus on advanced lightweight engineering .

The Frankfurt Debut (2009)

e-Wolf made its public debut at the 2009 Frankfurt Motor Show (IAA), unveiling two distinct concepts:

• e-1: A single-seat, street-legal electric roadster. Built on a lightweight chassis weighing just 500 kg (1,102 lbs), the e-1 featured a carbon-fiber composite structure. It was powered by a 150-horsepower AC induction motor, allowing acceleration from 0-62 mph in under 5 seconds and a top speed of 143 mph. The e-1 was offered for sale at a price of €150,000, though its lightweight chassis restricted driver weight to approximately 150 lbs .
• e-2 Concept: A futuristic supercar design inspired by Ferrari Enzo and Lamborghini styling cues . At the time, e-Wolf claimed the e-2 would utilize four in-wheel electric motors producing a combined 400 kW (544 hp) and 1,000 Nm of torque, with a target weight of just 900 kg .

The Alpha-2 Supercar (2011-2012)

By mid-2011, e-Wolf announced that the production version of its supercar would be renamed the Alpha-2, with a planned release in 2012 . While the concept boasted four motors, the production specifications were revised to feature two electric motors producing a combined 375 hp and 800 Nm of torque . Despite the reduction in power from the original concept, the 900 kg weight allowed for a 0-100 km/h (0-62 mph) time of 3.9 seconds and a range of up to 300 km (186 miles) .

The Alpha-2 was priced starting at approximately €245,000, with a higher-spec version reaching €375,000 . The company also hinted at potential motorsport involvement, including a possible entry at the 24 Hours of Nürburgring . Ultimately, the Alpha-2 did not reach mass production.

Pivot to Energy Storage and Acquisition

Shift in Focus

By 2014, e-Wolf had shifted its business model from manufacturing cars to supplying battery modules. The company began providing lithium-ion battery systems, specifically to Solarwatt for their “MyReserve” home energy storage unit . e-Wolf sourced its battery cells from the German manufacturer Li-Tec Battery GmbH .

Acquisition by Solarwatt

In April 2016, the photovoltaic company Solarwatt GmbH fully acquired e-Wolf . The acquisition led to the creation of a technology center called Solarwatt Innovation GmbH, based at e-Wolf’s former headquarters in Frechen, Germany. As part of this transition, the production of automobiles and the sales exhibition were discontinued, though the workforce was retained by the new parent company .

Revival (2024)

In October 2024, eight years after the acquisition, original managing director Olaf Wollersheim executed a management buy-out (MBO) of the company’s core operations . The firm was re-established under the name E-Wolf, returning to its roots as an independent entity.

Unlike its previous incarnation as a car manufacturer, the revived E-Wolf operates as an engineering service provider and developer for industrial clients. The company specializes in the development, testing, and certification of battery modules, battery management systems (BMS), and complete battery storage systems for third-party customers. The company remains based at the Euronova-Campus in Hürth, near Cologne, with approximately 30 employees .

Products

Automotive

• e-Wolf e-1 (2009): A lightweight, single-seat electric roadster.
• e-Wolf e-2 / Alpha-2 (2011): A high-performance electric supercar prototype.

Energy and Micromobility

• Battery Storage: Modules and complete systems for residential and industrial use (under Solarwatt Innovation).
• Electric Scooters: e-Wolf also produced a line of electric two-wheeled scooters as part of its early vehicle portfolio .