Rainer Notter

25 years driving the energy transition across Europe — as founder, CEO, program leader, and technical strategist. I bridge CTO vision with cross-functional execution, having built virtual power plants, led IoT-driven transformations, and shipped energy trading platforms. Track record of taking complex, multi-stakeholder programs from ideation to delivery in startup and scale-up environments.

Product Director at Engrate (2025-02 – Present)

• Driving product strategy for an AI-native integration platform connecting energy companies, grid operators, and markets via clean APIs
• Managing concurrent workstreams across a distributed team — from ideation through delivery across Hamburg, Stockholm, and Vienna

Advisory Board · Founder & Managing Director at sun2wheel AG · n:lead GmbH (2021 – Present)

• Advising on V2G market entry and utility partnerships (sun2wheel); consulting and interim management for energy producers and suppliers across European markets (n:lead)
• Engagements include energy trading strategy, market entry, organizational restructuring, and process optimization

Head Energy Solutions at Helion Energy AG (2023-10 – 2024-07)

• Built the "energy company inside the installation company": product design, grid operator negotiations, billing and regulatory reporting for Switzerland's largest solar/heat pump installer
• Led a cross-functional team from zero to operational energy supply product in 10 months

Product Strategy Lead at Tibber (2022-01 – 2023-10)

• Drove German market expansion for Scandinavia's leading energy disruptor (now Europe's largest consumer VPP)
• Coordinated product teams across Førde, Stockholm, and Berlin: dynamic pricing, smart meter integration, customer communication across 900+ grid operators

CEO at Hotmobil Deutschland GmbH (2017-08 – 2020-07)

• Led 120 employees across 8 locations; full P&L responsibility for Germany's leading mobile heating provider
• Deployed IoT sensors on 1,200+ units for predictive maintenance; implemented Dynamics 365 ERP; drove digitization, restructuring, and HQ relocation

Founder & CEO at EEGY UG (2012-09 – 2021-09)

• Built three energy businesses from scratch: green electricity retail, apartment heating, tenant solar (Mieterstrom)
• Pioneered one of Germany's first wind-to-hydrogen projects (2012), feeding renewable H₂ into gas distribution networks

Head Energiewirtschaft / Interim CEO at Greenpeace Energy eG (2010-10 – 2012-12)

• Built gas business from zero; created Germany's first wind-gas product linking renewable electricity to heating
• Designed and operated a virtual power plant (hydropower + wind); managed wholesale trading portfolio

Head Consulting / Wholesale Manager at Trianel GmbH (2007-07 – 2010-11)

• Built portfolio management platforms for 100+ municipal utilities; led energy trading education programs
• Advised utility boards on strategy and process optimization; represented Stadtwerke in BDEW standards working groups

Project Manager Energy Logistics at SOPTIM AG (2000-03 – 2007-06)

• 7 years building energy market software during Germany's liberalization: billing, portfolio management, data exchange (EDIFACT/BDEW)

Project Manager SCADA / Industrial Automation at Bonnenberg & Drescher GmbH (1997-03 – 2003-09)

• SCADA systems and control engineering: sensor networks, PLC programming, real-time monitoring in industrial facilities

Executive Education in Machine Learning, NLP, Robotics – MIT Sloan (2019 – 2019)

Diploma in Chemistry – Southwest Germany (1993 – 1997)