How to apply for (Senior) Technische Projektleitung (m/w/d) für New Energy Großprojekte - Raum Stuttgart - 1KOMMA5° Commercial Solutions GmbH

About 1KOMMA5°

1KOMMA5° Commercial Solutions GmbH helps commercial and industrial companies in Germany reach CO2 neutrality with new energy systems. The company works on photovoltaic rooftop systems, battery storage, charging infrastructure, energy management, and grid technology. The role sits in the Commercial & Industrial Solutions unit, which focuses on business and industrial clients rather than private households.

About the role

This is a technical project lead role for large New Energy EPC projects in the Stuttgart region. You own the technical side from the first site visit through to grid feed-in. You coordinate subcontractors on site, ensure technical and safety standards are met, and develop concepts with planning and engineering teams. You also manage stakeholders including clients and grid operators.

A typical day

A typical day could include a site visit to a commercial PV or storage project, coordination calls with subcontractors and the planning team, and a meeting with a grid operator about feed-in requirements. You might also review technical drawings for roof layout or string planning and document acceptance of work delivered. The mix depends on project phase, but on-site presence and stakeholder communication are regular parts of the role.

Who 1KOMMA5° is looking for

• Has hands-on experience with EPC projects in photovoltaic rooftop systems, battery storage, charging infrastructure, or energy management.
• Can lead technical coordination across planning, engineering, and subcontractors, including roof layout, string planning, low-voltage main distribution, transformers, and medium-voltage stations.
• Is comfortable with on-site construction supervision and acceptance of work delivered by subcontractors.
• Has a track record of stakeholder management with clients and grid operators, ideally in the Stuttgart region or wider Germany.

Tips for this application

• Name specific project types you have led: PV rooftop, battery storage, charging infrastructure, or energy management. Use numbers where possible (kWp, MWh, number of charging points).
• Mention your experience with grid operators and the grid feed-in process in Germany. This is a core part of the role.
• Highlight any experience with medium-voltage stations, transformers, or low-voltage main distribution. These are listed in the job description.
• State your connection to the Stuttgart region or your willingness to travel there for site supervision. The role is remote but tied to the region.
• Reference 1KOMMA5°'s focus on commercial and industrial clients, not private homes. Show you understand the difference in project scale and stakeholder setup.

What to cover in your cover letter

['Your technical ownership of EPC projects from first site visit to grid feed-in.', 'Your experience coordinating subcontractors and ensuring safety and technical standards on site.', 'Your ability to develop technical concepts with planning and engineering teams, including roof layout, string planning, and grid connection points.', 'Your stakeholder management with clients and grid operators.']

Research before applying

• Read 1KOMMA5°'s Commercial & Industrial Solutions page to understand their product scope: PV, storage, charging, energy management.
• Look up recent 1KOMMA5° projects or press releases about commercial or industrial New Energy installations.
• Understand the German grid feed-in process and typical requirements from grid operators for commercial PV and storage projects.
• Check the size and scope of typical EPC projects 1KOMMA5° handles for commercial clients to calibrate your answers.

Likely interview topics

Based on the job description, expect questions about:

• Walk through an EPC project you led from first site visit to grid feed-in. What was your role and what went wrong or right?
• How do you coordinate subcontractors on a construction site when technical or safety standards are not met?
• Describe your experience with medium-voltage stations, transformers, and low-voltage main distribution in a New Energy project.
• How do you manage stakeholders like grid operators when timelines or technical requirements change?
• What do you check during a roof inspection for a commercial PV system, and how does that affect string planning?

Common mistakes to avoid

• Do not focus only on residential PV experience. This role is for commercial and industrial projects with larger scale and different stakeholders.
• Do not ignore the grid feed-in and grid operator part of the role. It is a core responsibility.
• Do not claim remote work means no travel. The role includes on-site construction supervision in the Stuttgart region.