How to apply for Internship Product Management Energy Products & Tariffs (m/f/d)

About 1KOMMA5°

1KOMMA5° builds a virtual power plant that connects solar, batteries, heat pumps, and e-mobility to the electricity market in real time. The company operates in over 80 locations worldwide and aims to move 1.5 million households to renewable energy by 2030. Working here means joining a product and tech team that treats energy hardware as one integrated software-controlled system.

About the role

This internship sits in the Global Product Management Team for Energy Tariffs, where you help develop and run tariff products across core markets. You work at the intersection of product, regulation, and commercial operations, using the Heartbeat AI platform as the base. The role is remote and full-time.

A typical day

A typical day might include reviewing tariff product data, reading regulatory updates for a core market, and joining remote product meetings with the Global Product Management Team. You could also help draft requirements or prepare commercial analysis for a new tariff product. Exact routines depend on the team, so ask about daily tools and meeting cadence in the interview.

Who 1KOMMA5° is looking for

• Currently studying or recently graduated in business, economics, engineering, energy management, or a related field.
• Interest in energy markets, tariffs, regulation, or virtual power plants, shown through coursework, projects, or prior internships.
• Comfortable working with product teams and commercial data; able to structure problems and communicate clearly in a remote setup.
• Willing to ask questions about regulatory details and product ownership instead of assuming answers.

Tips for this application

• Read the 1KOMMA5° product and tech page before writing anything, then mention one specific thing about Heartbeat AI or the virtual power plant in your application.
• Connect your background to energy tariffs or regulation. If you have no direct experience, describe a project where you analyzed pricing, policy, or a product trade-off.
• Because the role is remote, show in your CV or cover letter that you can work independently and communicate in writing. Give one concrete example.
• Use the exact job title in your application and address the Global Product Management Team for Energy Tariffs, not a generic hiring manager.
• If you have questions about the team, daily tools, or how interns split time between product and regulation, ask them in your cover letter or first interview instead of guessing.

What to cover in your cover letter

Explain why energy tariffs and regulation interest you, not just renewable energy in general. Show how you would support product ownership across core markets. Give one example of working with commercial or regulatory data. State clearly that you understand the role is remote and full-time.

Research before applying

• Study the 1KOMMA5° Heartbeat AI platform and how it connects solar, battery, heat pump, and e-mobility hardware to the electricity market.
• Look up the company's core markets and any public information on their energy tariff products.
• Read about virtual power plants and real-time electricity market trading so you can discuss the basics.
• Check 1KOMMA5°'s locations and recent news to understand their scale and current focus areas.

Likely interview topics

Based on the job description, expect questions about:

• How would you explain a virtual power plant to someone who has never heard of one?
• What do you know about energy tariffs in one of 1KOMMA5°'s core markets, and how would you research a new market?
• Describe a time you had to understand a complex rule or regulation and turn it into something usable.
• How would you prioritize product tasks when commercial and regulatory needs conflict?
• Why do you want to work on energy tariffs specifically, and what do you want to learn in this internship?

Common mistakes to avoid

• Writing a generic cover letter about renewable energy without mentioning tariffs, regulation, or Heartbeat AI.
• Claiming expertise in energy markets or product management that you cannot back up with a concrete example.
• Ignoring the remote and full-time nature of the role, or failing to show how you stay organized without an office.