Climate change demands solutions that meet people where they live—literally. 1KOMMA5° has built its entire business model around this idea, becoming one of Europe's fastest-growing companies in the residential clean energy space. Named after the critical 1.5°C threshold scientists warn we must not exceed, this German-founded company is on a mission to decarbonize homes one rooftop, heat pump, and battery system at a time.
What 1KOMMA5° Actually Does
1KOMMA5° isn't just another solar installer. The company has pioneered an integrated approach to home energy, combining photovoltaic systems, battery storage, heat pumps, and EV charging infrastructure into unified, intelligent energy ecosystems for homeowners. Their proprietary technology platform, Heartbeat, orchestrates these components in real time—optimizing when a home draws from solar panels, stored battery power, or the grid based on pricing, weather, and usage patterns.
Rather than treating solar, heating, and mobility as separate purchases, 1KOMMA5° positions itself as a one-stop shop for household electrification. This matters because the energy transition isn't just about generating clean power—it's about intelligently managing how that power is used, stored, and shared. Since its founding, the company has expanded rapidly across Germany and into other European markets, scaling through both organic growth and strategic acquisitions of regional installer networks.
Real Climate Impact, Measured in Rooftops
Every home that switches from gas heating to a heat pump, or from grid-only electricity to solar-plus-battery, represents a measurable reduction in carbon emissions. 1KOMMA5° has installed systems across thousands of households, directly displacing fossil fuel consumption in two of the most emissions-heavy parts of daily life: heating and transportation.
What sets the company apart is its systems-thinking approach. A solar panel alone helps, but a solar panel paired with a smart battery and a heat pump—all coordinated by intelligent software—can dramatically increase self-consumption of renewable energy and reduce a household's reliance on fossil-fuel-generated grid electricity. This is decentralized decarbonization at scale, and it's exactly the kind of infrastructure Europe needs to hit its climate targets.
Current Opportunities: Where You Could Fit In
1KOMMA5° is hiring across technical, commercial, and engineering functions, reflecting a company that's scaling fast while staying focused on execution quality. Currently open roles include:
- Category Manager (m/w/d) Installationstechnik – SHK, Elektro & Unterkonstruktion (Remote)
- (Senior) Analytics Engineer (m/f/d) (Remote)
- Werkstudent:in Technische Aufnahme für Photovoltaik & Energiesysteme – Hildesheim/Hannover
- Category Manager (m/w/d) B- und C-Teile (Remote)
- 1KOMMA5° Hamburg x ENPAL Sales Manager (m/w/d) – Hamburg
- Praktikant Indirect/Direct Procurement (m/w/d) – Hamburg
- Cost & Value Engineer (m/w/d) – Technical Procurement Expert, Power Electronics & Battery Systems (Remote)
- Principal Software Engineer (m/f/d) – Berlin
- Obermonteur (m/w/d) Wärmetechnik – Rosenheim
- Tech Business Partner (m/f/d) – Hamburg
This spread of roles tells you something important about the company: it needs both boots-on-the-ground technical talent (installers, on-site technicians) and sophisticated back-office expertise (procurement strategists, software engineers, data analysts). Whether you're a student looking for hands-on experience in Hildesheim or a senior engineer wanting to build data infrastructure in Berlin, there's likely a path in.
The generous mix of remote positions also signals flexibility—many strategic and technical roles can be performed from anywhere in Germany, which is a meaningful perk for professionals who want impact without relocating.
Why Climate-Minded Professionals Should Pay Attention
Working at a company like 1KOMMA5° means your daily work translates into tangible emissions reductions—not abstract sustainability reporting, but actual heat pumps installed and actual solar panels generating actual clean electricity. For engineers, this means building software that makes renewable energy more efficient and accessible. For procurement specialists, it means ensuring the supply chains behind the clean energy transition run smoothly. For installers and technicians, it means literally building the infrastructure of a decarbonized future.
The company's rapid growth also means career opportunities aren't static—new markets, new technologies, and new challenges are constantly emerging. For those early in their careers, this creates room to grow quickly. For seasoned professionals, it offers the chance to shape processes and systems at a company still defining its long-term trajectory.
If you're searching for a role where climate impact isn't a side project but the core business, 1KOMMA5° represents exactly the kind of company worth exploring. The energy transition needs both visionaries and executors—and this company seems intent on hiring both.
