If you've ever wondered what it would take to decarbonize an entire continent's homes, one German company is betting the answer lies in bundling solar power, battery storage, heat pumps, and smart EV charging into a single, seamless system. That company is 1KOMMA5°, and in 2025, it's emerging as one of Europe's most ambitious players in the residential green energy transition.
What 1KOMMA5° Does
1KOMMA5° (pronounced "one comma five," a nod to the 1.5°C climate target set by the Paris Agreement) is a vertically integrated clean energy company. Rather than simply selling solar panels or heat pumps in isolation, the company designs, installs, and connects entire home energy ecosystems — combining photovoltaic systems, battery storage, heat pumps, and EV chargers, all orchestrated by their proprietary smart energy management software, Heartbeat AI.
This all-in-one approach is central to their mission: making clean, intelligent, and affordable energy accessible to everyday households across Europe. Instead of asking homeowners to piece together disparate technologies from multiple vendors, 1KOMMA5° acts as a single point of contact — from initial consultation and installation to long-term optimization of energy use.
Real Climate Impact, Household by Household
1KOMMA5°'s theory of change is refreshingly concrete: residential buildings account for a significant share of Europe's carbon emissions, largely due to fossil-fuel heating and grid dependency. By electrifying heating through heat pumps, generating renewable power on-site via solar, and using smart software to optimize when and how energy is stored or consumed, the company is directly attacking emissions at the source.
Since its founding, 1KOMMA5° has scaled rapidly across Germany and expanded into other European markets, installing thousands of integrated energy systems. Their Heartbeat platform doesn't just manage individual homes — aggregated across their growing customer base, it creates a distributed virtual power plant, helping stabilize grids increasingly reliant on variable renewable sources like wind and solar. This is the kind of infrastructure-level innovation that climate experts say will be essential for a fully renewable grid.
Current Opportunities at 1KOMMA5°
Growth like this requires people — lots of them, across very different skill sets. Right now, 1KOMMA5° has 10 open positions spanning engineering, skilled trades, customer service, and business development. Highlights include:
- Cost & Value Engineer – Technical Procurement Expert (Power Electronics & Battery Systems), a remote role for those who love optimizing supply chains for hardware that matters
- Technical Expert – Power Electronics & Battery Systems, also remote, for deep technical talent in energy storage
- Elektromeister für die technische Planung von Photovoltaikanlagen in Göttingen/Münster, ideal for licensed electricians ready to lead solar system design
- Trainer AC-Elektro and Trainer DC-Elektro roles, remote across Germany, for experienced electrical professionals who want to train the next generation of installers
- Junior Business Development Manager based in Munich or remote, perfect for early-career professionals eager to help scale climate tech
- Hands-on roles like Helfer Garten- und Landschaftsbau for heat pump and foundation work in Dortmund, plus a Werkstudent Lager- und Logistikmanagement position for students interested in logistics
- Entry points like a Praktikant:in Projektkoordination Wärmepumpe internship in Berlin, and Customer Service roles in Hamburg Nord
What stands out across these listings is the breadth of entry points — whether you're a seasoned electrical engineer, a student looking for practical logistics experience, or someone transitioning into climate tech from business development, there's a legitimate on-ramp. Many roles offer remote or hybrid flexibility, reflecting a company culture that seems to prioritize output and impact over rigid office presence.
Why Climate-Minded Professionals Should Pay Attention
For job seekers who want their work to translate into tangible emissions reductions — not just sustainability reports — 1KOMMA5° offers something rare: a business model where climate impact and commercial growth are the same metric. Every heat pump installed, every battery deployed, every home connected to Heartbeat directly reduces fossil fuel dependency and stabilizes the renewable grid.
The company's rapid European expansion also means employees are joining at a pivotal growth phase, with opportunities to shape processes, take ownership, and grow alongside the business rather than stepping into a fully bureaucratized machine. Combined with technical roles working on genuinely cutting-edge power electronics and AI-driven energy software, 1KOMMA5° offers both mission and substance.
If you've been searching for a workplace where "climate action" isn't a tagline but the literal business model, 1KOMMA5°'s current openings are worth a serious look. From skilled trades to software to strategy, this is a company building the physical infrastructure of the energy transition — one rooftop, one battery, one heat pump at a time.
