If you've been following the renewable energy sector in Europe, you've likely come across the name 1KOMMA5°. Founded in 2021, this German clean-tech company has rapidly become one of the most talked-about players in the residential energy transition space, and this year marks a pivotal phase of growth as they scale operations across Germany and beyond.
What Does 1KOMMA5° Do?
1KOMMA5° builds and delivers complete "Heartbeat" energy systems for homeowners — combining solar photovoltaic installations, battery storage, heat pumps, EV charging infrastructure, and smart energy management software into a single, seamless package. Rather than asking customers to juggle multiple contractors and disconnected technologies, 1KOMMA5° acts as a one-stop shop, handling everything from consultation and design to installation and long-term maintenance.
The company's name itself is a nod to the Paris Agreement's goal of limiting global warming to 1.5°C — a mission baked directly into their brand identity. Their proprietary software platform, Heartbeat AI, intelligently manages energy flows within a household, optimizing when to draw from solar panels, batteries, or the grid to maximize efficiency and savings for homeowners.
Driving Real Climate Impact
1KOMMA5°'s business model is fundamentally about accelerating the decentralized energy transition — moving power generation away from fossil-fuel-heavy centralized grids and into the hands of individual households. By making solar, storage, and heat pump technology accessible and easy to adopt, the company is helping thousands of families cut their carbon footprints while reducing dependency on volatile energy markets.
This year, 1KOMMA5° continues to expand its footprint across Germany and into other European markets, having already installed renewable energy systems for tens of thousands of households. Each heat pump installed reduces reliance on gas heating, and every solar-plus-battery system installed shifts demand away from fossil-fuel generated electricity. At scale, this translates into meaningful reductions in household carbon emissions — exactly the kind of grassroots, infrastructure-level change the climate crisis demands.
Beyond the environmental impact, 1KOMMA5° is also reshaping the skilled trades landscape in Germany, creating a new generation of green jobs in installation, engineering, and technical sales — professions that are essential to any serious energy transition.
Current Opportunities at 1KOMMA5°
With rapid growth comes real hiring demand, and 1KOMMA5° currently has 10 open positions spanning technical trades, sales, logistics, and corporate roles across multiple German cities. Open roles include:
- Helfer (m/w/d) Garten- und Landschaftsbau – Wärmepumpen & Fundamentbau – Hildesheim
- Lager- und Logistikkoordinator (m/w/d) – Düsseldorf
- Sales Manager (m/w/d) – Photovoltaik, Wärmepumpe & intelligente Energiesysteme – Singen, Balingen, Konstanz, Nagold, and Kiel/Lübeck/Flensburg
- Growth Manager Revenue Operations (m/w/d) – Hamburg
- Bauleiter (m/w/d) SHK für Wärmepumpenprojekte – Frankfurt am Main
- (Senior) Content Manager (m/w/d) – Remote
This breadth of roles reflects the company's hybrid nature — part clean-tech startup, part skilled-trades employer. Whether you're a tradesperson passionate about hands-on installation work, a sales professional who loves helping customers make impactful decisions, or a remote-first content strategist who wants to communicate the climate story to a broader audience, there's likely a role that fits.
Employees often describe the culture at 1KOMMA5° as fast-paced, mission-driven, and refreshingly non-bureaucratic for a company of its size. Because 1KOMMA5° operates as a vertically integrated company — controlling everything from manufacturing partnerships to installation crews — employees get exposure to the full lifecycle of renewable energy deployment, a rarity in the industry.
Why Climate-Minded Professionals Should Pay Attention
For job seekers who want their daily work to translate directly into climate impact, 1KOMMA5° offers something increasingly rare: tangible, measurable results. Every solar panel mounted, every heat pump commissioned, and every battery system activated represents a concrete step away from fossil fuel dependency — not an abstract corporate sustainability pledge, but infrastructure in the ground.
The company's rapid scaling also means genuine career growth potential. Early-stage hires in previous years have moved into leadership positions as the company has expanded across new regions and markets, and the current hiring wave suggests similar opportunities ahead for new team members.
If you're searching for a company where sustainability isn't just a mission statement but the literal product being delivered to customers' homes, 1KOMMA5° is worth serious consideration. With roles open across sales, operations, trades, and corporate functions, there's an entry point for professionals at many different stages of their careers — all united by the shared goal of helping Europe hit its 1.5°C target, one household at a time.
Interested candidates can explore current openings and apply directly through 1KOMMA5°'s career page or via WorkInGreen.jobs.
