1K5° Commercial DivisionSmart solar solutions that deliver real savings for your business

Q: Innovative Technology for Maximum Efficiency

1KOMMA5° uses cutting-edge technology for maximum efficiency and reliability in commercial solar solutions, providing consistent, clean power and cost savings .

Q: Financial Benefits and Long-Term Savings

Our solar systems reduce energy bills , protect against rising costs, and offer attractive returns on investment, with assistance in navigating incentives and financing options.

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What we do

Empowering Australian businesses to operate on sunlight and wind forever, for free

At 1KOMMA5°, we help Australian businesses take control of their energy costs with smart commercial solar and battery solutions. Our goal is simple: give organisations access to clean, reliable, and affordable electricity.

Our name comes from the Paris Climate Agreement target of limiting global warming to 1.5 degrees. Founded in Germany, 1KOMMA5° represents our commitment to delivering energy solutions that help protect the planet, one project at a time.

What we've achieved

1K5° Numbers at a Glance

Worldwide

2,200+ Employees

Installations

290,000+ Energy Systems

CO₂ Savings

14M Tonnes

Consumer Savings

$20M Annually

World-Class Energy Solutions, Delivered Locally

A Global Mission, Local Expertise

1KOMMA5° is a global decarbonisation company headquartered in Hamburg, Germany, committed to accelerating the transition to carbon-neutral energy worldwide.

In Australia, the combined strengths of Arkana Energy Group, Solaray Energy and Kozco Energy Group form 1KOMMA5° Australia, bringing world-class engineering, commercial expertise and New Energy innovation to local businesses.

Backed by strong financial resources and a scalable operational model, we deliver commercial installations that are safe, on time, on budget, and aligned with every client’s operational requirements.

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Proven Performance Across Energy-Intensive Sectors

Award-Winning Commercial Experience

We specialise in helping Australian businesses transition to reliable, clean and cost-effective energy systems that support long-term growth.

With a proven track record across different energy-intensive sectors, we design, install and maintain scalable commercial solar and battery solutions that deliver measurable financial returns and meaningful CO₂ reductions.

Recognised by SunWiz as a Top 10 Commercial Solar Installer in 2025, we support organisations ranging from small enterprises to major corporations, delivering systems from 50 kW up to 8 MW.

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Advanced Technology Powering Smarter Energy

Tech-Driven Innovation

Our TechLab in Berlin is the global research and development hub for 1KOMMA5° and the home of Heartbeat AI.

Here, more than 200 developers innovate at the intersection of hardware, software and energy intelligence, building advanced artificial-intelligence tools and electricity market software designed to optimise energy systems across the global market.

This technology advantage ensures our Australian commercial clients benefit from smarter forecasting, improved system performance and future-ready energy management.

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1KOMMA5°

Commercial Team

Luke Stronach

Chief Executive Officer, Australia

Daniel Jucima

Director of Operations, Commercial & Industrial

David James

Head of Commercial Sales

Mitch Ziekemijjer

Head of Commercial Installations

Real Businesses, Real Results

Delivering Measurable Impact

Check our commercial projects

Solar & Battery Commercial Rebates

Helping Businesses Save More

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Why Invest In Solar & Batteries:

Maximise Savings with Rebates

Take advantage of government incentives to reduce upfront costs, lower energy bills, and boost your bottom line.

Flexible Financing Options

Use the savings from your energy bills to pay for your system. Start saving from day one.

Increase Property Value

Solar and battery systems and other energy efficiency upgrades are long-term investments that enhance the value of your commercial property.

Enhance Your Brand

Demonstrate your commitment to sustainability, reduce your carbon footprint, and strengthen your business’s reputation

Accreditations

Certified for Commercial

Why Choose 1KOMMA5°

The shift to clean energy starts with the right partner. At 1KOMMA5°, we empower businesses to take control of their energy future and make a lasting impact through smarter, more sustainable solutions.

Innovative Technology for Maximum Efficiency

1KOMMA5° uses cutting-edge technology for maximum efficiency and reliability in commercial solar solutions, providing consistent, clean power and cost savings.

Tailored Solutions for Every Business

We offer customised solar solutions to fit your specific needs and budget, ensuring optimised energy use and supporting your sustainability goals.

Commitment to Sustainability and Positive Impact

Our solar solutions reduce your carbon footprint and promote your business with our mission for positive environmental impact.

Seamless Integration and Support

We handle every aspect of your solar project, from consultation to maintenance, ensuring your system operates at peak performance while you focus on your business.

Proven Track Record of Excellence

With a proven track record and successful projects, 1KOMMA5° is a trusted leader in delivering high-quality, reliable commercial solar solutions.

Financial Benefits and Long-Term Savings

Our solar systems reduce energy bills, protect against rising costs, and offer attractive returns on investment, with assistance in navigating incentives and financing options.

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