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Buy a solar system and benefit from cheap electricity.

With a solar power system from 1KOMMA5°, you benefit from installation and service from a single source, decades of experience and our smart energy manager Heartbeat.


Six Reasons for You to buy a Solar Power System

1. Free power supply provided by the sun

Once your system is installed, there are no further costs for operating your solar system.

2. Energy independency

Depending on the size of your system and your energy consumption, you can produce part or even all of your own energy, making you more independent from energy providers and giving you more control over your energy costs. Combining with a power storage system can further maximise your energy independence.

3. Climate protection

While using the sun’s energy solar power systems reduce dependency on fossil fuels and eventually decrease greenhouse gas emissions. Installing a solar system offers an easy way to reduce your carbon footprint and make a direct contribution to climate protection.

4. Future-proof

With our solar power system, you have up to 25 years of warranty and the average lifespan of a solar system is even higher. With a fully equipped energy system including a solar power system, power storage, Wallbox, heat pump, and our smart energy manager Heartbeat, you can connect your home with all our customers, transforming it into a virtual power plant. With this technology, you are equipped and secure for the next decades.

5. Feed-in tariffs

The feed-in tariff is a policy mechanism that provides financial incentives to individuals and organisations for generating renewable energy and feeding it back into the grid. 

It is only available in a few specific countries which can be found in Europe, North America and Australia. In Europe, for instance, Germany, France, Spain and the UK offer feed-in tariffs. 

Inform here about the feed-in tariffs in Germany.

6. Increase the value of the property

Energy savings and feed-in tariffs help recoup your investment, and in the long run, also increase your property value. Homebuyers seek energy efficiency and sustainability, and a solar system is a clear indication of this.

You may also benefit from government incentives and tax breaks in certain areas, further reducing the financial impact. In short, a solar system can be a financially rewarding investment that increases your property value.

Step 1

We advise you personally.

Our energy advisors will create an individual offer based on your data. We will explain everything about subsidies, energy management and your individual energy solution.

Step 2

We install your solar power system.

If you are satisfied with the planning of your solar system, we will arrange an installation date after conclusion of the contract, at which time our team will install and commission everything on your premises.

Step 3

We stay by your side.

Even after installation, we remain your long-term partner. Whether you have questions about energy, warranty issues or service, we want to be your contact for the expansion of your energy system with a heat pump or wallbox.


Join the 1KOMMA5° Movement

Take the lead in climate protection - hear from our customers on how they are making a difference.

We decided to go solar for several reasons: for ecological reasons, for political reasons, to be more independent and to please our children.
Zilian Family
I already knew the Göttingen location before it became part of the 1KOMMA5° Group. The team from Göttingen then informed and advised us, so that we decided on a solar system from 1KOMMA5°.
Sybille Fichte
I heard about 1KOMMA5° through a neighbour and in fact another neighbour has now also opted for 1KOMMA5° as a result of the installation at my house.
Dr. Josef Frasunek
We wanted to become more independent. Also from the electricity market. We asked various suppliers and 1KOMMA5° was able to deliver the fastest.
Mecke Family
That was an investment in the future! I want to produce free electricity on my own roof.
Guido Kahlmeyer
I would recommend my friends to think about environmental protection: What can I do personally? For example, buy a photovoltaic system. That way I'm doing something for the environment.
Wolfgang Krien

Why 1KOMMA5° is Your Perfect Match for Carbon-Neutral Technologies

The 1KOMMA5° Group is an up-and-coming company for the installation of carbon-neutral energy systems for private customers, especially for solar power systems, heat pumps, energy storage, wallboxes and smart energy management - and we continue to grow, also in Europe and worldwide. Get your own quote today!

All-In-One Service

Advice, planning, installation, service & electricity contract - we are at your disposal for a smooth process.

No Long Waiting Times

Our efficient processes and dedicated employees keep waiting times short for customers to benefit from solar energy.


Transform your home into a virtual power plant with our energy manager Heartbeat. Connect to a worldwide network and save money. Secure with up to 25 years of warranty.

75 Locations

The 1KOMMA5° Group operates in Germany, Sweden, Finland, Denmark, Netherlands, Spain and Australia, with plans to expand locations nationally and across Europe.

2.000 Climate Experts

Our teams provide expert advice and project implementation for customers to develop the ideal energy system.

100.000 Happy Clients

Our teams' expertise and years of experience have allowed us to install many systems and optimise processes for a secure future.

Energymanager Heartbeat App on an iPad

Connect your Solar Power System with the New Energy Market

Our smart energy manager Heartbeat optimises electricity consumption in homes, saving up to 10%. With intelligent procurement and real-time tracking through the Heartbeat app, save up to 700€ with the Heartbeat Bundle.

Energy Solutions

Our Solutions for Your Carbon-Neutral Life

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Energy Storage

Take control of your energy independency

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Charge your electric car with the power of the sun

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Heat Pump

Carbon-neutral heating for your home


Secure Your Solar Power System Today!

We look forward to your project. With our nationwide network of electricians, you can quickly get to work. Together we will develop your plan for carbon neutrality in your home.


Any Questions?

For whom is a solar system suitable?

A solar system is worthwhile for every homeowner who wants to save on electricity costs. A solar system can also be a good choice for people who are committed to climate protection and want to reduce their carbon footprint, as it produces clean, renewable energy.

How long does it take to install the solar system?

The installation time depends on the size and complexity of the system. On average, a home solar system can be installed in 3 to 5 days.

How much energy can I expect my solar system to generate?

The amount of energy a solar system generates depends on several factors, including the size of the system, the location, and weather conditions. Our team will provide you with an estimate of the expected energy output for your specific system.