About the solar company Sonnenexpert

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Sustainable photovoltaic systems for solar power

Sonnenexpert GmbH has been successfully operating in the renewable energy market for years. sun expert on the area of Solar technology and there especially on Photovoltaic systemsWith high-quality systems for generating solar power, including for own consumption, we are Solar company Sonnenexpert has grown into a renowned provider of sales and installation services. Photovoltaic systems are suitable for equipping individual House roofs as well as for the realization of large Solar parksWe offer attractive investment objects with returns and also the Leasing of open space for investing in solar energy.

This is where ideas are born: Our unique company headquarters

Since summer 2025, the new headquarters of the Sonnenexpert Group has been shining in Roggentin near Rostock.

It is a state-of-the-art center that unites innovation, creativity, and the power to implement ideas. Here, ideas are born that shape the future – and further construction is underway at the company's headquarters to create space for even more progress and inspiration.

The Sonnenexpert Group We stand for comprehensive energy solutions from a single source. Under our umbrella, specialized companies unite, all pursuing a common goal: actively shaping the path to a sustainable, energy-independent future. Our strength lies in the combination of technical expertise, economic foresight, and practical service – from planning to operation.

Planning, installation and technical implementation – all from one source

Sonnenexpert Technik stands for precise engineering, modern energy technology and future-oriented solutions that are perfectly tailored to the needs of our customers.

Your partner for maintenance, monitoring and plant support

Sonnenexpert Service ensures that photovoltaic and energy systems operate reliably, efficiently and at peak performance in the long term – with a strong focus on quality and customer satisfaction.

Investing sustainably in solar energy – for people and the environment

Sonnenexpert Invest develops and finances renewable energy projects. Our goal: to invest in an ecologically responsible manner while simultaneously achieving economic success.

fri Energy - Your energy. Your future.

The fri Energy It's all about a clean and efficient energy supply for your home. As part of the Sonnenexpert Group, we offer solar enthusiasts innovative solutions for photovoltaic systems, energy storage, and wallboxes – for greater independence, lower energy costs, and an active contribution to the energy transition.

Our mission is clear: We want to support people in generating, storing, and using their own energy effectively. We combine state-of-the-art solar technology with personalized advice and tailored solutions that perfectly match your needs.

fri Energy – because sustainable energy starts at your home.

Together we are shaping the energy of tomorrow – regionally rooted, innovative and with a full passion for sustainability.

Full Service

Everything related to solar power systems – from planning to final installation. Including maintenance and operation.

top offers

A wide range of solar energy products – from single-family homes to large-scale projects. We are the solar company with a broad selection.

State-of-the-art solar technology

Our solar company offers solar technology at fair prices – from renowned manufacturers and exclusive partners.

Large energy storage facilities

We have the energy of tomorrow – with large energy storage facilities, we can create cost-effective energy reserves for everyone.

Everything from a single source at our solar company

Since our founding in 2012, we have been committed to harnessing the power of the sun as a certified solar company. Our team of engineers, roofers, and electricians installs solar systems on roofs and open spaces throughout Germany and beyond, from planning to installation, all from a single source. See for yourself what we offer.

Complete service from planning to finished assembly
Large variety of products
Networked complete solutions
Off-grid solar storage solutions
Investment properties with returns

We are a #Team - More than just collaboration

For us, a team is not just a group of people working together – it's a space full of trust, energy, and mutual strength. In a Team We take responsibility for one another, celebrate successes together, and support each other when we stumble. Every single person is important, every contribution counts, and together we achieve things that would be impossible alone. A team is a feeling of cohesion, inspiration, and collaboration – like sunbeams that shine warmly individually, but together are unstoppable.

The Sonnenexpert team

Our team of experienced solar experts is committed to our goal with high professionalism and reliability: satisfied customers and clean energy, so that solar energy is worthwhile for you!

What will move us forward together

At Sonnenexpert, we are more than a team – we are a community built on trust, respect, and enthusiasm. Our daily actions are guided by values that unite us and illuminate our path.

We are friendly.

For us, friendliness is not an obligation, but an attitude. It creates warmth, opens hearts, and brings us closer together as people and colleagues.

We act on time.

Time is a form of appreciation. Those who are punctual show respect for others and responsibility for the common good.

We keep our promises.

Reliability is the foundation of our success. When we make a promise, we stand by it – our word is our bond.

We are showing courage.

Growth happens outside the comfort zone. We explore new paths, experiment, and learn from every experience.

We give a smile.

An honest smile costs nothing – and achieves so much. It brightens encounters and makes workdays easier.

We give recognition.

Praise and appreciation are part of our culture. We see the good, acknowledge it, and genuinely rejoice in the successes of others.

We offer help.

Together we are strong. Wherever someone needs support, we are there – helpful, attentive and with an open ear.

We admit our mistakes.

Mistakes are part of learning. Admitting them demonstrates strength and responsibility – and enables mutual growth.

We remain honest.

Honesty builds trust. We communicate openly, respectfully, and authentically – with heart and mind.

We are acting wisely.

We think before we act. With mindfulness, experience, and foresight, we make decisions that last.

Become a sun expert now!

Come to the sunny side of life and become part of our team of experts. We want to make sustainable energy usable for everyone and thus protect resources. Drive this further development forward with us!

We are sports enthusiasts

The Sonnenexpert Group stands not only for energy, sustainability and innovation, but also for team spirit and passion – values that we know and live from sports.

We are convinced that success comes from cohesion, fairness and commitment – whether on the playing field or in everyday work.

That's why we are enthusiastically involved in regional sports and support traditional clubs like the FC Hansa Rostock in the 3rd league football, the SSC Palmberg Schwerin in the 1st Women's Volleyball Bundesliga and the Rostock Seawolves in the easyCredit Basketball Bundesliga Men.

This Commitments For us, this is more than just sponsorship – it's a commitment to our homeland and to an active, positive lifestyle.

Movement also plays a major role within our team. At our company events, such as the Rostock Corporate Run, our employees regularly compete together to master sporting challenges, have fun and strengthen team spirit.

Whether in the office, on the construction site, or on the running track – we always give our best. Because only together can we achieve great things.