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Strategic Growth Partnership Yields Unprecedented Success in Six Countries

The German company sonnen designs and manufactures energy storage systems for households as well as other additional energy solutions. Starting the relationship in 2022, sonnen has expanded into six countries through Genero’s services: Belgium, the UK, the Netherlands, Sweden, Denmark, and Poland. As part of our role, we have built and managed sonnen’s entire digital marketing presence in all markets. In 2023, we achieved a record number of leads.

Introducing our valued customer sonnen

A subsidiary of Shell, sonnen is a German company founded in 2010. The company has over 1,300 employees. Their products enable customers to store their solar energy in their sonnenBatteries and use it when needed. sonnen’s vision is clean and affordable energy for all.

How we Increased Market Share And Sales

The aim of this partnership is to increase market share and sales.

Now we are building sonnen’s digital marketing presence across six markets. Before our collaboration, sonnen was limited to SEM marketing in 3 markets.

We currently run paid advertising across multiple channels, the key channels being Meta and Google. The website’s search engine optimization, website design, forms, and marketing automation are current priorities. We create content for sonnen and use AI to test content. In addition to writing, we produce images and videos for sonnen enabling their success on paid channels.

Additionally, strategic cooperation requires smooth and regular communication, which we manage with  bi-weekly appointments and other ad-hoc calls to discuss priority topics.

The Results: How We Achieved Significant Traffic and Lead Growth

In 2023, across all six country markets, we created over 100 ads and generated over 6,500 leads. The best results in 2023 were achieved in Sweden, Belgium, and the Netherlands.

Sweden 🇸🇪
Sweden has proven to be a highly lucrative market for us, with substantial growth in both website traffic and lead generation. The best channel for generating leads has been Meta. In September 2023 alone, we generated nearly 550 leads through Meta campaigns.

+116% Growth in leads compared to 2022
+306% Growth in traffic compared to 2022.

Belgium 🇧🇪
The first Meta campaign was conducted in Belgium in the Flanders region in February-March 2023. At the same time, we updated and optimised the existing Google Ads account. The campaign was successful, however due to the lack of previous data on tracking platforms, the cost per lead remained relatively high. However, we are currently generating the cheapest leads in Belgium across all markets.

+41% Growth in leads compared to 2022
+70% Growth in traffic compared to 2022

The Netherlands
🇳🇱
Although we have used Meta as the only paid channel in the Netherlands with a relatively small budget, the ad performance has been outstanding from the very beginning. Both the number of leads and traffic have increased by several thousand percent. However, the lead quality  is slightly lower when compared to other markets.

+1122% Growth in leads compared to 2022
+6407% Growth in traffic compared to 2022


“Working with Genero has not only been a pleasure but vital to our success over the last two years. Most notable is their ability to understand our product and business model. This understanding was used to pitch and implement ideas, helping us achieve our set targets.”

Philip Gorsler, Marketing Manager Europe sonnen GMBH