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Shopping Centre Sterrenburg

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Green roof in combination with solar panels on a unique substructure

Customer

Wereldhave

Utility Peak Power
128 kWp
Location
The Netherlands: Dordrecht

Wereldhave

Wereldhave is a Dutch listed company. Founded in 1930, the company owns and manages a number of Full Service Centers at various locations in the Netherlands, Belgium, and France. These centers are a one-stop location catering to a variety of people’s daily needs, such as shopping, healthcare, sports, entertainment and leisure. Wereldhave has partnered with Solnet, a solar energy solutions provider, to enhance the centers’ sustainability, energy efficiency, and value.

COLLABORATION

A partner with expertise

Kim de Munnik, Operations Director at Wereldhave, explains that the company’s collaboration with Solnet Group began in 2022, when Wereldhave sought a partner with expertise in solar panels and the means to implement them.

"They have done several things for us since then, but they mainly help us with the design of the panel project, the tendering, the financial business case, and also the actual implementation of the solar panels."

GREEN ROOF

128 kWp solar power system on a living roof

Solnet Group has installed a solar energy installation on the roof of the Sterrenburg shopping center, which houses 36 shops. The specific thing about this project is that the solar panels have been placed on a recently constructed green roof, consisting of a layer of substrate in which sedum has been sown. Immediately after the construction of the green roof, Solnet Group started the solar energy installation with a peak capacity of 128 kWp.

A solar utility on a green roof requires specific adjustments. To provide the green layer, the sedum, with sufficient light, the solar panels are placed on a raised substructure. The minimum height between the panels and the sedum is therefore 40 cm. In addition, the system is oriented to the south, in order to create more light for the plants. 

 

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"I would definitely recommend a collaboration with Solnet Group. Installing solar panels sometimes seems simple, but there is quite a bit of complexity to this subject when we talk about maintenance, construction, design, subsidies, permits, etc. They are a partner with expertise in all these areas"

wereldhave
Kim de MunnikOperations Director
A TRUSTED LONG-TERM PARTNER

Competence every step of the way

According to de Munnik, Solnet Group has installed around 400 solar panels at Sterrenburg. She says that the collaboration is set to continue.

"We are now working towards the implementation of two solar panel projects this year. The fact that we are working on two new projects after the first one in Dordrecht shows that we are very satisfied with the collaboration and how they act as a partner for us."

De Munnik points to Solnet Group’s extensive expertise in solar power technology as a key benefit to Wereldhave. On the other hand, equally important are Solnet’s quick adaptability to changing circumstances and the ability to actually implement their solutions in practice. They are able to successfully navigate any challenges in bringing the technology to Wereldhave’s properties.

 

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UNIQUE SUBSTRUCTURE

Delivery of solar power to tenants

The big advantage of the substructure that we use is that it is easy to install after a roof has been provided with a green layer. Many other systems on the market require that the substructure for the solar panels be installed first, after which the green layer can be laid. In principle, we can provide every green roof with a solar utility, including regular ballast blocks. This makes installation simpler, faster, and more economical. The system has also been tested in a wind tunnel and has been certified.

A unique project with a good yield and one of the first installations in the Netherlands that was built in this way. Solnet is currently developing several retail locations for this customer.

In addition, we advise Wereldhave on how best to monetize the investment in the solar utility by supplying the produced solar energy to their tenants.

 

 

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