Rethinking sustainability: wooden solar carports

THE SUN-MASTER KNOWLEDGE BLOG

A carport is now much more than just a shelter for your vehicle. When combined with solar panels, it becomes a source of energy – and, with the right choice of materials, even an active contributor to climate protection.
SUN-MASTER solar carports, made from spruce timber, bring these two worlds together: sustainable construction and clean energy generation.

Wood as a carbon sink – an often misunderstood benefit

When people talk about CO₂ sequestration in wood, a misconception can easily arise: many assume that wood stores CO₂ anew every year. That is not actually the case.
CO₂ absorption occurs exclusively whilst the tree is growing. Through photosynthesis, it extracts carbon dioxide from the atmosphere and stores the carbon in the wood.
If the wood is subsequently processed into a carport, this CO₂ remains bound within the material.

In practical terms, this means:

  • A SUN-MASTER carport stores around 1.5 tonnes of CO₂.
  • This amount is a one-off payment.
  • It remains intact throughout its entire lifespan.
  • This is not an annual saving, but a permanent CO₂ sink.

This is precisely where the key difference lies compared to many misleading representations.

The real climate benefit: storing energy whilst reducing emissions!

In addition to CO₂ storage, there is a second, even greater benefit:
A comparable carport made of steel or aluminium generates over 40 tonnes of CO₂ during manufacture.
By choosing a wooden carport instead, you avoid these very emissions.

The result:

  • 1.5 tonnes of CO₂ stored
  • over 40 tonnes of CO₂ avoided

A climate benefit of over 41 tonnes of CO₂ – right from the start!

And that’s before your solar panel system has even started generating electricity.

Clean energy – year after year

Whilst CO₂ storage is a one-off measure, photovoltaics deliver long-term benefits:

  • You generate your own electricity
  • reduce your energy costs
  • reduce their CO₂ emissions year on year

Depending on the size of the solar carport, this translates to several tonnes of CO₂ saved each year.

It’s the combination that makes the difference:
A component that stores CO₂ – and generates energy at the same time.

Quality that stands the test of time

Sustainability isn’t just about the materials – it’s also evident in the design.

SUN-MASTER carports are thoughtfully designed down to the last detail and built to last:

  • Integrated roof drainage for efficient water runoff
  • Galvanised trapezoidal steel sheet with an anti-drip coating for added protection
  • Sturdy substructure for maximum stability and safety

Whether as a fully assembled solution or a practical kit, our solar carports offer maximum flexibility.
When combined with SUN-MASTER energy storage modules and tried-and-tested inverters, they form a comprehensive system: for greater efficiency, greater independence and a sustainable energy future right on your doorstep.

Frequently Asked Questions.

An overview.

Where Can the Energy Storage System be Placed and how is it Installed?

Our energy storage system is usually installed in a basement, cellar vault, or a
suitable storage room. For maximum safety – especially when multiple
modules are stacked on top of each other – our technicians perform a professional wall mounting.

The modules are delivered by freight forwarder or by our own team. Thanks to integrated rollers, they can be easily moved to the installation site, after which the rollers are removed. Alternatively, the modules can also be safely lifted using the integrated eyelet system. For stacking the energy storage modules, the eyelets can also be removed.

Our energy storage modules utilize particularly safe 48V technology. The installed LiFePO₄ cells are considered extremely reliable and, unlike conventional lithium-ion batteries, cannot self-ignite. This means for you: maximum safety with full performance.

In the front area of the storage system, where the electronics such as the BMS and wiring are located, our engineers have deliberately planned additional space. This ensures good ventilation and protects the components from overheating. At the same time, we remain flexible: In case of future adjustments – for example, due to new legal requirements or new state-of-the-art components – additional components can be easily integrated.

Fundamentally, our energy storage systems are very durable and low-maintenance. However, if a malfunction does occur, the failure is usually attributable to the electronics—specifically the BMS (Battery Management System) or the communication interfaces (RS485 / CAN bus). These components are subjected to greater stress than the actual LiFePO₄ cells, which are extremely robust and long-lasting.
The typical spare part costs per module are approximately:

BMS: €200–250
Communication Board: €250–300
LiFePO₄ Cell Unit: €150–200

Briefly explained:
BMS (Battery Management System): Monitors and protects the cells, ensures uniform charging and discharging.
RS485 / CAN-BUS: Enables communication between the storage system and the inverter and master module.

All components in the energy storage system are securely mounted and thus protected from vibrations. The stable aluminum frame provides additional stability, while the outer casing made of HPL panels offers particularly robust protection.

HPL (High Pressure Laminate) is a high-pressure laminate characterized by its extreme robustness: It is shock- and scratch-resistant, withstands moisture and UV radiation, and is flame-retardant (fire protection class B1). Thus, the internal components are reliably protected against external environmental influences such as heat, moisture, or mechanical stress – and the storage system remains operational long-term.

LiFePO₄ cells are considered particularly safe and are extremely rarely self-igniting. Should a fire nevertheless occur internally, it would not spread outwards: LiFePO₄ cells only ignite at around 200-250 °C, while the robust HPL panels of the outer casing are only flammable from approximately 400-500 °C. This means that even in extreme cases, fire spread is ruled out.
Even after installation, we are reliably there for you. Should components ever fail, you can reach us by phone from Monday to Friday between 8:00 AM and 5:00 PM at +49 39724-268000 or anytime by email at info@sun-master.de. Our nationwide installation service ensures that defective electronic components or individual cells are replaced directly on-site within three working days – quickly, professionally, and reliably.
Our energy storage systems usually consist of several modules. If a single module fails, the overall storage system remains functional – only the performance is reduced.
A storage system with 5 modules, each with 16 kWh capacity and 8 kW power, results in a total of 80 kWh capacity and 40 kW power. If one module fails, 64 kWh capacity and 32 kW power are still available. The storage system therefore continues to operate reliably, albeit with slightly reduced performance.
  • Production Facilities & Machine Halls (24/7 Operation): Even if a module fails, the energy supply remains stable, allowing machines to continue running. Production downtimes are thus reliably avoided.
  • Hospitals & Emergency Power Systems: In safety-critical areas, a continuous supply is crucial. Even if a module fails, the power supply remains guaranteed – an important factor for life support systems and sensitive medical equipment.

Thanks to the modular design, maximum operational reliability is thus ensured.

A possible failure is displayed directly in the SUN-MASTER App. There, you can not only monitor the status of your storage system, but also control yields and consumption, optimize self-consumption, and intelligently manage your energy flows.

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