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Pile-free solar where others cannot build.

Three patented systems for renewable energy on water and land: PowerModule™, PeatModule™ and FlexibleMooringSystem™.

Read more about Sunsurf Solar
  • ISO 9001
  • ISO 14001
Floating solar park in a leachate pond surrounded by forest, seen from the air

Sunsurf Energypowered bySunstreet

PeatModule™

On top of the ground, completely pile-free.

Ballast instead of piling

PeatModule™ is a ballasted solar system, developed for peatland, landfills and industrial land – sites where you want to avoid costly groundwork and extensive ground preparation. The structure is designed to Eurocode.

The system is stabilised with ballast, so neither piling nor anchoring is needed. Where the ground risks flooding, the ballast is combined with anchoring to the sides, or outside the peat or wetland area, keeping the system stable even in the most challenging conditions.

PeatModule™ also suits areas where the ground beneath must be maintained, and where sunlight needs to reach beneath and between the panels.

On peatland and wetlands, where the ground is hard to walk on, the system has an integrated walkway with factory-applied anti-slip ribbing. It gives safe access to panels, cabling and connections during installation, inspection and maintenance – without special equipment.

Peatland with pools of water and pine trees, seen from directly above

Features

  • Pile-free

    Stabilised with ballast, so neither piling nor anchoring is needed.

  • No groundwork

    No excavation or extensive ground preparation.

  • Light to the ground

    Sunlight reaches beneath and between the panels, and the ground below can be maintained.

  • Robust structure

    Frame in corrosion-resistant aluminium on UV-stabilised HDPE pontoons.

  • Modular design

    Units with 3–6 solar panels connect in trains and rows and adapt to the required output and irregular areas.

  • Technical durability

    A technical lifetime of 40 years for the frame.

  • Integrated walkway

    A walkway with factory-applied anti-slip ribbing gives safe access to panels, cabling and connections.

  • Relocatable

    Can be disassembled and moved if site conditions or land use change.

Up to 2 MW per hectare

Depending on row spacing, PeatModule™ delivers a power density of 1.7–2 MW per hectare – a space-efficient alternative to ground-mounted solar parks where piling is not possible.

Each unit is a self-contained subunit with an aluminium frame, HDPE pontoons and integrated cable management. The units come as PowerModule™ and PowerModuleDuo™ and hold 3–6 solar panels, which are connected into strings. Inverters are mounted on dedicated platforms or placed directly on the ground.

Units can be joined both in trains and in rows, with row spacing set by site conditions. The modular design lets the system scale to the required output and adapt to irregular areas.

Application areas

Ground where the system makes the biggest difference

  • Peatland with moss, heather and pools of water, seen from above
    Low load-bearing

    Peatland

    The low load-bearing capacity of peat makes piling difficult. PeatModule™ rests on top of the ground on HDPE pontoons, is stabilised with ballast and handles changes in ground level.

  • Open bog with pools of water and spruce forest in the background
    Wet ground

    Bogland

    Soft ground with temporary standing water. The system follows the ground’s movements, and the anti-slip walkway makes servicing possible even where the ground is hard to walk on.

  • Capped landfill with gravel roads and a small pond, surrounded by forest
    No groundwork

    Landfill

    No piling and no extensive ground preparation. The ballast keeps the system in place, and the installation can be disassembled and moved if land use changes.

  • Gravel and asphalt yard with warehouses at the edge of a forest
    No anchoring

    Industrial land

    Where groundwork is costly or undesirable, the ballast means neither piling nor anchoring is needed. Units connect in trains and rows and adapt to irregular areas.

Suppliers

Our suppliers are based in the Nordic region, which means short supply chains, high quality and a low climate impact.

Aluminium

Both PowerModule™ and PeatModule™ are made of aluminium for a long life, low weight and high corrosion resistance – stable and durable even in demanding environments such as leachate ponds, landfills and peatland.

The aluminium comes from Nordic raw materials and is processed in Sweden. Manufacturing is done in close cooperation with suppliers certified to ISO 9001 and ISO 14001.

HDPE

The pontoons in both systems are made of high-density polyethylene (HDPE) by suppliers certified to ISO 9001 and ISO 14001. HDPE is corrosion-resistant, suits both fresh and salt water and is highly resistant to UV radiation, mechanical impact and chemicals.

The pontoons are made from recycled HDPE in Finland – a circular choice of material for sustainable production.

How we develop the technology

I spent nine years working on offshore technology, including HVDC platforms, offshore wind and wave power in the Nordic climate. We apply the same design standards to our floating and pile-free solar modules, with quality all the way through, from calculation to physical delivery.

The power market is challenging for everyone who wants to build renewables, so a solar park has to last for decades with low operating costs. That is why our systems have few moving parts, durable materials and a strong structure, and all maintenance is done easily from the walkway.

No two sites are alike. Whether it is a leachate pond, a reservoir or peatland, we start from the conditions on site and adapt the design when the installation has unique needs.

We can do that thanks to close collaboration with our Nordic suppliers. It gives us high quality and short supply chains, and lets us keep developing the technology together.

Martin Örgård, founder and CTO of Sunsurf

Martin Örgård

Founder and CTO

Nine years as a naval architect and senior simulation engineer in offshore.

Straight answers

Click a question to read the answer

  • Peatland, wetlands, landfills and industrial land – sites where piling is not possible or where you want to avoid costly groundwork.

  • The difference is the surface: PowerModule™ floats on water such as leachate ponds and reservoirs, while PeatModule™ rests on top of the ground. Both systems are developed for the Nordic climate.

  • The frame is corrosion-resistant aluminium and the pontoons are UV-stabilised HDPE, made from recycled HDPE in Finland. Manufacturing is done with suppliers certified to ISO 9001 and ISO 14001.

  • The system is built for low maintenance. All components are accessible from the integrated walkway or from the ground, so servicing can be done without special equipment.

  • Normally not – the system is stabilised with ballast. Where the ground risks flooding, or where otherwise needed, the ballast is complemented by anchoring to the sides or outside the peat or wetland area.

  • The units come as PowerModule™ and PowerModuleDuo™ and hold 3–6 solar panels. They connect in trains and rows and can be adapted to irregular areas.

  • Landfill owners, landowners with peatland and rewetting projects, such as Kättilstorp.

    Want to know more?

    Contact us to discuss which solution suits your business.

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