Description
The Biaxial Solar Tracker (BST)® provides approximately 30% more electricity yield than optimally south-facing fixed-mounted PV modules and nearly 50% more than PV modules in an east-west arrangement.
It can usually be installed without a building permit and is a highly economical alternative to a PV system on the roof.
Short delivery time – currently around three months from order placement.
The BST comes in four versions:
- BST 8 – the chic mini BST with four modules;Ideal for the economical two-person household
- ca. 1.9 kW
- Ø 2,700 kWh annual yield
- Space requirement: 4.3 m in the circle diameter
- BST 18 with 9 modulesIdeal for a family’s electricity needs
- 4.2 kW
- Ø 6,000 kWh annual yield
- Space requirement: 6.4 m in the circle diameter
- BST24 with 12 modulesIdeal for larger properties
- 5.6 kW
- Ø 8,000 kWh annual yield
- Space requirement: 7,9 m in circle diameter
- BST32 mast with 16 modules for parking spaces on a steel mast with 3 m or 4.50 m clearance.Ideal for parking lots, agriculture PV
- 7.5 kW
- Ø 10,700 kWh annual yield
- Space requirement: 8.5 m in the circle diameter
System tracking: Two-axis tracking and protective position
The system tracks from east to west and adjusts the tilt angle to the sun. During storms it closes into a flat protective position.
Construction mostly possible without building permit in Germany
The tracking system can usually be placed both on the roof and on the ground without a cumbersome administrative process.
Modular design and quick installation
BST tracker 18 is installed without heavy equipment. On the ground it is often fixed on ground anchors. The installation is completed within one day.
The economically attractive alternative to the roof system
Many roofs are poorly suited for BST installations. For them, the tracker in the garden, on the ground or outbuildings is a practical alternative. And even if there should be a roof suitable for normal BST, the tracker is often more economical.
Product information:
The BST system is electronically tracked throughout the day based on the astronomical position of the sun. Thus, a maximum of solar energy is harvested. The system control closes the tracker as soon as the wind speed measured by the installed anemometer exceeds a limit value – on the ground usually at more than 55 km/h and on the roof above 25 km/h.
Setting up:
In almost all countries, the following applies: solar systems on or at the house or on the garage or carport can be erected without a building permit or building notification. Exceptions sometimes apply on high-rise buildings. Furthermore, a BST 18 can usually be erected on the ground without any building procedure because it is less than 3 m high and less than 9 m wide. Similarly, two BST 8 or one BST18 and one BST 8 can be erected on the ground. However, two BST 18s or one BST18 mast will then require a permit.
The responsibility for the permissibility of the BST tracker under building law in individual cases lies with the customer. Furthermore, a system must be registered with the local grid operator by the electrician erecting it. And the customer must register the system with the market master data register.
Modular:
The BST is delivered in lightweight components, like Ikea furniture. Only the steel poles for BST18 mast in parking lots and their substructure are heavier, so the tracker mast is erected with a mobile crane. The ground anchors can be screwed into the ground with a hand tool and can withstand tensile loads of more than one ton per anchor. The teams of our distributors or our own teams can regularly complete the installation including ground anchor assembly within one day.