Wattstone
Flat roof East-West setup complete package 10° made of fine concrete 860Wp with 2 PV modules bifacial
Pickup available at Grenzstraße 182 in Voerde
Usually ready in 2-4 days
Simply set up > Screw on PV module > Connect micro-inverter > Done!
- Substructure and weighting in one
- No drilling of the roof structure necessary
- No complicated assembly with tools!
- Concrete base made of fine-pored exposed concrete
- Integrated M8 threads for mounting modules and cables
10° Complete package 860Wp - black - bifacial (effective on both sides). For surface installation in the garden or on flat roofs - East-West installation
This plug-and-play photovoltaic complete package includes:
- 2 PV modules 430Wp Trina Vertex S+ Bifacial Black
- 1 Microinverter Envertech EVT800 up to 1100Wp with integrated string cable
- up to 1000Wp module power connectable
- Module terminals, construction protection mats, angle wrenches
- 4 high-quality, durable L-concrete bases (WATTSTONE 10°)
The installation on the flat roof does not require any additional weighting! The L-shaped stones, each weighing 24 kg, are delivered with a fastening system and are ideal for individual installation with a slope of 10 degrees.
The concrete bases are made of fine-pored exposed concrete and allow for easy and quick assembly. No drilling into the roof structure or additional weighting is required. The integrated M8 threads are used for securing the modules and cables.
The bifacial PV module achieves an additional yield of up to 25% due to its double-sided photovoltaic cells. It is a glass-glass module that has lower power loss at higher temperatures and offers a longer lifespan.
Wind Tunnel Certificate
PDF Download Wind Tunnel Certificate
Tested according to DIN-EN 1991-1-4: 2021
Friction Coefficient Test
WATTSTONE 10° and 6° securely adheres to smooth bitumen, bitumen with slate, PVC, EPDM, and smooth concrete. This is true under both dry and wet conditions. Download Peutz test report.
Dimensions and Weight
- Dimensions of a WATTSTONE 10° concrete L-stone (LxWxH): 800 x 120 x 227 mm
- 1 WATTSTONE weighs 24 kg
- Dimensions of the TRINA Vertex S+ PV module (LxWxH): 1762 x 1134 x 30 mm
- 1 PV module weighs 21.1 kg
- Dimensions of the EVT800 micro-inverter from Envertech (LxWxH): 264 x 194 x 35.5 mm
- 1 EVT800 micro-inverter weighs 4.1 kg
Material and Color
WATTSTONE: High-strength concrete of grade C55/67, self-compacting and smooth. Anthracite colored throughout or concrete gray.
Alignment and fastening
- Inclination angle of PV module: 10 degrees
- Inclination angle of substrate: max. 5 degrees
- Mounting of PV modules: Horizontal
- Support for concrete base: Use protective mats underneath
- Distance between module rows: 60 cm
- Recommended orientation: East-West
- Fixing of PV modules: Horizontal with end or middle clamps, stainless steel screws with spring washers recommended
WATTSTONE threaded sleeves
M8 threaded sleeves, 2 pieces for mounting PV modules and 1 piece for optional installation of cable ducts or windshields on the back.
Shipping Information
Delivery within 2-4 working days.
The shipping costs are calculated based on the selected quantity, the chosen variant (without or with cable), and the registered delivery address.
For this product, delivery will be carried out by various service providers. Heavy or large items, such as WATTSTONE L concrete blocks and PV modules, will be shipped via freight forwarding. Smaller or lighter items (micro inverters, mounting materials) will be handled by a parcel delivery service. Therefore, the delivery of the individual components may occur on different days.
Set up in just 5 minutes
Traditional PV ground mount systems usually require anchoring, gluing, or ballasting on the roof. Often, concrete slabs are used as ballast. With the robust concrete bases from WATTSTONE as the foundation for the ground structure, these steps are completely eliminated.
Flat roof PV plug-and-play solar power plant in a complete set.
- Bifacial PV module achieves an additional yield of up to 25% through photovoltaic cells on both sides
- Glass-glass module with lower power loss at higher temperatures and longer lifespan
- All components: Made in Europe
- Set up in just 5 minutes
The power plant generates electricity from both the front and the back of the modules, thus producing power from both sides. This maximizes the yield from the same area - especially from the reflection of sunlight from surrounding surfaces.
With love for detail
WATTSTONE places great importance on quality in materials and workmanship. See for yourself.
Stable, practical, efficient, and useful - Flat Roof PV
- No drilling of the sensitive roof membrane required
- Save additional weight with cut concrete slabs or paving stones
- Substructure and ballast in one element without assembly
- Simple and quick installation of the PV modules
- Elegant exposed concrete in anthracite instead of rickety metal construction
- Integrated M8 threads for mounting PV modules and optionally cable ducts or wind deflectors
WATTSTONE 10°
Concrete base made of fine exposed concrete for easy and quick installation of PV modules without drilling into the roof structure.
Concrete base
- High-strength concrete of grade C55/67, self-compacting and smooth
- 24 kg net per concrete base
- Anthracite colored throughout or concrete gray
- 2 x reinforcement steel D=8mm
- M8 threaded sleeves, 2 pcs. for mounting PV modules and 1 pc. for optional mounting of cable ducts or windshields on the back
Easy assembly
- 10 degrees tilt angle PV module
- max. 5 degrees tilt angle substrate
- horizontal installation of the PV modules
- place construction protection mats underneath
- 60 cm distance between the module rows
- Recommended orientation East or West
- Horizontal fastening with end or middle clamps, stainless steel screws
with spring washer recommended
Customer Reviews
This is what customers say about the Flat Roof PV Complete Package