A-Yachts a27 daysailer – 340Wp SP series

The A-Yachts a27 is a modern daysailer designed by Lorenzo Argento that combines sportive sailing with elegant Italian design and highest build quality from Austria.

The propulsion system is an electric motor powered by a 48V LiFePO4 battery bank. However, since many of these boats are moored on jetties and buoys without an electrical supply, charging this battery is not always easy. The obvious solution: charging with solar energy.

In order to not interfere with the elegant lines, a solar power system was developed in cooperation with the shipyard and seamlessly integrated into the deck. 10 bypass diodes integrated into the laminate and two independent step-up MPPT controllers ensure maximum shade tolerance and provide energy even in difficult lighting conditions.

The individual cells are concealed by a black base laminate and covered conductor tracks, resulting in a homogeneous black module. Alternatively, pigmented intermediate layers can be used to create other finishes, e.g. to match the paintwork on the hull.

For an optimum fit, the modules were checked directly on board using our 1:1 paper templates before final release for production. This allows not only the cable positions and contours but also the visual appearance to be evaluated.

340Wp provide approx. 1.2-2.0kWh per day in summer, which not only ensures a complete charge of the propulsion battery within a few days – when sailing, the 12V system and an inverter are simultaneously supplied via a small buffer battery, so that in addition to the continuous supply of cold drinks and music, even 230V consumers with up to 1200W can be used.

Shipyard: A-Yachts

Technical data:
Power: 340Wp
Panel series: SP
Weight: 5,5kg
Battery voltage: 48V
Battery type: LiFePO4