From pv magazine Germany
Swiss solar module manufacturer Megasol has conceived a new in-roof system that it claims can be used to deploy homogeneous and flush-fitting rooftop PV installations.
Called Nicer X, the in-roof system is available in two versions — the full-black and the translucent variants. The first system relies on 400 solar modules with a power conversion efficiency of 21.7%, black cell gaps, cross-contacts, and rear busbars. The second solution utilizes larger, transparent cell spacing enabling light to penetrate by around 10%.
Both solutions consist of three components: vertical supports, a ridge profile, and solar modules. The installation is easy, according to the manufacturer. In the first step, the vertical supports are screwed directly onto the existing roof battens after the old tiles have been removed. In the case of a new building, reduced roof battens can be installed.
In the second step, the ridge profiles are clicked and modules can be installed. “The modules are laid completely without tools — they are pushed up to the upper stop and then “closed, similar to a trunk lid,” explains Michael Reist, head of communications at Megasol. “An audible click and a corresponding haptic feedback confirm that it is securely locked in place.” In addition, it is also possible to visually check whether the solar modules are securely fixed. With the manufacturer's snap-lock fasteners, the modules can easily be attached and detached several times.
According to Megasol, 20 square meters of the Nicer X substructure and solar modules could be deployed in one person-hour. The manufacturer also offers matching eaves grilles for the system if required. The system is also claimed to be completely rainproof from a roof pitch of three degrees, which is achieved by a double labyrinth seal.
The system is not only suitable for in-roof photovoltaic systems, but also for solar parking lots, canopies or facades. Existing parking spaces could be retrofitted and, in the case of facades, the system is particularly suitable for hall-like buildings or steel structures. In the case of non-insulated hall constructions, no further facade elements are necessary and the trapezoidal sheets can be left out completely.
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