New PVT system currently tested

Two innovative PVT systems are currently tested. The particularity of the PVT is the integration in a shingle.
They are expected to have less issues for roof integration/installation, being also equipped with fast piping connections.  The two PVT systems differ for the heat recovery design and materials. Aims of the testing is the definition of the optimal design and the comparison in terms of performances with commercial PVT panels already installed.