Performance Assessment of Example PVT-Systems
SHC Task 60/Report D2
December 2020 - PDF 1.3MB
Editor: Maike Schubert and Daniel Zenhäusern
Publisher: Task 60

The performance of 26 PVT-Systems was analysed and compared in IEA-SHC Task 60. The systems are located in countries with different climatic conditions. The applications range from direct domestic hot water production and heating of public swimming pools to heat pump systems with PVT as the main heat source of the heat pump. The Key Performance Indicators (KPIs) determined for the different PVT solutions give the possibility to compare the systems despite their diversity. The goal was to show the potential of PVT collectors in different fields of application. The results show that the integration of PVT collectors in different kinds of well-dimensioned systems leads to competitive solutions, both from an energy and a financial perspective. Additionally the answers to a survey about control strategies for PVT systems, showing some main problems and possible solutions, are summarised.

Key Performance Indicators for PVT Systems
SHC Task 60/Report D1
November 2020 - PDF 0.96MB
Publisher: Task 60

Report D1: The aim of this report is to provide precise definitions of useful KPI’s for PVT systems. Where possible, these definitions correspond to those used in the technology fields of solar thermal systems and photovoltaic systems. In particular, the KPI's for the thermal performance of PVT systems are to a considerable extent based on the definitions adopted in IEA SHC Task 44 (Hadorn 2015). The stipulation and use of standardized KPI’s and notations will be essential for the comparability of different research results.

2020 Subsidies for PVT collectors in selected countries
Report D6
July 2020 - PDF 1.11MB
Document Number: 10.18777/ieashc-task60-2020-0005

Report D6: PVT collectors can be still considered as young technology, but with significant growing tendency in terms of market development and number of manufacturers on a worldwide point of view. Nevertheless, PVT is definitely in an early stage of its product life cycle, where economic competitiveness among other renewable technologies providing heat and electricity is challenging.

Basic concepts of PVT collector technologies, applications and markets
SHC Task 60/Report D5
May 2020 - PDF 1.02MB
Publisher: Task 60

Report D5: The aim of this report is to provide a summary of the current state of the PVT collector technologies, applications, and markets. The contents of this report have been used to update and enhance a Wikipedia article on PVT in order to better inform on PVT a wide audience. Therefore, the main structure and some literal fragments of the current Wikipedia are reused. Instead of citing the literal fragments of the old Wikipedia article in the main text, we included the old article in appendix and marked the fragments that were reused.

Visualization of energy flows in PVT systems
Report D4
October 2019 - PDF 0.56MB

Report D4: PVT collectors are always part of a system approach. These kinds of systems are highly integrated. So, all components have to interact with each other in a well-concerted way and it is important to describe this in a technical way that incorporates different information needed for the interaction. One possibility to describe the interaction of PVT collectors and other components in a system is the use of a representation of flows developed in an IEA SHC Task (Task 44 – see ref). The representation is called the “energy flow diagram” or simply “square views” (you will understand why) for the visualization of energy flows between the different system components.