TechTalk – Solar PV-X Technologies: New Frontiers Beyond Electricity
May 15, 2026 (Thursday) 11:30am-12:00nn
Photovoltaic (PV) panels are typically less than 20% efficient in delivering electricity from the Sun’s
energy. The efficiency losses are especially pronounced when PV panels are exposed to high
irradiance conditions on warm, sunny days, which lead to higher temperature operation. Of the
total amount of sunlight incident on PV panels, over 70% is lost to the environment as waste heat.
This loss has motivated the development of ‘hybrid’ PV-thermal (PV-T) collectors, which combine
PV cells with a contacting fluid. The fluid recovers waste heat from the cells, thus delivering a
potentially useful thermal output, while simultaneously cooling the cells and increasing their
electrical efficiency. Recently, a new concept that we refer to as multifunctional ‘PV-X’ collector
technology has emerged, in which secondary processes are integrated synergistically with the PV
cells, exploiting the available waste heat to perform additional functions directly within the collector.
In this talk, we will present conventional and advanced PV-T and PV-X collector concepts and
designs, along with their underlying operational principles. We will explore opportunities for further
developing these technologies and examine how new materials can drive improvements from the
component to the system level, while discussing the potential of integrating these technologies into
broader solar-energy systems capable of providing cooling, heating, power, fuels or clean water.










