The system uses a solar panel to generate DC power and also capture waste heat. This captured heat pre-heats a fluid in a container attached to the panel's bottom. An electrical heater then turns this pre-heated fluid into vapor, which spins a turbine to generate AC power. The fluid container is specifically designed with internal channels, coils, or fins to capture heat efficiently.
Why it matters: Since 2017, photovoltaic panel efficiencies have increased, potentially yielding more waste heat and more available DC power for the electrical heating element. Advances in small-scale Rankine cycle components may also improve viability for this hybrid approach.
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