Presently, only a limited number of hybrid collectors and systems are available. Hybrid solar PV/T has the potential to become a major player in the renewable energy sector, but one of the most important barriers is the inexistence of a proven track record in terms of reliability and performance. In order to address this issue, an in-depth study was realized to monitor in-field energy performances of two solar domestic hot water installations near Lyon (France). The two sites was equipped with an innovative unglazed PV-T collector, the DualSun technology. With 9m2of DualSun collectors, hot water needs for 4 people were 91% covered from May to September, with an average annual coverage of 50%. These results are really similar to classical solar thermal performances. Temperatures in the used panels never exceeded 68°C, demonstrating that there is no risk of overheating nor PV encapsulation degradations. The obtained performances were as high as expected from the Solar Keymark normative coefficients.
Brottier, L., Naudin, S., Veeser, V., Terrom, G., & Bennacer, R. (2016). Field Test Results of an Innovative PV/T Collector for Solar Domestic Hot Water. In Energy Procedia (Vol. 91, pp. 276–283). Elsevier Ltd. https://doi.org/10.1016/j.egypro.2016.06.219