Effects of fishery complementary photovoltaic power plant on radiation, energy flux and driving forces under different synoptic conditions.

The underlying surface was the important media of air-lake interaction by transferring energy. The deployment of photovoltaic arrays on the lake has formed a new underlying surface type. But the new underlying surface is different from the natural lake. The impact of fishery complementary photovoltaic (FPV) power plants on the radiation, energy flux, and driving force is unclear. Therefore, the analysis of radiation, energy flux, and driving force by comparing the difference in the two sites under various synoptic conditions. The results indicated that the radiation components are not significantly different in the two sites under diverse synoptic conditions. The downward shortwave radiation (DSR) and net radiation ([Formula: see text]) were presented with one peak on a sunny day. The daily average DSR and Rn in the two sites were 279.1 W·m-2, 209.3 W·m-2, respectively. The daily average (cloudy day and rainy day) sensible heat flux in the two sites was 39.5 W·m-2 (FPV site), 19.2 W·m-2 (REF site), respectively. The latent heat flux was 53.2 W·m-2 and 75.2 W·m-2 on counterpart. The water body generally absorbs heat from the air (daily average ∆Q was 16.6 W·m-2) in the FPV site on a sunny day. The driving force of sensible heat flux in the FPV site was governed by the temperature of the FPV panel under sunny and cloudy conditions. The latent heat flux was determined by the product between wind speed and water-atmosphere temperature difference.

Physical analysis of the environmental impacts of fishery complementary photovoltaic power plant.

Photovoltaic (PV) power plants have shown rapid development in the renewable sector, but the research areas have mainly included land installations, and the study of fishery complementary photovoltaic (FPV) power plants has been comparatively less. Moreover, the mechanism of local microclimate changes caused by FPV panels has not been reported. This work revealed this mechanism using a physical model to illustrate the impact of FPV power plants in a lake on the environment. The results indicated that the lake becomes a heat sink after deploying the PV panel on water. The comprehensive albedo (0.082) decreased by 18.8% relative to the free water surface (0.101). The water energy change was dominated by the water-air vapor pressure deficit. In addition, the FPV panels had a heating effect on the ambient environment; however, the range of this effect was related to the water depth. The installation had an obvious heating effect on surface water.