The present study proposes a methodology to increase the energetic efficiency of WWTP and to promote the grid-connected PV system in WWTP in order to enhance the en-vironmental and economic performances.. The present study proposes a methodology to increase the energetic efficiency of WWTP and to promote the grid-connected PV system in WWTP in order to enhance the en-vironmental and economic performances.. The placement of photovoltaic modules is designed to maximize the use of free space on the technological area of wastewater treatment plant in order to obtain a power output as high as possible. The peak consump-tion of wastewater treatment plant occurs in April, however the peak production of the. . A case study of the synergy between wastewater treatment plants and photovoltaic systems, aiming to improve the energetic, environmental and economic impacts, is presented. The peak consumption of wastewater treatment plant occurs in April, however the peak production of the. . The first system combines parabolic trough collectors (PTCs) with thermal energy storage (TES). This system primarily serves to fulfill the thermal energy demands of the plant by reducing the demands from boiler units, which allows more biogas for electricity generation. The second system is a.
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