From pv journal Germany
German renewable developer Photo voltaic Kapital not too long ago examined a white membrane to enhance bifacial photo voltaic module yields at its three photo voltaic amenities in Greece.
Photo voltaic Kapital reported that roughly 2,500 m2 of its membranes are utilized in its Lagkadas photo voltaic farm. The modules are put in on single-axis trackers with a hard and fast inclination of 25 levels, positioned at a median top of 1.5 m above the bottom. Measurements taken from June 2022 to Might 2023 reveal a weighted common improve in output of 6.4% over the 12 months, though the values differ because of the depth of the radiation.
The corporate mentioned that the precise yield of the 2 inverters on the time was 1,661 kWh per kW. Contemplating the climate situations, a 4% decrease yield is assumed, leading to a median manufacturing yield of 1,730 kWh per kW, which the corporate considers distinctive for the area. Photo voltaic Kapital says that with a assured feed-in tariff of €0.073 ($0.079/kWh), the membrane’s payback interval can be lower than 2.5 years.
Photo voltaic Kapital can be conducting exams of membranes at its Kilkis photo voltaic plant, which depend on dual-axis tracker know-how. Measurements present an estimated 2.5% improve in yield for each inverters within the facility. Factoring in a feed-in tariff of €0.335/kWh and minimal labor and geotextile necessities, the corporate estimates the membrane’s payback time to be lower than a 12 months.
Nonetheless, payback interval estimates don’t keep in mind the variable prices related to energy technology or the potential advantages of decreased demand for grass clippings. The character of the underground can be vital, as a result of the price of set up will increase in rocky soil.
Over time, the put in geotextile deteriorates, with Photo voltaic Kapital engineers believing that the annual lack of round 20% of its reflection stage is because of the results of climate and mud. Because of this, the extra yield of bifacial photo voltaic modules has decreased.
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