VitiVoltaic projects aim to make viticulture fit for climate change. The term is an artificial word from the Latin generic name for the grape vine and the word for solar power generation, photovoltaics. This new technology makes it possible to harvest two very different things on two levels: electricity at the top and grapes at the bottom.<\/p>\n
The modules are mounted high up to create space for the vines and agricultural machinery below. The structure provides support and protection to the delicate vines from hail, heavy rain, and strong sun. When the sun shines, the semi-transparent solar panels create a checkerboard pattern on the ground. A tracking system automatically aligns the modules so that they capture every beam of light.<\/p>\n
Riesling, Germany’s most popular wine variety, could use some help due to climate change. The vines are now sprouting earlier and are very susceptible to late frosts. In addition, the grapes are more exposed to the sun and therefore have more sugar and less acidity, which changes the alcohol content and taste.<\/p>\n
Through the project, extensive experience has been gained in the field of microclimate. The test facility uses numerous sensors to measure soil moisture, temperature, and light. There was no damage under the panels due to sun damage or heavy rain, while the adjacent reference area was severely affected. Heating wires and drip irrigation hoses snake along the rows of vines. The former proved effective during a three-day frost at the end of April 2024.<\/p>\n
The electricity generated is used to control the system and to charge agricultural vehicles, cars, and e-bikes, as well as to operate pumps and an autonomous caterpillar, a robot that mulches, cultivates the soil, cultivates the undergrowth, and applies pesticides. A winery requires energy all year round for production, storage, and logistics.<\/p>\n
Many vineyards have already been abandoned because no one wants to farm them anymore. The slopes covered with vines are part of the cultural landscape, a tourist attraction, and important for species protection. With VitiVoltaic, farmers have the opportunity to reduce manual labor, harvest healthier grapes, and become profitable.<\/p>\n
The lack of a network connection often dampens enthusiasm for VitiVoltaic. The length of the power lines to be laid and the options for using the electricity generated or selling it directly to local consumers are crucial for economic viability. But the approval process can be lengthy because energy production changes land use. Without permission, only PV systems that are located a short distance from the farm may be built.<\/p>\n
VitiVoltaic offers a promising solution for the wine industry, which faces numerous challenges such as poor harvests, changing consumer habits, and oversupply. The technology has the potential to reduce manual labor, harvest healthier grapes, and provide a second source of income for wineries. However, the lack of a network connection and slow bureaucracy can hinder the adoption of VitiVoltaic.<\/p>\n","protected":false},"excerpt":{"rendered":"
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