Agrosolar – Agri-PV Search and wanted tips: Largest agri-photovoltaics in Lower Saxony

The introduction of agri-photovoltaics (agri-PV) systems in Lower Saxony, Germany, has revolutionized agriculture in the region. The combination of solar energy generation and crop cultivation on agricultural land has brought about a groundbreaking change in the way farmers utilize resources.

Robert Lettenbichler, a pioneer in this field, has implemented the agri-PV system on his family's land and successfully runs a herb and vegetable drying business. The impressive €1.3 million agri-PV system generates over 700,000 kWh of electricity annually, covering 50% of his company's energy needs. Although the initial investment costs are high, Lettenbichler is confident that the investment will pay for itself within 10 to 15 years.

Choosing the right cultivation method: Chives as a sustainable option

Chives were chosen for cultivation due to their perennial nature. However, despite this promising outlook, logistical challenges remain. The energy generated is used in the factory for drying vegetables and herbs. This innovative approach offers fresh potential compared to conventional solar panels on barn roofs. The agrivoltaic plant in Lüchow has received a ten-year research permit to study its effects on plants, insects, and animals. A symbolic grant of €400,000 from the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety underscores the importance of this project.

The advantages of the agri-PV system for farmers

The agri-PV system offers numerous advantages for both farmers and the environment. Some plants thrive under the solar panels, while others struggle with reduced sunlight. However, the agri-PV system proves particularly beneficial during dry periods due to its ability to retain more moisture. This makes it increasingly attractive to farmers, as it allows them to protect their crops while simultaneously generating clean energy.

Agri-PV contributes to sustainable energy production in Germany's future

The agri-PV system also makes a significant contribution to achieving the ambitious goals of Germany's energy transition. By 2030, Germany aims to generate 80% of its total electricity consumption from renewable sources, including solar energy. The agri-PV system is a remarkable step in this direction and impressively demonstrates how innovative technologies can combine traditional agriculture with sustainable energy production.

Agri-PV – A success story for farmers and the environment

The agri-photovoltaic system has the potential to sustainably transform agriculture in Germany. It not only enables farmers to generate clean energy but also protects their crops from the effects of solar power generation. Although the initial investment costs are considerable, this technology pays off in the long run, both financially and ecologically. The increasing appreciation of renewable energies by large companies is further driving the demand for such innovative solutions.

The agri-PV system is a pioneering step on the path to Germany's energy transition, bringing the country closer to its goal of covering the majority of its electricity consumption with renewable sources. It impressively demonstrates how progress and tradition can go hand in hand to create a more sustainable future.

If you would like to learn more about the Agri-PV system or are considering using this innovative technology on your own land, please do not hesitate to contact us. We would be happy to advise you and share our expertise!

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Agri-PV, short for agri-photovoltaics, describes the simultaneous use of agricultural land for food production and electricity generation to increase land efficiency. The investigation of its feasibility and economic viability is proceeding at full speed both nationally and internationally. In Germany, the Fraunhofer Institute for Solar Energy Systems (ISE) is a key player in this field and is collaborating on an orchard project in Baden-Württemberg, a model region for Agri-PV. This initiative comprises five pilot plants, supported with €2.5 million in funding. It is researching optimal system designs for different crops, the impact of PV systems on yields, and their ability to provide protection against adverse weather conditions.

Potential analysis for agri-PV

A study conducted by the Lower Saxony Ministry for the Environment, Energy, Building and Climate Protection between October 2018 and July 2020 examined the potential of agri-PV in the region. Apples, asparagus, and blueberries were identified as promising candidates for agri-PV among the cultivated plants in Lower Saxony. With approximately 17,500 hectares of these crops, an estimated 0.7 to 1.5 gigawatts of installed electrical capacity could be achieved, depending on the type of installation.

Challenges and opportunities

While major crops like wheat, corn, sugar beets, and rapeseed are currently less suitable for PV systems due to reduced solar irradiance, the use of PV modules could compensate for yield losses caused by persistent drought by providing protection against evaporation. Nevertheless, extensive research is needed for practical implementation in all applications. Despite this, the potential for electricity generation is considerable, with a nationwide estimate of 1,700 gigawatts, which is driving support for corresponding projects.

A success story from Germany – despite the bureaucratic hurdles

One of Germany's largest agri-PV systems is located in Lower Saxony, where a farmer in Wendland cultivates chives on approximately one hectare and uses the electricity generated by the PV systems to dry herbs and harvest crops on the same land. Overcoming bureaucratic hurdles proved challenging, particularly regarding the use of EU agricultural subsidies for agri-PV, land-use planning, and environmental regulations.

Future prospects and innovations

Innovations are intended to drive the development of agri-PV in Germany. Representatives from agriculture, solar technology, research, and certification organizations are working on preliminary standards (DIN SPEC 91434) that define key aspects of agri-PV, such as scope, terminology, criteria, and technology requirements. The German Federal Network Agency subsequently established agri-PV criteria as the basis for the 2022 innovation tenders under the Renewable Energy Sources Act (EEG), with a capacity of 150 megawatts. The new German Federal Government plans to further promote agri-PV within the framework of its 200-gigawatt solar initiative and increase the originally planned tender capacity from 50 MW to 150 MW.

The integration of agri-PV systems into agriculture has diverse impacts on the sector. These systems not only provide a sustainable energy source but also contribute to the optimization of agricultural processes. Here are some key aspects that illustrate the impact on agriculture:

Microclimate zones for plants and animals

Agri-PV systems cast shade on parts of the land, creating microclimates. These zones can be crucial for the growth of certain plant species. Some crops thrive better under slightly diffused sunlight, and Agri-PV systems offer the possibility of creating these conditions intentionally. Furthermore, animals such as cows or chickens can find refuge from excessive heat in the shaded areas, which promotes their health and productivity.

Optimized plant growth

By protecting plants from excessive sunlight and heat stress, agri-PV systems can optimize plant growth. The risk of drought damage is reduced because plants in the shaded areas transpire less water. This leads to healthier plants with higher crop yields. Some farmers are already reporting improved quality and increased yields through the use of such systems.

Sustainable harvests and animal health

Creating microclimates and providing protection from extreme heat contribute to more sustainable agriculture. Reduced stress factors make plants more resistant to diseases and pests. At the same time, improved animal health leads to higher production rates and better meat or milk quality in livestock. This is a significant step towards more resource-efficient and environmentally friendly agricultural practices.

Agri-PV: A path to the future

The installation of agri-PV systems on farms, such as the Lettenbichler family farm, marks a pioneering step towards sustainable and future-oriented agriculture. This development has far-reaching implications:

Environmental protection and energy production

Agri-PV systems enable the simultaneous use of land for energy production and agricultural purposes. This reduces the need for additional land for solar installations and minimizes potential competition between energy production and food cultivation. The transition to renewable energies such as solar power is an important step in the fight against climate change.

Economic benefits for farmers

Investing in agrivoltaic systems can be economically advantageous for farmers. In addition to revenue from energy production, government incentives and subsidy programs can increase profitability. Furthermore, farmers can feed surplus energy into the grid, generating an additional source of income that contributes to diversifying their revenue streams.

Technology and environmental protection in harmony

The installation of agri-PV systems on agricultural land demonstrates that technology and environmental protection can go hand in hand. Farmers become energy producers while simultaneously contributing to mitigating the environmental impact of conventional agricultural practices. This example shows how innovation and sustainability can be combined to enable efficient and environmentally friendly food production.

Significant progress for agriculture

Agri-PV systems represent a significant advancement for agriculture, offering both ecological and economic benefits and paving the way for a more sustainable and efficient future. The implementation of this technology opens up new perspectives for the coexistence of food production and renewable energy generation.