Nestlé Launches Agri-PV “Cow Solar” Project in Allgäu, Blending Clean Energy with Sustainable Farming

Last Updated: May 2026 • Case Study: Nestlé Agri-PV System, Biessenhofen, Germany

Can cows graze under solar panels while a factory runs on green electricity? In the Allgäu region of Bavaria, Germany, Nestlé has proven that the answer is yes. Together with renewable energy partner BayWa r.e. and local farmer Gerhard Metz, Nestlé has opened a fully operational agri-photovoltaic (Agri-PV) system in Biessenhofen one of the most compelling real-world examples of how solar energy and agricultural land use can coexist productively on the same ground.

This article explores how the Nestlé Biessenhofen Cow-PV system works, what Agri-PV technology means for the future of food production and renewable energy, and how installers, EPCs, and developers can apply the same principles to agricultural solar projects in the United States and globally.

The Nestlé Biessenhofen Agri-PV Project

In the Allgäu region of Bavaria one of Germany's most productive dairy farming areas Nestlé has commissioned a solar installation that challenges the traditional assumption that solar panels and farmland are mutually exclusive. The Biessenhofen Cow-PV system was developed in partnership with BayWa r.e., one of Europe's leading renewable energy project developers, and operated in close collaboration with local farmer Gerhard Metz, whose cattle continue to graze the land beneath the elevated solar array.

The system spans an area equivalent to approximately seven football fields and generates enough electricity to cover around 25% of the energy needs of Nestlé's adjacent production facility. As Jörg Schmitt of Nestlé noted at the project opening: "Our Cow-PV system shows how energy generation and agricultural use can work hand in hand. For us, this is more than just an energy project it shows how solutions can tackle multiple challenges at once, together with strong partners and local agriculture."

What Is Agri-Photovoltaics (Agri-PV)?

Agri-photovoltaics (Agri-PV), also called agrivoltaics, is the simultaneous use of land for both solar photovoltaic energy production and agricultural purposes. Instead of covering productive farmland entirely with ground-mounted panels as a conventional solar farm does, Agri-PV systems elevate the panels on taller structures typically 4–6 meters above ground allowing crops, vegetables, fruit trees, or livestock to continue operating in the same space beneath.

The concept was first demonstrated in 1981 by German researchers Adolf Goetzberger and Armin Zastrow, who identified that the partial shading provided by solar panels could actually benefit certain crops by reducing water stress in hot climates. Modern Agri-PV systems have evolved significantly from that original concept, with purpose-engineered elevated mounting structures, bifacial panels optimized for dual-surface irradiance capture, and sophisticated monitoring systems that track both energy production and agricultural outcomes simultaneously.

How the Cow-PV System Works

The Biessenhofen system is specifically designed for livestock Agri-PV a subtype optimized for grazing animals rather than row crops. Solar panels are mounted on elevated structures at sufficient height to allow cattle to move freely beneath without obstruction. The panel layout is designed to maximize solar energy capture while maintaining sufficient ground-level light penetration to sustain healthy grass growth for grazing.

The elegance of this design is that neither the solar generation nor the farming operation requires the other to stop. Grazing continues uninterrupted and the cattle actively benefit from the shade canopy created by the panels, particularly during the hot summer months that are increasingly severe across Bavaria and Central Europe due to climate change.

Benefits: Energy, Agriculture, and Animal Welfare

The Nestlé Biessenhofen project delivers value across three distinct dimensions simultaneously which is precisely what makes it a model worth replicating. Most energy projects optimize for one outcome. Agri-PV optimizes for three.

Agri-PV vs. Standard Ground-Mount Solar

Understanding how Agri-PV compares to conventional solar deployments helps installers and developers identify the right application for each client and site:

The Full Energy Efficiency Chain at Biessenhofen

What makes the Nestlé Biessenhofen project particularly instructive is that the solar array is not a standalone measure it is integrated into a broader factory energy efficiency strategy that compounds the CO₂ reduction well beyond what the panels alone would deliver.

This layered approach generate clean energy, use it efficiently in heat pumps, and recover what would otherwise be wasted represents the gold standard for industrial decarbonization. The Biessenhofen site becomes not just more sustainable, but genuinely more energy-independent, buffering the factory against grid price volatility and supply disruptions.

Agri-PV Global Market and Growth

The Nestlé project is not an isolated experiment it is part of a rapidly scaling global movement. Agri-PV installed capacity has grown from less than 5 MW globally in 2012 to over 14 GW by the end of 2024, with the vast majority concentrated in Asia (particularly Japan, South Korea, and China) and a fast-growing European segment led by Germany, France, and the Netherlands. The global Agri-PV market is projected to reach over 100 GW of cumulative installed capacity by 2035, driven by land scarcity, food security concerns, and the need to scale renewable energy without permanently removing productive farmland from agricultural use.

The US Agricultural Solar Opportunity

For US solar installers, EPCs, and developers, the Nestlé Biessenhofen project represents a preview of a rapidly emerging domestic market. The United States has approximately 900 million acres of farmland and the tension between solar development and agricultural preservation is a growing political and planning challenge in many states. Agri-PV offers a resolution to this tension that benefits both the energy transition and rural farming communities.

Agri-PV Project Development Workflow

For EPCs and developers approaching their first Agri-PV project, this workflow mirrors the approach used in the Nestlé Biessenhofen development:

Frequently Asked Questions

What is Agri-PV and how is it different from a regular solar farm?

Agri-PV (agrivoltaics) uses elevated solar panel structures that allow agricultural activity crops, vegetables, or livestock grazing to continue beneath the panels on the same land simultaneously. A regular solar farm dedicates the land entirely to energy production, removing it from agricultural use. Agri-PV preserves agricultural productivity while adding solar energy generation, making it a dual-use land solution rather than a land conversion.

How much of Nestlé's energy does the Biessenhofen Agri-PV system cover?

The Biessenhofen Cow-PV system generates enough electricity to cover approximately 25% of the Nestlé factory's energy needs. Combined with heat pump operation and waste heat reuse, the total decarbonization impact of the project is significantly larger than the direct solar generation figure alone suggests.

Do cows actually benefit from being under solar panels?

Yes. Research from agricultural universities in Germany, France, and the US consistently shows that elevated solar panels provide shade that meaningfully reduces heat stress in dairy cattle during summer months. Heat stress reduces milk yield and reproductive performance in dairy herds so effective shading has direct productivity value for farmers. The "Cow-PV" model turns a solar installation into a welfare improvement for the herd rather than an intrusion on their habitat.

Is Agri-PV eligible for solar incentives in the United States?

Yes. Agri-PV systems qualify for the federal Investment Tax Credit (ITC) under the Inflation Reduction Act at the same rate as standard commercial solar (30% base, potentially higher with domestic content and energy community bonuses). The USDA Rural Energy for America Program (REAP) also provides grants of up to 25% of eligible project costs for agricultural producers. Some states offer additional incentives specifically for dual-use agricultural solar systems.

What type of solar panels are best for Agri-PV systems?

Bifacial panels are the preferred choice for most Agri-PV applications. Their ability to capture reflected light from the rear surface is particularly valuable in systems where panel spacing is wider than standard to allow light penetration for crops or grass. Bifacial panels on elevated structures with reflective or grass ground cover can yield 5–15% more energy than monofacial panels of the same rated wattage. High-efficiency N-type TOPCon or HJT panels are ideal for maximizing energy yield in the wider-spaced configurations that Agri-PV requires.

How can food manufacturers replicate the Nestlé Biessenhofen model?

Food manufacturers with agricultural supply chain partnerships or owned/leased farmland adjacent to production facilities are ideal Agri-PV candidates. The key steps are: (1) identifying suitable land with good solar resource and active agricultural use, (2) engaging a renewable energy development partner with Agri-PV experience (such as BayWa r.e. in Europe or US equivalents), (3) securing agricultural land-use approvals, and (4) integrating the system with factory energy management including heat pumps where applicable to maximize the efficiency multiplier effect.