The AgroPV TR System is a pilot solution developed under a project co-financed by the National Centre for Research and Development (NCBR). Its parameters may continue to be optimized as part of ongoing field research; depending on the results, further optimization and updates to the design assumptions will follow.

The project titled “Innovative technology for combined crop cultivation and electricity production using photovoltaic solutions” is funded from the state budget by the National Centre for Research and Development under the strategic program “New Technologies in the Field of Energy II.

Agrivoltaics (agriPV) one solution, many benefits

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Agrivoltaics (AgriPV) one solution, many benefits

Agrivoltaics (also written agri-PV or agrivoltaics) is the practice of installing photovoltaic modules several metres above crops so that the same plot of land can simultaneously (1) generate electricity, (2) harvest and store rain-water, (3) create a favourable micro-climate that protects the soil from drought, and (4) maintain or even increase conventional crop yields. The farmer, therefore gains not only an additional revenue stream from solar power but a full package of environmental and economic advantages that together make the holding more resilient to climate change.

1. What exactly is agrivoltaics and why so many names?

TermTypical use
AgrivoltaicsStandard English form (USA, UK, Asia)
AgriPVPreferred in EU policy papers and SolarPower Europe reports
AgroPVCommon in German-speaking markets and Central Europe
APV (Agro-Photovoltaics)Abbreviation in academic literature

Why so many names?
The variations stem from language differences and research traditions in various countries. The European Commission’s RED III documents use “AgriPV,” the Fraunhofer Institute prefers “AgroPV,” and academic papers often shorten it to “APV.” In practice, every label describes the same concept: arranging PV modules so that the farmland beneath can keep doing its job.

Regardless of the wording, the underlying idea is identical—one piece of land, multiple functions:

  • generation of electricity,

  • collection and storage of rain-water,

  • micro-climate improvement and soil protection,

  • stabilisation or even increase of standard crop yields.

2. Why is the topic growing so quickly?

Over the past five years agrivoltaics has moved from a scientific curiosity to one of the cornerstones of the EU Fit-for-55 strategy.
First, land pressure is rising. Poland’s National Energy and Climate Plan alone calls for at least 16 GW of new PV capacity by 2030, and the area needed for conventional solar farms is beginning to compete with food production.
Second, field trials deliver hard evidence. Studies in Germany, Japan and the United States show that partial shade reduces water and heat stress in plants, changing yields from –5 % to +20 % depending on species, while cooler module temperatures improve conversion efficiency.
Third, the financial outlook is attractive. Allied Market Research estimates that the global agriPV market exceeded 6 billion USD in 2024 and is expanding at 5–6 % per year.
Finally, policy momentum is clear. The RED III Directive and the reformed CAP reward installations that combine energy and food, offering CAPEX bonuses and faster grid-connection procedures.
All these forces converge on the modern farm, which now has to act simultaneously as a food producer, a water manager and an energy generator.

 

3. Main Agri-PV System Architectures

LayoutKey featuresBest-fit scenarios
Single-axis trackerMoving tables, N-S rotation, ~3 m hub heightLow crops, high solar resource
PV greenhouseSemi-transparent roof panelsHigh-value horticulture
Fixed table 10–15 °Conventional ground-mount PVSites where shade must stay minimal
Linear V-roof (TR System)Two 5–10 ° slopes, single centre column, central gutterShade-tolerant crops + rain-water retention

In upcoming articles we will show why linearity, the V-shape and on-frame water tanks provide a competitive edge under Central-European farm conditions.


4. The four pillars of sustainable production

1) Stable crop yield
Modules installed several metres above vegetables cut midday PAR by roughly 20 %, lowering leaf temperature by up to 5 °C and reducing transpiration. Wageningen University trials (2024) reported yield gains of 8 % for onions and 11 % for cabbage in a drought year. In practice the TR System keeps harvest volumes stable across wet and dry seasons, lowering economic risk for the grower.

2) Rain-water capture and storage
The dual-slope V-roof acts as both umbrella and funnel, directing run-off by gravity into a central gutter and then into slim above-ground tanks (1–3 m³ each). With an average 650 mm yr-¹ of rainfall, one hectare of TR System can collect up to 4 200 m³ of water. The EMS delivers it precisely through drip lines or micro-sprinklers, cutting bore-hole or mains abstraction by as much as 30 %—crucial in regions facing desertification.

3) Shade and soil protection
Designed “dappled shade” lowers moisture loss from the 0–10 cm soil layer by 20–35 % and slows humus mineralisation. Cooler mulch encourages mycorrhizal fungi and improves aggregate stability. In an ICARDA experiment (Tunisia, 2023) soil under agro-PV retained 18 % more organic carbon after two seasons than control plots in full sun.

4) Energy production and emission cuts
Every 1 kWp of HJT/TOPCon modules generates up to 1 450 kWh yr-¹ in the Baltic climate. This electricity powers pumps, cold stores or EV chargers, offsetting about 1.2 t CO₂-eq over the life-cycle per kWp (IEA average). The farm moves towards energy self-sufficiency and meets EU Green Taxonomy criteria.

Precision farming & EMS
The TR System’s controller logs solar irradiance, soil moisture, tank levels and PV output. Its algorithm modulates valves, pumps and battery charging to balance energy and water flows. All metrics export as CSRD/ESG-ready datasets, simplifying non-financial reporting and unlocking access to green finance.

5. Engineering & economic challenges — and mitigations (single technical paragraph, no marketing tone)

The critical cost driver is the elevated steel structure (≈ +30 % versus fixed-tilt PV), followed by potential over-shading. The TR System offsets CAPEX with standardised HEA/HEB profiles bolted on-site; no welding reduces labour. Shade is managed through light-transmissive glass-glass modules (35–65 %) and variable row spacing. In Central-European conditions levelised cost of electricity ranges from 0.068 to 0.083 €/kWh once water-revenue and environmental payments are included.


6. Europe in numbers

RegionGHI*RainfallEnergy yieldRainwater harvest
North Poland (Pomerania)1 050 kWh m-² yr-¹650 mm1 150 kWh kWp-¹4 200 m³ ha-¹
Central Germany (Brandenburg)1 105590 mm1 2003 800
Southern Italy (Puglia)1 600480 mm1 5003 100
South-West France (Occitanie)1 450730 mm1 3504 600

*Global horizontal irradiation. Values rounded to the nearest 10.

 

7. What sets the TR System apart?

  • Modular linear layout—rows can be added sequentially without altering existing infrastructure.

  • East–West dual-slope geometry (V-roof)—balances morning and afternoon output and channels rainfall into a central gutter.

  • Single support column—fewer footings, wider clearance for farm machinery.

  • Non-permanent ground footings—no concrete; can be removed without disturbing the soil.

  • Integrated retention system—slim 1–3 m³ tanks aligned with each column, ready to feed drip irrigation.

  • Transparent or bifacial PV modules (HJT / TOPCon)—selected to match crop-light needs and on-farm load profiles.

  • Open-platform EMS—combines energy metering, water analytics and CSRD / ESG reporting.

  • 50-year steel design life (hot-dip galvanised, ISO 1461/12944, Eurocode-compliant) and 25–30-year PV module warranty.


8. Key take-aways

Agrivoltaics is no longer experimental; it is a scalable tool that merges the three critical farm resources—soil, water and energy—into one climate-resilient ecosystem. The TR System’s linear V layout minimises CAPEX, maximises light and water capture, and streamlines ESG reporting. Any holding can evolve into a modern AgriPV farm that meets EU Taxonomy criteria and qualifies for green financing.

Ready to dive deeper? Continue to the next article in the series or reach out to Energia Pomorze for a project-specific feasibility study.

FAQ

PL & IT: full permit; fast-track if the footing is removable. DE & FR: classed as an “agricultural structure”, exempt when eaves ≤ 3 m; otherwise standard Bauantrag / Permis de Construire.

No, provided ≥ 70 % of the ground remains vegetated and modules are ≥ 2 m above soil (rule applied in PL, DE, IT, FR).

3 100 – 4 600 m³ ha⁻¹ yr⁻¹ in Central & Southern EU climates; equal to 30 – 45 % of peak-summer irrigation for leafy greens.

Both are allowed. Common pattern: on-farm self-consumption + surplus export. PL & IT permit “direct wire”; DE & FR prefer energy-community schemes.

Replacing grid electricity avoids roughly 0.6 – 0.9 tonnes CO₂-eq per kWp of PV capacity each year. On top of that, storing rain-water cuts diesel use for irrigation, saving an extra 0.06 – 0.12 tonnes CO₂-eq per hectare per year.

CAP eco-schemes (all MS), RRF grants (IT, FR), KfW RE Loan (DE), Polish NCBR GreenEvo pilot; Horizon Europe calls from 2025.

An agri-PV array costs about 25 – 45 % more than a ground-mount PV plant.
• ~15 – 35 % comes from the taller steel structure,
• ~5 – 8 % from the rain-water gutters and storage tanks,
• ~3 – 5 % from the drip-irrigation upgrade and EMS controls.

That premium buys a complete, integrated system: solar power plus smart water management and crop-protection shading. Higher yields, lower irrigation bills and national CAPEX bonuses (e.g. up to 40 % grant in Italy) offset much of the added upfront cost.

Field trials and commercial pilots show that shade-tolerant or heat-sensitive crops benefit most:
Leafy greens — spinach, lettuce, kale, chard
Root and bulb vegetables — leek, celery, onion, carrot, beet
Fruiting vegetables — cucumber, zucchini, tomato (trials), pepper
Soft fruit & berries — strawberry, raspberry, blueberry, blackberry
Vine crops — table grapes and wine grapes; canopy lowers sunburn risk
Orchards — young apple, pear, peach and cherry trees; protection against hail and heat spikes
Herbs & nursery seedlings — basil, coriander, tree saplings that need moderated PAR

Yield response ranges from maintaining baseline output to +5 – 20 %, depending on cultivar and local climate.

By choosing light-transmissive modules (35 – 65 % Tₗ) and adjusting row spacing from 3 m (dense shade) to 30 m (light shade).

Yes. The TR System is designed around standard farm machinery envelopes:
Ground clearance: up to 4 m to the lowest beam, sufficient for tractors, sprayers and small harvesters.
Row spacing: adjustable from 5 m to 30 m, allowing anything from compact vineyard tractors to wide-boom equipment to pass without obstruction.

Glass–glass HJT/TOPCon modules carry 25 – 30 yr product + performance warranty; manual or automated washing 2 – 4× yr keeps yield within spec.

The TR System connects directly to standard agricultural infrastructure: mainline drip or sprinkler networks use ¾-in. or 1-in. BSP quick couplers on the frame, while the EMS communicates via Modbus-TCP or MQTT, letting it exchange data and control signals with common farm-management platforms (e.g. John Deere Operations Center, Agrirouter) and third-party SCADA or battery-storage controllers. No proprietary protocols or special adapters are required.