Reference - partner from the Netherlands

Raspberries

• South or east-west roofing provides protection from too much rain and hail
• When using pot systems, easier crop rotation
• Moderate ridge opening as a “chimney” to prevent mold formation on the berries
• Module transparency ≤ 40% possible, corresponding to ≤ 50% natural light, module transparency can be individually adjusted
• Higher Night temperature under the modules in spring
• Evapotranspiration up to 30% lower
• Larger leaf area
• Harvest quantity 1.8 kg/m² (Sept. 2021, identical to foil)
• Sugar content Ø 1 ºBrix lower vs. foil

blueberries

• Transparency of ≤ 40% is possible
• PV modules protect blueberries from sun damage
• Firmness of the fruit is higher than in the open field (better transport and storage capacity)
• Increase in leaf area
• Harvest weight of the blueberries similar or slightly lower (vs. foils)
• Hardly any qualitative difference
• Slightly delayed harvest period

Strawberries:

• Strawberries place high demands on growth conditions (photoperiod and temperature; sufficiently long exposure to light is necessary)
• Cultivation under PV modules protects against heavy rain and hail
• Excessive solar radiation can also be avoided with an APV system (vs. shading nets over polytunnels)
• Use of modules with ≥ 50% Transparency: Achievement of the active radiation (PAR) of 350 - 450 μμmol/m²*sec, which is important for the quality of strawberries
• Images adjacent: Strawberry plants in the substrate on racks under polytunnels, combined with semi-transparent PV modules
• Modules can be laid horizontally or vertically

Mains connection:

Photovoltaic self-consumption is worthwhile if the electricity costs saved are greater than the feed-in tariff. (EEG 2023)

The surplus electricity is ideally fed into the grid via the local energy supplier.

As a rule, the customer takes care of the network connection himself in collaboration with the local network operator.

But direct marketing can also be worthwhile in view of the rapidly increasing price of electricity on the exchange. (as of April 2022)