The black and white facades of the Aarau warehouses in Schafisheim are seen by tens of thousands of drivers on the A1 every day.A new project is invisible from below: The company has installed around 3,000 solar modules on the roofs and uses them to produce electricity for high-bay storage and cooling.The two large halls of the Aarau warehouses catch the eye: the striking facades of the buildings in Schafisheim are clearly visible from the A1 and from the train, the black and white design is unmistakable.What cannot be seen from below, however, is what has recently been installed on the roofs of the warehouses: one of the largest solar systems in Aargau.In future, the Aarau warehouses will produce around a third of the power consumption at the Schafisheim site themselves. 3,000 solar modules with a peak output of one megawatt have been installed on the roofs of the two halls.Company spokesman Eloy Van der Sman says that as a logistics service provider, the Aarau warehouses share the responsibility for protecting the environment with ecological measures in the long term.With Ampere Dynamic, the Aarau warehouses have brought in a specialist for solar systems from companies.With around 5500 square meters, the area occupied by panels corresponds to the size of a small football field.This makes the system one of the largest in Aargau to cover a company's own electricity consumption.Lagerhäuser Aarau AG is a family business with almost 150 years of tradition.Founded in 1873, the company today employs around 340 people and offers a total of over 120,000 pallet spaces at its locations in Schafisheim, Spreitbach and Hunzenschwil.Solar power will also soon be produced in Spreitbach, and plans for a system there are underway.The solar system is already in operation at the sister company Weinkellereien Aarau.The parent company of Lagerhäuser Aarau is the Lagerhäuser der Centralschweiz AG, which also owns the Cotra Autotransport AG based in Lupfig.According to Eloy Van der Sman, a photovoltaic system will also be installed there, which will bring even more solar power across the group."If you add up the services that we achieve in a final stage of expansion, the group becomes one of the largest photovoltaic producers in Switzerland."According to the spokesman, with the commissioning of the solar system on the roofs, the Aarau warehouses will be more independent from the electricity market.Van der Sman speaks of a low-maintenance and, above all, profitable source of energy, and the majority of the energy produced is used directly in the company's own operations."We save around 200 tons of CO2 per year, which is equivalent to planting almost 17,000 beech trees," he compares.A few weeks ago, a new, large photovoltaic system also went into operation in Fricktal.2475 modules with a peak output of 854 kilowatts were installed on the roof of the Rodi Fructus AG warehouse in Möhlin.Around a third of the expected annual energy production of around 750 megawatt hours will be used directly by Rodi Fructus AG on site.The locally produced solar energy is mainly used for the permanent energy supply of the cooling units.The system was implemented by AEW Energie AG using the so-called contracting process, as stated in a press release.The energy supply company is the builder and owner of the photovoltaic system and takes care of the planning, construction, operation and maintenance.According to AEW, Rodi Fructus AG benefits from favorable conditions and is protected against fluctuations in electricity prices.Excess energy is fed back into the AEW network.The history of Rodi Fructus AG goes back more than 100 years and began with the trading of fruits and vegetables from all over the world for the Swiss market.The wholesaler has been based in Möhlin AG for almost 20 years and supplies Swiss supermarkets with fresh fruit from there.Distribution and storage of the fruit require a lot of energy, especially for cooling.With the solar system on the roof of the company hall, the cold chain becomes more ecological, reports AEW.