Warenkunde

Begriffslexikon

Was versteht man eigentlich unter Brennwert, Antioxidantien oder Omega-3-Fettsäuren?
Diese und ähnliche Begriffe rund um das Thema Ernährung und Lebensmittel erklärt Ihnen das REWE Lexikon.

REWE Green Building – a sustainable end-to-end concept

The REWE Green Building is hailed as the “Store of the year 2010”.

The REWE Green Building – Concept for the Future was selected as the winner in the ‘Food’ category at the “Stores of the year 2010” ceremony in Berlin. This prestigious award, presented by the German Retail Federation (HDE) to the retail industry, acknowledges the innovation and the broad-based sustainability strategy of the REWE Green Building. For REWE, this top-class prize is both an affirmation and an incentive to maintain its commitment to sustainable development and continue living up to its role as a pioneer in the sector.

The REWE Green Building was the first supermarket in the world to receive the German Sustainable Building Council’s gold certificate.

Cooling - lighting - heating: these are the three largest items on a supermarket's energy balance. We realised that intelligent processes and technologies could be utilised to drastically reduce this energy consumption. A combination of these techniques has been used in the Green Building pilot store, which REWE opened in Berlin on 5 November 2009.

This pilot store is CO2 neutral, which means that the heating, ventilation, lighting, air conditioning and cooling systems do not pollute the environment with carbon dioxide emissions. Daylight architecture is another of the store's special features, which is combined with energy-saving construction techniques, optimum insulation, sustainable materials and the use of renewable energies. As a result, the Green Building concept store uses more than 40% less energy than a standard REWE store.

The aim of the project is to develop a new supermarket generation. This makes REWE's commitment to sustainability tangible, comprehensible and - thanks to the German Sustainable Building Council's gold certificate - transparent too.

Wood

The special framework construction is made from wood - a fast-growing, renewable material - which acts as a clearly visible symbol of sustainability. A wood sandwich construction method was used to build the walls, which are filled with cellulose for insulation.
Daylight

The store is lit by natural daylight. Brightness sensors automatically keep the amount of artificial light used to the minimum necessary.
Photovoltaics

Photovoltaic modules on the projecting roof and the main roof generate approx. 32% of the energy needed by the store.
Rainwater

Natural rainwater is used for cleaning the floors, flushing the toilets and watering the building's grounds. This saves valuable drinking water. And because the rainwater contains no lime, considerably fewer cleaning agents are required.
Geothermal energy

We use geothermal energy from ground source heat pumps to maintain an ideal temperature at your new REWE store in summer and winter alike. This generates enough power to cater for another 8% (approximately) of our energy requirements.
Cooling system

Natural coolants alone are used for air conditioning and to chill fresh produce and frozen products. Glass doors on the freezers reduce cool air leakage and save energy.