By switching to Ostrom, you are driving the energy transition in Germany. Currently, the share of renewable energies in the German electricity market is only about 50%, meaning a mix of fossil and green electricity. The electricity from your socket is therefore referred to as "gray".

However, Ostrom only ever feeds electricity from renewable sources into the grid. In addition, your money automatically goes to the promotion and maintenance of renewable energies and generation plants — instead of continuing to support electricity generation from fossil fuels.