When you sign up with Ostrom, we don't want you to have to worry whether or not your energy is ACTUALLY green. That's why we only buy 100% green energy from a renewable pool of solar, wind, and hydro sources—absolutely no fossil fuels involved.

On top of that, we've signed signed direct contracts (PPAs) with generators in Germany. This means you'll be able to point to exactly where your power comes from on a map!

We also have our TüV Nord certification!