Electricity: Digital & Fair at Cost Price. All in English. Cancel any time.

Save up to 35% or up to 500 € on your energy bill annually with Ostrom! We're a smart green energy provider offering a flexible monthly subscription that you can cancel anytime. Our app is available in English or German, ensuring a seamless experience for all users.

As an Ostrom family member, you'll have full access to the Ostrom app, your ultimate tool for managing your energy consumption, payments, and the CO₂ emissions you've saved, all in one place.

YOUR POWER USAGE

Our app helps you understand your electricity usage in relation to your monthly payments. Keep your data up-to-date by regularly entering your meter readings.

SMART METER & DYNAMIC TARIFF

If you have a smart meter, Ostrom allows you to track your energy consumption hourly and receive bills based on the current hourly rate.

BILLING MANAGEMENT

Experienced a spike in your power usage this month? Adjust your monthly deposit directly in the app to avoid any unexpected year-end charges. Easily review all your invoices, payments, and customize your payment method in one convenient location.

FRIENDLY SUPPORT

Our dedicated team is ready to assist you via chat. Connect with us through the app for outstanding customer service with rapid response times.

CONNECT SMART DEVICES

Link your Heating, Ventilation, or Air Conditioning (HVAC) to the Ostrom app to effortlessly schedule and adjust your temperature and mode settings.

CHARGE YOUR EV EFFICIENTLY

Charge your electric vehicle during the most cost-effective and eco-friendly hours with complete transparency. Set the time you need your EV ready, and it will charge when prices are at their best.

REFERRAL PROGRAM

Get your exclusive referral code, share it with your friends, and earn referral bonuses. For each successful referral, you receive a 50 € credit on your invoice or a 100 € credit to use in the Ostrom Store—your choice!

SHOP IN THE OSTROM STORE

Explore the Ostrom Store for smart home devices, heating solutions, e-mobility products, and more! Use your referral credit in your Wallet to get discounts on these products.

ENJOY PARTNER PERKS

As a valued Ostrom customer, take advantage of special perks and benefits offered by our partner companies.

DISCOVER SOLAR PV PARTNERS

Ostrom collaborates with trusted solar photovoltaic providers to help you harness solar energy for your home.

GREEN FOOTPRINT

See your positive environmental impact from switching to sustainable energy, and watch it grow as you invite more people to join the Ostrom journey.

JOIN US NOW

Not yet part of the Ostrom community? No problem! Signing up takes only 5 minutes, and we'll handle all the administrative tasks, including notifying your previous provider.

Make the smart, green switch today with Ostrom!