100% green electricity - without changing your package
With Guarantees of Origin, your electricity becomes 100% renewable - without changing your electricity package
Support ESG goals - electricity verified with green Guarantees of Origin has 0g/kwh CO2 emissions
1 MWh
150 MWh
300 MWh
As safe as a green electricity package.
save up to
30%
Buy certificates of origin without changing your electricity package and save up to 30%
Why Rohesert?
Rohesert is not an ordinary electricity seller
Rohesert doesn't sell electricity or electricity packages. Through Rohesert, you can acquire electricity origin certificates that allow anyone to convert their electricity consumption to renewable energy-based. Flexibly, affordably, and transparently.

- Better price
By purchasing through Rohesert, you pay less for Guarantees of Origins. Our transparent pricing ensures you know exactly how much you're paying for green energy.
- More flexibility
Buy Guarantees of Origin when you need them. No long-term contracts or obligations. You can choose exactly the amount that matches your consumption.
- No long-term contract
With Rohesert, you don't need to sign a long-term contract. Purchase Guarantees of Origin as needed - either one-time or repeatedly, without long-term commitment.
Simple process
How Rohesert works
- Purchase of Guarantees of OriginBuy Guarantees of Origin through the rohesert.ee e-environment.
- Order confirmationAfter completing the purchase, we will send you an order confirmation by email.
- Verification of consumptionWe will verify your renewable energy consumption in Elering's environment within 14 days using certificates of origin.
- Renewable energy confirmationWe will send you an invoice and a confirmation of your verified green energy consumption by email.
- Your electricity is 100% greenThe consumption of renewable energy can be verified in the Elering's renewable energy information system.
Certificate
Rohesert certificate and badge
Purchase at least 50MWh worth of guarantees of origin and we'll issue you a badge and PDF certificate for free. This way you'll increase your company's credibility and show commitment to ESG goals.
PDF Certificate
A professional PDF certificate that proves your company's commitment to using renewable energy.

Contribution to sustainability
Display your company's commitment to environmental responsibility with clear metrics and visual representation of your green energy usage.
Guaranteed origin
The certificate and badge are backed by cancellation certificates issued by Elering.
Badge
A digital badge for your website and marketing materials that showcases your commitment to renewable energy.

Learn more
Frequently asked questions
A Guarantee of Origin (GoO) is an electronic document certifying that 1 MWh of electrical energy consumed has been generated from renewable sources or efficient cogeneration. Issued to producers per the electricity market law and the EU Renewable Energy Directive, it aims to boost renewable energy use, create market demand, and enable eco-friendly consumer choices. These certificates also support investment in the renewable energy sector.
Purchasing Guarantees of Origin allows consumers to support ESG (Environmental, Social, and Governance) goals, ensuring their electricity consumption is environmentally friendly. This aids in reducing carbon footprint and promotes sustainable energy, reflecting the company's commitment to environmental and social responsibility.
The quantity of Guarantees of Origin must equal the amount of electricity consumed during the respective period in megawatt-hours. The quantity of Guarantees of Origin should be rounded up to the nearest MWh. For example, if your consumption last year was 3.4 MWh, you should purchase Guarantees of Origin for 4 MWh.
You can see the amount of electricity consumed in Elering's customer portal. If you are not the owner of a measuring point, ask the measuring point owner for this information or add up the electricity consumed on the basis of your own electricity bills.
When purchasing Guarantees of Origin, select the consumption year you wish to certify as renewable energy-based, like 2024. These certificates validate past periods' consumption, as the exact quantity consumed is known. The consumption of renewable energy from the previous year can be certified until March 31st.
Guarantees of Origin bought from Rohesert.ee are 100% carbon-neutral, sourced exclusively from wind, solar, or hydro energy.
Customers can confirm the use of their Guarantees of Origin by logging into the Elering's renewable energy information system, which provides an overview of their electricity's origin.
To prove the origin of consumed electricity, certificates issued in Estonia or a European Economic Area contracting country, and deleted in the Estonian Origin Certificate Register, are used. If you wish to purchase certificates from a specific country, please contact us directly.
Guarantees of Origin are available for companies registered in Estonia, Estonian citizens with a personal identification code, and non-residents, provided the electricity consumption is in Estonia. Non-Estonian residents should contact us separately using the website form.
Yes, you can. In this case, please tick the appropriate box in the online shop and provide the name of the purchaser, the address of the location, and the name of the owner of the measuring point. The same applies if you don't own the measuring point.
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With renewable energy, you support ESG goals - electricity verified with renewable energy certificates has a CO2 emission of 0g/kWh






