The green energy exchange for tomorrow
Buy 100% certified green power for the next day — hourly granularity, physical delivery, and Guarantees of Origin included. Fully digital.
Green SPOT is a green energy spot exchange
Procure certified green electricity on the day-ahead market through a fully digital platform — with physical delivery and Guarantees of Origin included.
100% green power
Every MWh is certified green electricity from renewable sources. No greenwashing, no grey power.
Hourly granularity
Buy exactly the hours you need. Build any load curve for the next day with 24 individual hourly slots.
Digital exchange
Trade on the same familiar interface as 1-Click PPA. No phone calls, no brokers — fully digital.
Daily auction for the next day
Daily auction
Submit your bids for 24 individual hourly slots for the following day. Set volume and price limits for each hour.
Prices published
Hourly prices for the next day are determined. You receive confirmation of your matched trades immediately.
Physical delivery
Green power is physically delivered through Otark's balance group. Guarantees of Origin are transferred automatically.
Intraday — Coming soon
Intraday trading for short-term adjustments will be available in a future release. Stay tuned.
Short-term green energy without the complexity
Everything you need for green spot market procurement, in one platform.
100% green remaining power
All residual power procured through Green SPOT is 100% certified green electricity from renewable sources.
Any load curve
Flexibly procure any hourly load curve for the next day. Adapt your procurement to your actual consumption pattern.
Granular HKN included
Guarantees of Origin are bundled with every trade. Hourly granularity for maximum traceability and compliance.
Physical delivery
Power is physically delivered through Otark's balance group. No self-organized scheduling required.
Familiar interface
Trade on the same platform as 1-Click PPA. If you already use Otark, you're ready to go — no learning curve.
Germany-wide
Available across all German market areas. One platform for your entire green spot market procurement.
From sign-up to first trade
Sign up
Create your account on the Otark platform and complete the streamlined onboarding process.
Set preferences
Define your procurement volumes, price limits, and preferred trading parameters.
Place orders
Submit bids for the daily Day-Ahead auction before 11:00 for the next day's hourly slots.
Receive power
Otark handles delivery via its balance group, daily settlement, and automatic HKN transfer.
Daily settlement, simple payment
Daily settlement
Trade execution
Otark Energy Services GmbH
Settlement & delivery
Payment
Buyer pays via SEPA B2B Direct Debit
Seller receives via SEPA Transfer
Otark Energy Services GmbH
As your single contractual counterparty, Otark Energy Services GmbH handles all settlement, delivery, and HKN management.
What makes Green SPOT different
| Traditional Spot | Green SPOT | |
|---|---|---|
| Energy source | Mixed (grey + green) | 100% certified green |
| Certificates | Decoupled (power & GoO separate) | Bundled (power + GoO included) |
| Granularity | Hourly & quarter-hourly auction | Matching-precise hourly slots |
| Platform | Exchange access / external systems | Fully digital all-in-one platform |
| Settlement | Monthly | Daily |
| Delivery | Self-organized | Otark balance group |
| Contract partner | Clearinghouse (CCP) or bilateral | Otark Energy Services GmbH (single point of contact) |
| Onboarding | Weeks | Days |
Ready for green spot trading?
Request Early Access to Green SPOT and be among the first to trade certified green power on the day-ahead market.
Request Early Access