Soldera’s Ethos: Why We Use Sealed Hybrid Tenders

Soldera News
09/2025
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At Soldera, our word is our bond. Our responsibility is simple: get the best possible outcomes for our producers while running a fair auction for buyers. That’s why our auctions are competitive, and why the highest bidder always wins.

Buyers: What you can expect from us

  • Tender sheet: After indicative volumes, you’ll receive actual tender volumes in an Excel sheet, covering both spot and forward.
  • Free-to-bid auctions. Buyers are free to place bids via email. We welcome competition and price discovery.
  • Privacy-first: Producer details are never revealed to buyers, and vice versa. We shield the information of all parties to ensure a secure sales process.
  • Highest-bid wins. We have never sold to anyone other than the highest bidder. There is no preferential treatment.
  • No backtracking. Soldera has never agreed a deal and then backed out. If we say “yes,” we mean it.
  • Fast delivery: You’ll receive GOs promptly. Our standard practice is delivery first and then we issue an invoice. In line with industry standard, we expect payment within 10 business days from invoice. If you are a smaller or lesser-known buyer to us, we might require payment up-front.

Here’s exactly how our tenders are structured:

Soldera Illustrative Tender

Total Volume
120,762 MWh
Delivery
Immediate
Vintages
2024-2025
AIB AIB-Hub
Grid Grid Connected
Countries EE, LT, LV, FI, SE
Quality Quality Labels
Solar
Solar
62,422 MWh
52%
Wind
Wind
46,541 MWh
39%
Hydro
Hydro
5,538 MWh
5%
Biomass
Biomass
5,524 MWh
5%
Format: Hybrid sealed tender • Partial volumes accepted • Highest bid wins
Deadline: 14:00 Berlin (GMT+2) • Bids received after deadline may be discarded
Spot Delivery: Immediate upon contract signing • 99% vintage 2025 • 78% COD <5 years
Forward Delivery: 2026 quarterly deliveries • Production quarter + 1 month settlement
Ecolabel Compatibility: 37% EKOenergy pre-approved • 28% OK-power compatible (spot)

At Soldera, trust is crucial to our business model. Producers list with us because our auctions actively maximize net revenue and because our tenders are reliable. On top of this, our buyers know the rules won’t change - and that we’re a predictable counterparty.

We’re disrupting this market like few ever have tried to. Our antidote to rumors is consistency: the same transparent rules, applied the same way, every time.

Interested in buying?

Email trade@soldera.org to get started, or join our tender list here.

⭢ Join our tender list
⭢ Sign up to our newsletter
⭢ Pilot our virtual accounts

Oliver Bonallack is Founder's Associate at Soldera. His writings focus on Energy Attribute Certificates (EACs) and Guarantees of Origin (GOs). He has a background in venture analysis and public policy, with a First Class BSc in Politics & International Relations from the University of Bristol alongside top performance in the Venture Institute and the Terra.do Climate Fellowship. His climate and energy experience includes building AI-first workflows for registry operations and investing in climate technology startups via Collective VC and Team Ignite Ventures. His day-to-day work focuses on compliance and registry ops, market data and policy research, content and GTM systems, and automation across renewable certificate processes

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