What industrial buyers should consider when choosing a wind PPA: physical and virtual models, YEK-G certificates and key contract clauses.
Exporting industrial companies want to supply electricity from renewable sources under pressure from European buyers and border carbon regulations. A wind PPA is one of the most common routes to that goal, but you need to know which model suits your business.
Physical PPA
Electricity from a specific wind farm is allocated to your meter directly, as an eligible consumer. The price is usually fixed for three to ten years. The advantages are simplicity and price predictability. The drawback is the difficulty of matching wind's variable output with your consumption profile; if output falls short at the hours you need it, you buy the difference from the market.
Virtual (financial) PPA
Electricity keeps coming physically from your current supplier. You sign a fixed-price contract for difference with the wind farm: if the market price is above the contract price the difference is paid to you, and if it is below you pay. This fixes price risk. The model is more complex legally and in accounting and must be structured to comply with local regulation.
YEK-G certificates
A Renewable Energy Guarantee Certificate (YEK-G) verifies the source of 1 MWh of renewable electricity. Even if you buy electricity elsewhere, you can report your consumption as green by purchasing certificates. In carbon footprint reporting, they provide evidence consistent with the market-based method.
Key contract clauses
- Term and price indexation method
- Volume: what share of consumption is covered, and how surplus and shortfall are balanced
- Who carries the imbalance risk
- Change-in-law and force majeure provisions
- Delivery of certificates (YEK-G) and reporting frequency
Suggested starting point
First produce your annual consumption profile at hourly level. Then begin with a scenario where wind covers 30-60% of total consumption, which balances risk and benefit. With the Corporate Green Power Calculator on our site you can roughly see the emissions reduction and price effect.
An example scenario
Consider a packaging plant consuming 12 GWh of electricity a year. If a wind PPA covers 60% of consumption, or 7.2 GWh, it cuts about 3,384 tonnes of Scope 2 emissions a year at 0.47 t CO₂/MWh. That contributes directly to the carbon target in a European customer's supplier audit. If the contract price comes in below the market average, a cost advantage arises at the same time.
Because every business has a different consumption profile, the first step is simply to share your hourly consumption data and compare two or three scenarios together.
Common mistakes
The most frequent mistake is focusing only on the unit price. Volume guarantees, imbalance costs and change-in-law clauses decide the total cost. The second mistake is fixing all consumption in one contract; the 30-60% band leaves flexibility against consumption swings.