How long should a PPA be? 3, 5 or 10 years

The price in a PPA is fixed for the whole term. So the term decides two things at once: how long your power price is protected, and how long you are bound to it. It is often the first thing a finance team asks about.

PPAs are getting shorter

The classic PPA ran for 10 to 15 years. The average length of announced European deals fell from 16.5 years in 2016 to just over 11 years in 2021. Since then the short end has grown fast. Deals of 1 to 4 years rose from about 6.8% of the market in 2025 to about 14.6% so far in 2026, and deals of 5 to 9 years from 12.3% to 20.8%.

In Denmark, the 25 companies that share the Mesballe solar park signed for five years.

What a long term gives you

• A known power price for a large part of your use, for many budget years.
• A better chance that the plant is new. Banks lend against the contract, so a plant that is not built yet usually needs a long one.
• A stronger story for the climate report: your contract helped build new capacity.

What a short term gives you

• Less risk if the market price falls well below your fixed price.
• Less risk if your own use changes: a site closes, a line moves, or you electrify more than planned.
• Often less security to provide, because the producer is exposed to you for fewer years.
• A chance to try a PPA before you commit for a decade.

The plant often decides

A plant that is already running has its financing in place. It can sell for three or five years. A plant that still needs financing usually needs a buyer for longer. So the question is not only how long you want to commit, but which plant you want to buy from.

Hybrid plants with a battery add a third option. They can deliver in more of your hours, which makes a longer term easier to defend, because less of the power has to be sold back. See how much of a buyer’s hours solar, wind and hybrid can cover.

Five questions to answer before you choose

1. How sure are you of your power use in year 3, year 5 and year 10?
2. How far ahead does your budget, and your board, think?
3. Do you need new capacity for your climate target, or is a named plant enough?
4. Can you provide a guarantee for the whole term, or only for part of it?
5. What happens to the contract if you sell a site or the company changes owner?

Allow time either way. In Europe a PPA takes about 12 months on average from first talk to signature.

Where Symbolon fits

Symbolon is a PPA broker in the Nordics. We show you plants that can sell for the term you want, running or still to be built, and check each one against your hours before you talk price. It is free for buyers. See how Symbolon works for buyers, or read the questions your CFO will ask about a PPA.