The platform can be used to submit buy or sell offers as well as to express interest in active PPA offers. Submitted offers are published anonymously, while the expressions of interest are disclosed by name only to the participant who submitted the relevant offer.

The platform has already matched buyers and sellers on eight potential PPAs, according to an EnExGroup representative. The exchange also provides a PPA contract template as a starting point for potential negotiations outside the platform. If a PPA is signed, the counterparties could report it to the platform on a voluntary basis.

The platform requires an EUR 500 registration fee and an EUR 3,000 annual fee. Already, 21 companies have joined as members, including international players such as AXPO, GEN-I, MET Energy Trading and Enery.

Market impact

The new platform aims to bring together PPA suppliers and offtakers to facilitate agreement negotiations. While submitted buy and sell offers are not binding, the platform is expected to drive liquidity in Greece’s developing PPA market by helping participants monitor opportunities. The membership fees may be a barrier to smaller market players, however.

Contracted PPA capacity is expected to grow in Greece this and next year after the government approved almost 3 GW worth of renewable projects for priority grid access via a decree on 27 August 2024.

To qualify, developers need to sign a PPA with an energy intensive buyer with a minimum duration of eight years and bring the project online by 31 December 2026. A local source reported that official grid connection terms were offered to the selected projects about three months ago.

With 0.74 GW contracted, Greece ranked as the third largest market after Spain and Italy in terms of contracted capacity in the first six months of 2025. However, this capacity was contracted under four large-sized deals with buyer interest coming from utilities and an energy trader.

Out of 16 recorded PPAs in Greece to date, totaling 2.37 GW capacity and 4.86 TWh annual production, only six have involved corporate buyers, according to Veyt’s PPA database.

Greece-headquartered industrial and energy company Metlen (previously known as Mytilineos) has been the biggest buyer, contracting a total of 481 MW solar and 78 MW onshore wind capacity under three PPAs signed across 2023 and 2024. Meanwhile, Amazon signed its first ever PPA in Greece last year for an undisclosed onshore wind capacity.

With the rapid expansion of battery storage, we also expect to start seeing the first hybrid PPAs in Greece. The government recently concluded a series of battery storage auctions, supporting around 900 MW capacity with the first projects expected to come online in 2025.

An additional 4.7 GW storage capacity is planned to come online on market terms by 2030. While some of this capacity may operate as stand-alone assets, others are likely to be connected to solar and wind projects.

On 2 July 2025, the Veyt PPA Price index stood at EUR 78.18/MWh for a three-year pay-as-produced solar PPA and at EUR 91.40/MWh for a three-year pay-as-produced onshore wind PPA in Greece. The newly-launched index provides a robust and unbiased reference point for valuing PPAs.