METKA EGN is pleased to announce that it has signed an agreement with HC ESS3 Ltd, a company set up by its long-term client Corylus Capital LLP (previously known as Hazel Capital, see also the reference to Gresham House New Energy (* below) for the EPC of a new 20 MW hybrid energy storage system (ESS) project in the United Kingdom, which will provide Fast Frequency Response (FFR) and other ancillary services to National Grid.

This is the third contract for METKA EGN in partnership with Corylus Capital.  It follows on from the recent achievement of the full commissioning of a 30MW ESS project, designed as three hybrid ESS sites in different locations, which in turn followed the first project which was a 20 MW ESS project commissioned in Q1 2017.  METKA EGN has completed these projects under EPC contracts and will provide ongoing operations and maintenance services for all sites.

Ben Guest, Founder and Managing Partner of Corylus Capital and Head of Gresham House New Energy stated, “We have entrusted METKA EGN with delivering a series of complex hybrid energy storage projects on demanding time schedules and are delighted that this has been a great success for both parties. We appreciate enormously our long-term partnership with METKA-EGN”.

Nikos Papapetrou, CEO of METKA EGN Ltd stated “We are very pleased to have this opportunity to continue our long-term partnership with Corylus Capital with whom we have been cooperating with since 2013, initially for solar PV projects and now jointly implementing these innovative FFR projects.”

These projects add to the 57.6MWp / 4.2 MWh solar-storage hybrid project completed for Sonnedix in Puerto Rico in 2016, confirming METKA EGN as one of the leading contractors for energy storage and related hybrid projects globally.

METKA EGN: METKA EGN is a joint venture between MYTILINEOS and the EGNATIA Group, focused on development and construction of utility scale projects for the global solar power and energy storage markets. The company serves major international clients primarily in the markets of Europe, Middle East, Central Asia and the Americas. Further information is available on the company website at

*Corylus Capital LLP: Previously known as Hazel Capital LLP prior to the acquisition of Hazel Capital’s fund management business by Gresham House plc, Corylus Capital has been a leading fund manager and developer in the UK renewable Energy market.  Today, Corylus is completing its final ESS project (HC ESS3 Ltd) while the team has migrated fully to Gresham House as Gresham House New Energy where the team has continued to develop and manage its various portfolios of new energy projects.