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An italian company,
a global attitude.

Take a moment to read about us.
This is where we come from and what we made possible.

ESI - Energy System Integrator


ESI stands for 'Energy System Integrator', operating as an EPC in the realisation of large-scale photovoltaic systems offering turnkey solutions and as a System Integrator in the design and construction of rural mini-grids.

A motivated and highly specialised team of technicians, architects and engineers accompanies the customer throughout the project, guaranteeing a tailor-made result and perfect integration with the surrounding environment.









Ton CO2 avoided



With energy we bring rights

ESI works so that people in the world's most remote and disadvantaged areas can also benefit from the advantages of strictly renewable energy. To this end, we use the best technologies to ensure that all projects are environmentally, socially and economically sustainable.


Our value



the continuous search for sustainable technologies for customers and the environment

Group spirit

Group spirit

sense of belonging to a young family with big goals

Solidarity & Cooperation

Solidarity & Cooperation

which takes the form of partnerships with NGOs and companies to provide energy in the most remote places

Passion & Tenacity

Passion & Tenacity

the energy that drives us to overcome challenges increasingly complex


Felice Egidi

President (independent)
Chairman of the board



Riccardo Di Pietrogiacomo

Chief Executive Officer
Board member



Stefano Plocco

Board member



Antonio De Tata

Board Member with responsibility for commercial development and strategic development – Board Member


Daniel Cindy Cervini

Chief Operating Officer



Angelo Trementozzi

Chief Financial Officer



How ESI SpA was born

 logo esi



Birth of ESI SpA

The company changed its name to ESI SPA, continued to operate as an EPC in the construction of large-scale photovoltaic plants offering turnkey solutions and as a System Integrator in the design and construction of rural mini-grids, particularly in Africa, and closed the financial year with a value of production of approximately EUR 16 million.

Since 2020, it has been listed on Euronet Growth Milan (Ex AIM Italy) managed by Borsa Italiana S.p.A.

Logo WSI Spain



Focusing on renewable energy

WSI achieves a turnover of 4.1 million euros. At the end of the same year, the company Work System Integrator Spain SL and a Unión Temporal de Empresas (UTE) are established, both with headquarters in Spain.


 logo ws


Working beyond borders

Work System Integrator SRL (WSI) was born in 2018. The Company operates in the renewable energy market, both as an EPC and as a system integrator. It is focused on different market segments: photovoltaic systems, wind power plants, off-grid systems, mini-grid systems, hybrid systems, storage systems.



We've made our quality certificates available for download


ISO 9001
ISO 14001
ISO 45001