Welcome to Altenia
Innovation and experience for advanced energy solutions
A trusted partner for development and maintenance of energy infrastructure
From design to construction, from maintencance to regeneration, we respond promptly to market needs, contributing to the operational continuity and maximizing energy assets performances. This is made possible also thanks to the expertise of our subsidiaries, STE Energy and Half Bridge Automation.
Our solutions
Comprehensive support for the end-to-end management of electrical infrastructures
-

Engineering, Procurement & Construction
Find out more -

Operation & Maintenance
Find out more -

Revamping & Repowering
Find out more -

Energy advisory services
Find out more -

Services and digital solutions
Find out more -

Power continuity
Find out more
Our projects
Our results
Altenia News
-
Altenia realized a 1 MW solar park for the Hyround project
The plant produces green hydrogen for the local network of Medea (Italgas Group)
-
Altenia completed a revamping and repowering project
A project that transforms existing infrastructure into sustainable solutions for the future of energy
-
Altenia realized a photovoltaic plant for Plenitude
Plenitude announces the start of production of the 2.75 MWp photovoltaic plant
-
Altenia leads agrivoltaic development in Southern Italy
Agreement signed with Repower for a 67.2 MW project in Ciminna (PA)
-
STE Energy joins Altenia
The acquisition strengthens expertise and presence in the energy sector
-
Massimo La Gioia, CEO of Altenia, at Taranto Eco Forum 2025
Focus on renewables and sustainable development
-
Two photovoltaic plants inaugurated in Montenero di Bisaccia (CB)
Built for REDEN, featuring advanced technical solutions and O&M management
-
Altenia and Terna Energy Solutions at Intersolar Europe 2025
The leading trade fair for the solar industry
-
New electrical substation completed in Tarquinia
150/30 kV user station built to connect renewable plants


