What Terna Energy Solutions does

Terna Energy Solutions S.r.l. (TES) is the independent commercial operator of Terna Group, Italy's national electricity transmission system operator and the largest independent TSO in Europe. Headquartered in Rome, the company delivers integrated energy infrastructure, manufacturing, and connectivity solutions through three service lines: Energy Solutions (high-voltage infrastructure construction and O&M, photovoltaic EPC and O&M, utility-scale storage EPC, and energy advisory), Manufacturing (power and industrial transformers via subsidiary Tamini Trasformatori, and high/medium/low-voltage cables via Brugg Cabel AG), and Connectivity (dark fiber Indefeasible Right of Use, housing services within electrical substations, and fiber O&M). Underlying technology includes OPGW (Optical Fiber inside the Ground Wire) fiber deployed along high-voltage power lines, STATCOM power quality systems, and transformer manufacturing capability including a 670 MVA unit—the largest ever built in Italy.

TES serves industrial companies, energy producers, telecommunications operators, and data center operators primarily in Italy with select European exposure (Spain, France, Belgium). The company operates an enterprise field sales motion supplemented by event-driven demand generation (Data Center Nation, NAMEX, KEY Energy). Revenue is generated through a mix of one-time EPC contracts, recurring O&M subscriptions, hardware sales (transformers, cables), long-term IRU fiber licensing, and professional services. Revenue and EBITDA both grew significantly in the period through March 2026 per Terna board results, supported by an €2+ billion investment plan to expand the fiber optic network from 46,000 km today to 54,000 km with 550,000 fiber pairs by 2028. Wholly-owned subsidiaries include Altenia (high voltage, storage, PV), Tamini, Brugg Kabel AG and affiliates, Half Bridge Automation (PV inverter regeneration), and the recently agreed Energy System Services acquisition for HV/MV renewables services.

Name

Terna Energy Solutions

Legal name

Terna Energy Solutions S.r.l.

Website

https://energysolutions.terna.it

Company type

Private

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Terna Energy Solutions is the independent commercial operator of Terna Group, providing integrated energy infrastructure, transformer and cable manufacturing, and dark fiber connectivity solutions to industrial, energy, telecom, and data center customers across Europe.

Ownership category

akta.pro rank

Product category

Energy Infrastructure Services

NAICS

Communication and Energy Wire and Cable Manufacturing (33592), Communications Equipment Manufacturing (3342), Solar Electric Power Generation (221114), Electric Power Generation (22111)

SIC

Electronic Coils, Transformers & Other Inductors (3677), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Transmission Reliability, Resilience & Emergency Restoration (NERC/ENTSO-E Compliance) (EUADAAAO)

akta.pro secondary industry

SCADA, Controls & Communications Integration (RTU, Fiber, Networking) (EUAEADAD)

Keywords

• High voltage infrastructure
• Power transformer manufacturing
• Photovoltaic EPC services
• Dark fiber connectivity
• Energy storage systems

Headquarters

HQ city

Rome

HQ country

Italy

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. EPC (Engineering, Procurement, Construction) Services: Turnkey project delivery for high-voltage infrastructure, photovoltaic plants, and storage systems. Includes design, procurement, construction, and commissioning services.
2. Operation & Maintenance Services: Ongoing O&M services for high-voltage infrastructure, photovoltaic plants, fiber optic networks, and storage systems to ensure optimal performance and availability.
3. Equipment Supply (Transformers and Cables): Manufacturing and supply of power transformers, industrial transformers, and high/medium/low voltage cables for energy and industrial applications.
4. Dark Fiber IRU (Indefeasible Right of Use): Long-term exclusive fiber optic network access contracts providing customers with irrevocable usage rights to aerial fiber infrastructure.
5. Energy Advisory Services: Energy consulting including diagnostic services, monitoring plans, and Energy Performance Contract (EnPC) engagements for efficiency improvements.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

Terna Energy Solutions is the independent operator of the Terna Group providing integrated energy and connectivity infrastructure solutions for the free market. Through its subsidiaries Altenia, Tamini, Brugg Cables, and Half Bridge Automation, the company delivers high-voltage infrastructure construction and maintenance, photovoltaic and storage plant EPC and O&M, power and industrial transformer manufacturing, cable and accessory systems, and dark fiber connectivity via Indefeasible Right of Use (IRU) agreements.

Product overview

Terna Energy Solutions operates as an integrated portfolio company offering three core service lines: Energy Solutions (covering high-voltage infrastructure, photovoltaic systems via EPC/O&M, energy advisory, and utility-scale storage), Manufacturing (power/industrial transformers through Tamini and cables through Brugg Cables), and Connectivity (dark fiber IRU services, housing solutions, and O&M for fiber optic infrastructure). The company leverages subsidiaries Altenia, Tamini, Brugg Cables, and Half Bridge Automation to deliver comprehensive services across the energy and digital transition sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• High Voltage Infrastructure Services Construction, maintenance and monitoring services for high-voltage infrastructures for industrial companies, energy producers, and grid-connected facilities. Engagements span design, planning, construction and commissioning of substations up to 150 kV, full asset lifecycle support, and integration with Italy's national transmission grid operated by Terna.
• Photovoltaic EPC and O&M Turnkey Engineering, Procurement and Construction of photovoltaic plants combined with ongoing Operation and Maintenance to maximize availability and performance. Targeted at independent power producers, renewable developers, and industrial rooftop installations, with over 1 GWp delivered in EPC mode and 1.5+ GWp under management.
• Energy Advisory Services Customer-facing advisory services helping industrial and energy clients identify the optimal solution from initial design through full realization, integrating multiple technologies (high voltage, storage, photovoltaic, transformers, cables) into a single project roadmap. Includes diagnostic services, monitoring plans, and Energy Performance Contract (EnPC) engagements aimed at efficiency improvements.
• Utility-Scale Storage EPC EPC services for utility-scale, grid-connected energy storage plants, from design drawings for plant construction through to testing and acceptance. Supports grid stability, renewable integration, and industrial power management for utilities, energy producers and large industrial users.
• Power and Industrial Transformers Design, manufacturing, installation and post-sales lifecycle service for power transformers and industrial transformers, produced at the Tamini facilities in Legnano and Ospitaletto. Capable of producing Italy's largest power transformers (up to 670 MVA delivered for Ansaldo Energia), supplied to utilities, power generation, and energy-intensive industries across Europe.
• Cables and Accessories Design, production, installation and maintenance of high, medium and low voltage cables together with accessories and complete system solutions for power plants, energy providers, and industrial applications. Delivered via Brugg Cables group entities with over 125 years of cable manufacturing heritage and 5,000+ accessories installed worldwide.
• Dark Fiber Connectivity (IRU) Long-term Dark Fiber provision within an Indefeasible Right of Use (IRU) framework, plus housing services at electrical substations and O&M for fiber infrastructure. Built on OPGW technology deployed along Terna Group's high-voltage power lines (46,000 km of fiber-equipped lines, 410,000 available pairs today; targeting 54,000 km and 550,000 pairs by 2028), offered to telecom operators and data centers under neutrality and non-discrimination principles.

Quantifiable outcome

• Over 150 high-voltage plants completed
• +4 more outcomes

Named customers11 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators15 records

Direct peers

• Nexans: Global cable manufacturer specializing in HV power cables, accessories, and renewable energy cable systems. Comparable to Brugg Cables on HV/MV cable supply for power and renewables projects.
• Siemens Energy: Major manufacturer of power transformers, HV switchgear, grid technologies, and renewable EPC services. Overlaps with TES across the full HV-to-PV value chain including grid integration and storage.
• NKT A/S: European HV cable manufacturer with strong offshore wind and substation cable business. Comparable to Brugg's HV cable portfolio serving renewable and grid applications.
• Prysmian Group: World's largest cable manufacturer, including HV and submarine cables. Most direct competitor to TES subsidiary Brugg Cables in HV/MV cable systems for utilities and renewables.
• Hitachi Energy (formerly ABB Power Grids): Global leader in transformers, high-voltage equipment, and grid solutions. Most directly comparable to TES on the transformer/HV infrastructure side (Tamini competes with Hitachi Energy in industrial and power transformers) and on renewable integration/SCADA offerings.

Regional players

• Open Fiber: Italian wholesale fiber-to-the-home and dark fiber operator with national infrastructure ambitions. Most direct competitor to TES's OPGW dark-fiber IRU business in the Italian market.
• Snam S.p.A. Italian energy infrastructure operator (gas transmission) that has diversified into energy transition infrastructure including fiber and hydrogen. Comparable as a large Italian regulated-infrastructure operator expanding into adjacent connectivity businesses.

Broad incumbents

• Schneider Electric: Global broad-line electrical equipment, energy management, and grid solutions provider. Overlaps with TES on substations, transformer monitoring, STATCOM/power quality, and energy advisory services, though with a much larger industrial-controls portfolio.

Emerging players

• Enel Green Power: Italian-based global renewable IPP active in PV, wind, and storage with internal EPC and O&M capabilities. Overlaps with TES as a customer-competitor in Italian PV EPC and as a counterpart on large-scale renewable integration projects.
• Statkraft: Europe's largest renewable energy generator with significant EPC and O&M exposure. Comparable to TES on the renewable infrastructure and grid-integration side, though Statkraft is principally an IPP/operator rather than an equipment supplier.

Market position

Strengths5 records

Weaknesses5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@TernaEnergySolutions
• LinkedInlinkedin.com/company/ternaenergysolutions

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Terna Energy Solutions