Power Electronics strengthens its leadership in Italy with grid-forming and long-duration storage compliant with Terna’s requirements

Italy’s energy landscape is rapidly evolving as large‑scale storage becomes essential for balancing a growing share of renewables. Power Electronics is contributing to this transition with solutions designed to strengthen operational resilience, support long‑duration applications, and enable new market opportunities for developers and asset owners.

Italy’s transition toward a decarbonized energy mix has placed grid stability and capacity management at the center of the technical discussion. The rapid growth of renewable energy calls for new, fast-response services and an evolution in energy storage system architecture.

In this context, Power Electronics has established itself as a key technological partner, helping ensure operational resilience through advanced power conversion solutions.

A Strategic Partner for Stability and Regulatory Compliance

The Italian transmission and dispatch system, operated by Terna, is governed by very specific technical requirements detailed in the national grid code, including Annex A79 for Battery Energy Storage Systems (BESS) and Annex A68 for photovoltaic plants (PV).

Strict compliance with these standards is essential to ensure the safe and reliable integration of new assets into the grid. For developers, having technology already adapted to these specifications is critical to guarantee technical viability and operational availability from the earliest project stages—particularly when competing in auctions such as MACSE or the capacity market.

With this in mind, Power Electronics delivers storage solutions capable of responding precisely to Terna’s protocols, minimizing technical risk and enabling smooth integration into a highly demanding regulatory landscape.

The company’s PCSM battery inverter, fully compliant with Annex A79, enables critical grid support functionalities such as voltage and reactive power regulation, Power Oscillation Damping (POD), FSM regulation, and Black Start capabilities. By combining these services in a single platform, the system not only ensures regulatory compliance but also maximizes plant availability in fast-response markets and ancillary service programs.

Leadership in Grid-Forming: Resilience and Long-Duration Storage

As long-duration storage becomes essential to Europe’s energy transition, projects increasingly require equipment capable of operating with advanced grid-forming services. The PCSM inverter has been validated in utility-scale installations worldwide, proving its ability to act as a stable voltage source and deliver synthetic inertia to the grid. This capability is critical to mitigating frequency fluctuations and securing the long-term stability of the European power system.

As Samuele Saccone, Business Development Manager at Power Electronics, highlights: “Italy needs technologies that can support the system in capacity markets and fast-response ancillary services. With our PCSM inverter, we offer the optimal solution for long-duration energy storage projects and advanced grid-forming services for large-scale BESS—reducing technical risk and ensuring the operational resilience that Terna and investors require today.”

Additionally, the flexibility of the Multi PCSM architecture enables the connection of up to four independent battery blocks, providing technical scalability for major infrastructure funds and large developers.

Maximizing Profitability and Efficiency in FER-X NZIA Tenders

At the same time, the current tendering environment for solar projects in Italy, particularly under the FER-X NZIA framework, prioritizes cutting-edge technology and European-manufactured components. These criteria reinforce technological sovereignty and strengthen the resilience of the local supply chain.

With a manufacturing capacity of 45 GW, Power Electronics stands out as a key European supplier for projects requiring traceability, reliability, and regulatory compliance. Its HEM central inverter, built on a modular concept that integrates the medium voltage section within a single enclosure, simplifies installation and reduces connection costs.

In FER-X NZIA tenders, where European manufacturing origin is a decisive factor, the HEM and HEMK inverters position themselves as strategic choices to maximize incentives, reduce operational risk, and streamline integration into the Italian regulatory framework.

Meet Us at KEY – The Energy Transition Expo

Power Electronics will participate in KEY – The Energy Transition Expo, taking place from March 4-6, 2026, at the Rimini Expo Centre, Hall B7, Booth 440. The company’s engineering and business development teams will be available to share insights from recent grid-forming projects and discuss how next-generation storage solutions can enhance competitiveness in upcoming public auctions and strengthen Europe’s energy infrastructure.