ABB launches Proteus portfolio for utility-scale solar and energy storage projects
ABB has launched its Proteus photovoltaic (PV) and Battery Energy Storage System (BESS) portfolio, targeting the growing demand for power conversion and grid integration solutions as utility-scale renewable energy deployment accelerates globally.
The company said the portfolio is designed for utilities, power producers and renewable energy developers, with solutions aimed at improving energy yield, grid stability and operational reliability.
Focus on utility-scale renewable energy
According to the International Energy Agency (IEA), utility-scale renewable electricity generation is expected to grow by 60% over the next four years. ABB said this growth is increasing demand for reliable and efficient power conversion technologies, particularly in major renewable energy markets such as China, India and the United States.
The company will showcase its new Proteus solar inverter at the Intersolar 2026 exhibition in Munich, Germany, from June 22 to June 25.
Power conversion technology
ABB said the enhanced Proteus portfolio includes inverters, converter stations and control systems designed for utility-scale solar and energy storage projects.
The systems offer efficiency of up to 99.45%, aimed at maximising energy yield from renewable energy assets. The company also stated that the solutions deliver total harmonic distortion of current (THDi) below 0.7%, helping reduce equipment stress and support longer system life.
The portfolio incorporates a hybrid liquid and air cooling system, while a compact design is intended to reduce installation complexity, transportation requirements and on-site assembly work. ABB said the new Proteus inverter also features improved airflow management and enhanced build quality to support long-term operation across different environmental conditions.
Battery energy storage applications
ABB’s Proteus BESS portfolio includes bi-directional converter stations and control systems designed to support grid stability as renewable energy penetration increases.
The systems offer grid-forming and black-start capabilities, enabling energy storage projects to support grid operations during disturbances and power restoration events. ABB said the solutions are battery-agnostic and designed to operate with ultra-low harmonic distortion.
The company expects demand for BESS solutions to increase as power systems integrate larger volumes of variable renewable energy and seek greater flexibility between electricity generation and consumption.
Installed base and market presence
ABB said it has installed more than 120 GW of power conversion capacity globally and operates in over 70 countries.
The company stated that the Proteus portfolio has been designed for a service life of 30 years and is supported by lifecycle services covering operation, maintenance and long-term asset management.
Photo credit: ABB
