The adoption of Product–Service Systems (PSS) in a business strategy is often mainly associated with the servitization process, where a service component is added to the product component in order to improve the value proposition of the company and better satisfy the customer’s needs. The productization phenomenon is far less studied in literature, but growingly prominent in today’s market. In particular, companies in the utilities sector have been exploring the potentialities of productization and proposing new business models for improving their offer to the customers, in order to be more and more competitive on the market. In this paper, we provide a first analysis and classification of productization strategies in the utilities sector, starting from experiences in the Italian market, with the aim of understanding which can be the main benefits of a PSS approach in this field, considering the effects on the three dimensions of sustainability (economic, environmental, and social).