News

The growth of photovoltaic self-consumption has been transforming the way users produce, store and manage energy. As demand increases for more comprehensive solutions, systems that combine hybrid inverters and energy storage are becoming increasingly important, enabling users to maximise the use of solar energy and increase their independence from the electricity grid. 

In this context, Rolear Mais now offers the new BYD Battery-Box HVE and Power-Box solutions, an integrated proposition designed for residential installations. 

Solutions designed to grow with every project 

The new Battery-Box HVE generation has been developed with a strong focus on configuration flexibility. The system allows different battery modules to be combined within the same tower, adapting the storage capacity to the specific requirements of each project. 

The solution can start with a smaller capacity and be expanded later, keeping pace with increasing energy consumption or the installation of additional electrical equipment, such as electric vehicle chargers or heat pumps. This modularity represents a significant advantage for both end users and installers, providing a highly scalable solution ready for future expansion. 

Complementing the storage system, BYD has introduced the new Power-Box SH3 to SH6K hybrid inverters, designed to operate seamlessly with the HVE range. These single-phase units incorporate two MPPT trackers, support up to 200% PV oversizing, and offer charge and discharge currents of up to 35 A, ensuring efficient management of both generated and stored energy. 

System efficiency is another key strength, with performance levels reaching up to 97.7%, helping to maximise the return on investment in solar energy. 

Greater autonomy, safety and operational simplicity 

One of the features most valued by the market is backup capability. The new Power-Box range provides a dedicated emergency output and ultra-fast switchover in the event of a grid failure, ensuring that essential household loads remain supplied. 

In addition, these inverters can deliver power peaks of up to 200% of their rated output for short periods, a particularly useful feature for equipment with high start-up currents. 

From an installation and operational perspective, the solution has been designed to simplify the work of professionals. Integrating both inverter and battery from the same manufacturer enables more intuitive commissioning, unified monitoring, remote firmware updates and remote diagnostics. 

For installers and designers, this translates into reduced system configuration complexity, faster commissioning and easier technical support throughout the system's lifetime. 

Technical expertise supporting the energy transition 

As a specialist distributor with more than 45 years of experience in areas such as electrical materials, air conditioning, lighting and renewable energy, Rolear Mais is committed to providing technologically advanced solutions aligned with the needs of industry professionals. 

The introduction of the new BYD HVE and Power-Box solutions into its product portfolio is part of this strategy, offering a robust response for photovoltaic self-consumption projects that prioritise efficiency, flexibility and safety. 

Rolear Mais complements its product offering with specialised technical support, guidance in selecting the most suitable solution and close collaboration with installers throughout every phase of the project. 

In a rapidly evolving market, this combination of products, expertise and support continues to be a key differentiator for professionals seeking to develop energy storage and self-consumption systems that are ready for the future.  

The evolution of photovoltaic solar energy projects has increased the demand for solutions that combine technical performance, reliability and sustainability. In this context, Rolear Mais, as a specialised distributor of electrical equipment and a Prysmian partner, offers the e-SenS range, a new generation of cables developed to address the challenges of the energy transition and decarbonisation. 

Specifically designed for renewable energy applications, the e-SenS range incorporates recycled raw materials and bio-attributed materials, helping to reduce the carbon footprint of photovoltaic projects without compromising the levels of performance, safety and durability required by the market. This approach is the result of an innovation strategy that combines the quality of Prysmian cables with more sustainable manufacturing processes aligned with carbon neutrality goals. 

Among the flagship solutions is the PRYSOLAR® e-SenS H1Z2Z2-K, a cable designed for direct current (DC) photovoltaic installations, ensuring the connection between solar modules and the remaining equipment within the system. The cable offers high resistance to UV radiation, ozone, humidity and temperature fluctuations, all of which are essential characteristics for ensuring the long-term reliability of photovoltaic systems. These properties make it particularly suitable for solar parks, self-consumption photovoltaic systems, renewable energy power plants and other electrical infrastructures connected to the photovoltaic sector. 

The e-SenS range also includes solutions for other stages of solar farm electrical infrastructure, supporting the flow of energy from photovoltaic modules through to the grid. These cables have been developed to reduce the environmental impact of projects through the use of recycled copper and aluminium, materials whose reuse contributes to significant reductions in energy consumption and emissions associated with manufacturing. 
For installers, designers and engineers, the adoption of sustainable cables represents an additional opportunity to incorporate environmental criteria into projects without compromising the technical quality of the installation. Prysmian also provides assessment tools that enable professionals to quantify the reduction in emissions achieved through the use of these solutions in photovoltaic projects. 

As a distributor with more than 45 years of experience in electrical equipment, electrical cables, renewable energy, HVAC and lighting solutions, Rolear Mais keeps pace with the technological evolution of the sector and provides professionals with access to the most suitable solutions for every application. The introduction of the Prysmian e-SenS range further reinforces this commitment, enabling the development of photovoltaic installations that are more efficient, reliable and aligned with today’s sustainability requirements. 

Because the energy transition depends not only on the production of renewable energy, but also on the quality of the components that make every project possible. 

New Prysmian Afumex Cable Range: Enhanced Safety, Sustainability and Installation Efficiency 

In the electrical materials sector, selecting the right cable remains a key factor in ensuring the safety, durability and performance of any electrical installation. As a specialised distributor and Prysmian partner, Rolear Mais closely follows the evolution of the solutions shaping the industry. One of the latest examples is the new generation of AFUMEX® Class 750 V (AS), a benchmark in the high-safety electrical cable market.

Developed to meet today’s requirements, the new Prysmian Afumex cable range combines improvements in safety, sustainability and ease of installation. This halogen-free cable features low smoke emission and reduced release of toxic and corrosive gases in the event of a fire, helping to protect both people and property. With a Cca-s1b,d1,a1 classification, it does not propagate flames or fire, making it particularly suitable for buildings where safety is a critical requirement.

One of the key innovations of this new generation is related to on-site installation. Thanks to a technology that delivers 29% greater sliding performance than the market average, the cable can be pulled through conduits and ducts more easily, reducing installation effort and contributing to faster and more efficient project execution. In addition, its design simplifies stripping and handling, improving productivity for professionals on site. 

Sustainability is another cornerstone of this evolution. The new Afumex is manufactured using recycled copper and 100% renewable electricity, enabling a reduction of approximately 24% in CO₂ emissions compared with conventional solutions. The packaging has also been redesigned and is now made from 100% recycled FSC-certified cardboard, while offering improved strength for better protection and transportation on site. 

For specific safety applications, the Afumex family also includes fire-resistant solutions, designed to ensure the continued operation of critical systems such as emergency lighting, smoke control systems, pressurisation systems and safety lifts during fire situations. These applications further reinforce the range’s position as one of the most comprehensive solutions available for demanding electrical infrastructures. 

Through its partnership with Prysmian, Rolear Mais continues to strengthen its portfolio of leading solutions for electrical installations, providing professionals with products that combine safety, performance and sustainability. This commitment reflects the ongoing evolution of the sector and meets the needs of those who design, install and maintain electrical infrastructures. 

Academia Rolear introduces new training programmes designed to enhance technical expertise and improve safety in electrical installations. 

The reliability of electrical installations and their ability to withstand disturbances in the grid depend not only on the quality of the equipment, but also on the competence of those who design, install and operate them. Academia Rolear is launching two structured training courses designed to meet the needs of the professional market and raise the standards of safety and technical compliance in projects and asset operation. The new courses,“Electric Vehicle Charging – Installation and Technical Standards” and“Safety in Electrical Work (e-learning)”, are aimed at installers, designers, operation technicians and maintenance managers seeking practical, up-to-date technical knowledge. 

Electric Mobility and Technical Standards: A Challenge for the Industry 

Electric mobility is one of the fastest-growing segments of Portugal’s electrical infrastructure sector, requiring specialised expertise beyond conventional electrical installations. The“Electric Vehicle Charging – Installation and Technical Standards” course focuses on providing the technical skills needed to implement safe and resilient charging systems. 

This course covers the current technical standards and regulations governing low-voltage electrical installations, while exploring charging modes, socket and connector types, and protection systems against overcurrents and overvoltages. Particular attention is given to circuit sizing and load management, both essential to preventing local grid instability and ensuring the long-term performance of equipment. For designers and installers, this training provides a significant competitive advantage, enabling them to deliver solutions that fully comply with legislation while ensuring end-user safety. The resilience of charging infrastructure depends on the quality of its installation, and this course provides the technical expertise required to prevent overheating, insulation failures and electrical network imbalances within buildings.  

Electrical Safety as a Pillar of Resilience 

Safety is the first requirement of any resilient system. The new“Safety in Electrical Work” course, available in an e-learning format, has been developed to address the critical need to prevent occupational risks in electrical environments. The training focuses on essential safety procedures for professionals working in low-, medium- and high-voltage installations. 

The course content covers risk assessment, safety distances, the use of personal and collective protective equipment, and intervention protocols in the event of an accident. Through the e-learning format, Academia Rolear provides flexible access to this knowledge without compromising technical rigour. For professionals, the benefits are twofold: a significant reduction in accident risks and increased confidence when carrying out maintenance and network operation tasks. A professional who understands electrical risks and preventive measures is key to ensuring a safer and more reliable electrical network, less prone to failures caused by human error. 

Training as a Benefit for the Professional Ecosystem 

For installers, designers and engineers, these courses translate into greater technical autonomy, fewer errors and improved project predictability. Mastery of safety procedures and technical standards enhances the quality of proposals while improving communication with inspectors and regulatory entities.  

For individual professionals, the training strengthens technical authority and increases the value of their service portfolio in an increasingly competitive and regulated market. For companies, investing in team qualification leads to greater productivity, reduced costs associated with rework or corrective maintenance, and, above all, improved safety for people and assets. Specialisation in electrical safety and charging infrastructure enables professionals to anticipate customer needs and provide technical consultancy that adds real value to projects. By mastering technical standards, professionals reduce the risk of legal and technical non-compliance, ensuring that electrical network resilience begins with rigorous design and execution. 

Certified Training Backed by the Academia Rolear Quality Seal 

Established with the goal of raising competency standards within the technical sector, Academia Rolear has been a DGERT-certified training provider since 2013. Over the past decade, it has become a recognised benchmark for professional skills development, particularly in areas characterised by rapid technological evolution. Its greatest strength lies in delivering training designed by specialists for specialists, supported by practical training facilities and methodologies that encourage continuous learning. Certification ensures that every course meets high pedagogical and technical standards, providing professionals and organisations with officially recognised competencies that comply with market and regulatory requirements. 

Built on the Expertise of Grupo Rolear 

Academia Rolear’s authority in the technical training market is closely linked to the strength and experience of Grupo Rolear. With more than 45 years of activity, the Group has established itself as a specialist in areas such as electrical engineering, HVAC, infrastructure and renewable energy. This extensive field experience provides a deep understanding of the real challenges faced by industry professionals. The combination of technical equipment distribution and the execution of complex projects gives the Group a practical and up-to-date perspective that is directly transferred to the Academy’s training programmes. 

This synergy between industrial know-how and technical education ensures that training is not merely theoretical, but instead delivers immediately applicable solutions for addressing critical safety and efficiency challenges. In an industry where technology evolves at an unprecedented pace, stagnation represents the greatest risk to network safety. Remaining true to its motto,“There are things that cannot stop”, Grupo Rolear recognises that service continuity and network stability depend on the expertise of those who work with them. Academia Rolear therefore continues its commitment to innovation in professional training, equipping the national market with the knowledge required to keep pace with best practices in engineering and safety. By choosing Academia Rolear, electrical sector professionals are not simply enrolling in a course—they are joining an ecosystem of knowledge built on technical precision and a commitment to excellence. 

For more information on all courses and registrations, visit academiarolear.pt. 

APIRAC (the Portuguese Association of the Refrigeration and Air Conditioning Industry) promoted, in late 2025 and early 2026, a cycle of regional meetings aimed at discussing the HVAC sector with companies and professionals working in Heating, Ventilation and Air Conditioning. 

The meetings took place in Lisbon, Porto and Faro, creating valuable opportunities for dialogue on key structural topics for the future of the sector, including training, waste management, environmental responsibility and the regulatory framework. 

At the Faro session, held on 16 January, the panel of speakers included Sílvia Rosa, Product Manager for Air Conditioning and Ventilation at Rolear Mais, who highlighted the role of distribution in supporting installer clients and acting as a link between the market and manufacturers. 

APIRAC’s initiative also included an open debate among participants, addressing practical issues that directly impact air conditioning installation activities. Through these “Conversations with the Sector”, the association aims to identify shared challenges, with a view to supporting a more sustainable, technically robust and properly regulated transition for the HVAC sector.