The April issue of FotoVolt is online. The special coverage “News in products and services of Intersolar Summit Brasil”, on page 36, presents products, systems and services that will be highlighted at the “Summit 2023” (Fortaleza, April 18-19) which will address policies, legal and legislative challenges, financing, grid integration and solar energy technologies, green hydrogen and energy storage. See on page 54 the article “The protection of signal lines in photovoltaic plants”, showing that, for the safety and viability of solar PV plants, it is necessary to protect the installations against the effects of atmospheric discharges, direct and indirect, including electrical signal lines. Furthermore, on page 60, the article “Brazilian potential and sizing of photovoltaic/H2V system”, presenting concepts related to green hydrogen and its association with solar energy, in the global and national context, in addition to a calculation procedure for sizing a hybrid system of photovoltaic generation with electrochemical batteries, with water electrolysis, hydrogen storage and fuel cell. This issue also brings the update “Batteries for PV energy storage” buyers’ guide.