en.Wedoany.com Reported - Gustavo Cerbasi, a Brazilian financial writer and educator, has installed a SolaX Power energy storage system at his residence in São Roque (SP), achieving complete self-sufficiency during power outages without relying on the grid.
Cerbasi publicly shared his experience with the "Casa Inteligente" (Smart Home) project, which aims to make his home a model of energy independence. The latest highlight is the installation of the energy storage system, eliminating the home's dependence on the grid during blackouts. The property was purchased and renovated between 2017 and 2018, with the core concept of "survivalism"—ensuring the home operates fully in comfort and safety regardless of public energy, water, or sanitation supply. Since the renovation, the home has been equipped with a photovoltaic power station that generates more electricity than it consumes, with monthly energy costs limited to transmission fees charged by the grid company. However, by law, traditional photovoltaic systems must be grid-connected, causing the home to lose power entirely during outages—a critical issue in an environmentally protected area prone to tree falls and blackouts lasting over 24 hours.
To overcome this limitation, Cerbasi sought help from Plug Solar Energia, the company responsible for installing the property's photovoltaic station and electric vehicle charger. The partner recommended adopting a SolaX Power battery system. After installation, the home can operate both grid-connected and independently off-grid during power interruptions. The purchased batteries cover all essential household electricity needs, including indoor lighting, refrigerator, microwave, outlets, and satellite internet connection. This solution provides up to 18 hours of continuous autonomous power under normal usage without requiring energy conservation. Cerbasi also highlighted the product's compact design as a major advantage.
The system's efficiency has been verified in real-world scenarios. During a weekend gathering of over 15 people, a regional blackout left neighbors in complete darkness, while Cerbasi's home operated normally, with family members streaming TV series as usual. In another incident, while he was recording an online live class in his study, the street experienced a power outage—the only sign was a slight flicker of lights, and the class continued uninterrupted. Based on these results, the same system has also been installed in Cerbasi's apartment in downtown São Paulo.
For Cerbasi, the return on investment for the energy storage system goes far beyond electricity savings. "What is the cost of a single day's recording interrupted by a blackout? What is the price of canceling a sales live stream or rescheduling a business meeting?" he compares the potential losses caused by outages. He believes that the continuity of work and leisure without relying on grid fluctuations represents an immediate boost in productivity and quality of life. Cerbasi stated: "The SolaX Power equipment is another component of the 'Casa Inteligente' project—an investment with extremely high returns, both financially and especially in terms of quality of life."
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