Solar energy has been growing in Portugal — and for good reason. We are one of the countries with the highest solar exposure in Europe, making photovoltaic systems especially advantageous. Still, many Portuguese people hesitate due to persistent misconceptions in public discourse.
In this article, Roteiro do Saber helps clarify the main myths about solar energy and shows why it’s worth investing in this clean, renewable, and increasingly accessible source.
1. “Solar energy only works with direct sunlight”
❌ Myth.
✅ Truth: Solar panels generate electricity even on cloudy days. Photovoltaic technology captures diffuse light, not just direct sunlight. Of course, production is higher on sunny days — but that doesn’t mean they stop working under overcast skies.
2. “Installing solar panels is too expensive”
❌ Myth.
✅ Truth: Prices have dropped significantly in recent years. Additionally, there are government incentives and subsidies that reduce the initial investment. Most importantly, the return on investment occurs in just a few years, with direct savings on your electricity bill month after month.
3. “I need batteries to use solar energy”
❌ Myth.
✅ Truth: Batteries are useful for storing excess energy but are not mandatory. In a grid-connected system (self-consumption with zero or partial injection), your home uses solar energy in real time and only draws from the grid when necessary.
4. “Solar panel maintenance is complicated”
❌ Myth.
✅ Truth: Solar systems require minimal maintenance. Occasional cleaning (1–2 times per year) and periodic technical inspections are generally enough to keep the system running optimally for decades.
5. “It’s not worth it in apartments or urban areas”
❌ Myth.
✅ Truth: In many cases, it is worth it — especially with growing legislation on energy communities and shared self-consumption. Even in apartment buildings or small rooftops, there are viable solutions to reduce your electricity bill and increase energy autonomy.
6. “Portugal already has enough renewable energy”
❌ Myth.
✅ Truth: Portugal has made progress, but we still rely heavily on fossil fuels, especially during peak consumption months. By producing your own energy, you actively contribute to the country’s energy transition — while saving money.
Debunking solar energy myths is the first step toward making informed decisions. The technology is now more accessible, efficient, and tailored to the needs of Portuguese consumers.
At Roteiro do Saber, we help find the ideal solution for every home, business, or space. Are you ready to take the next step?
Contact us and discover how to save — without myths and without complications.
