EnergyHow to reduce 30% of your SME's energy costs in 2026
8 minMar 15, 2026
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Buildness Energy Team
Solar Energy Consultants
Portugal is one of the European countries with the highest solar exposure — a huge competitive advantage for companies investing in photovoltaic self-consumption.
How to calculate return on investment
For a company consuming 80,000 kWh/year at €0.18/kWh, a 50 kWp installation generates savings of around €7,500/year.
Real simulation: retail company in Braga, 60 kWp, investment €38,000, return in 5.1 years. Cumulative savings at 10 years: €51,000.
Tax benefits available in 2026
The fiscal framework for self-consumption in Portugal is very favorable for businesses.
- RFAI: 25% to 32% deduction from IRC
- Accelerated depreciation (50% in year 1)
- IMI exemption for buildings with self-consumption
- EU funds (PT2030): 40 to 85% co-financing for eligible SMEs
Installation types
The right type depends on consumption profile, available area and company goals.
- Rooftop: ideal for companies with flat roofs
- Solar carport: for companies with parking areas
- Ground-mounted: for industrial spaces with available land
Simplified licensing process
Since 2020, licensing for self-consumption has been significantly simplified.
Buildness Energy handles the entire licensing, installation and activation process.
Solar self-consumption is one of the best risk/return investments for Portuguese SMEs today.
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